EMDB-18718: Cryo-EM structure of the cross-exon pre-B complex

Basic information

Entry

Database: EMDB / ID: EMD-18718

• Title: Cryo-EM structure of the cross-exon pre-B complex

Sample

• Complex: cross-exon pre-B complex
  • Protein or peptide: x 42 types
  • RNA: x 5 types
• Protein or peptide: x 4 types

• Keywords: spliceosome / SPLICING

Function / homology

Function:

Lsm2-8 complex / U6 snRNA 3'-end binding / spliceosomal snRNP complex / ribonucleoprotein complex localization / U4atac snRNP / positive regulation of cytotoxic T cell differentiation / maturation of 5S rRNA / RNA localization / R-loop processing / U4atac snRNA binding / mRNA decay by 5' to 3' exoribonuclease / Lsm1-7-Pat1 complex / positive regulation of hippo signaling / regulation of mitotic cell cycle spindle assembly checkpoint / U6 snRNP / box C/D sno(s)RNA binding / U11/U12 snRNP / PH domain binding / dense fibrillar component / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / U7 snRNP / B-WICH complex / histone pre-mRNA 3'end processing complex / cis assembly of pre-catalytic spliceosome / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / box C/D methylation guide snoRNP complex / protein methylation / splicing factor binding / U4/U6 snRNP / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / U12-type spliceosomal complex / methylosome / 7-methylguanosine cap hypermethylation / U1 snRNP binding / pICln-Sm protein complex / P-body assembly / blastocyst formation / sno(s)RNA-containing ribonucleoprotein complex / snRNP binding / U2-type catalytic step 1 spliceosome / RNA splicing, via transesterification reactions / small nuclear ribonucleoprotein complex / U4 snRNA binding / SMN-Sm protein complex / telomerase RNA binding / spliceosomal tri-snRNP complex / telomerase holoenzyme complex / U2-type spliceosomal complex / U2-type precatalytic spliceosome / mRNA cis splicing, via spliceosome / P granule / commitment complex / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / box C/D snoRNP assembly / U4 snRNP / positive regulation of mRNA splicing, via spliceosome / U2 snRNP / U3 snoRNA binding / SAGA complex / rRNA modification in the nucleus and cytosol / RNA Polymerase II Transcription Termination / U1 snRNP / positive regulation of transcription by RNA polymerase III / U2-type prespliceosome / tRNA processing / precatalytic spliceosome / K63-linked polyubiquitin modification-dependent protein binding / positive regulation of transcription by RNA polymerase I / mRNA Splicing - Minor Pathway / spliceosomal complex assembly / mRNA catabolic process / regulation of RNA splicing / negative regulation of mRNA splicing, via spliceosome / nuclear-transcribed mRNA catabolic process / mRNA 3'-splice site recognition / MLL1 complex / spliceosomal tri-snRNP complex assembly / protein deubiquitination / single fertilization / U5 snRNA binding / U5 snRNP / Major pathway of rRNA processing in the nucleolus and cytosol / U2 snRNA binding / U6 snRNA binding / ribonucleoprotein complex binding / spliceosomal snRNP assembly / regulation of DNA repair / Cajal body / RNA processing / pre-mRNA intronic binding / U1 snRNA binding / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / mRNA Splicing - Major Pathway / RNA splicing

Domain/homology:

U4/U6.U5 small nuclear ribonucleoprotein 27kDa protein / RBM42, RNA recognition motif / U4/U6.U5 small nuclear ribonucleoproteins / Serine/threonine-protein PRP4, catalytic domain / : / USP39 / PRP4-like superfamily / pre-mRNA processing factor 4 (PRP4) like / SF3B6, RNA recognition motif / SNU66/SART1 family / HIND motif / SART-1 family / HIND motif / Sm-like protein Lsm8 / PWI domain superfamily / PWI domain / PWI domain profile. / SF3B4, RNA recognition motif 2 / U6 snRNA-associated Sm-like protein Lsm1/8 / Pre-mRNA processing factor 4 (PRP4)-like / U6 snRNA-associated Sm-like protein LSm2 / Splicing factor SF3a60 binding domain / Sm-like protein Lsm4 / Splicing factor SF3a60 binding domain / Splicing Factor Motif, present in Prp18 and Pr04 / Sm-like protein Lsm7 / Sm-like protein LSm5 / Sm-like protein Lsm3 / U6 snRNA-associated Sm-like protein Lsm3 / Cactus-binding C-terminus of cactin protein / Pre-mRNA-splicing factor 3 / U4/U6 small nuclear ribonucleoprotein Prp3 / pre-mRNA processing factor 3 domain / Prp31 C-terminal / U4/U6 small nuclear ribonucleoprotein Prp31 / Splicing factor 3A subunit 1, ubiquitin domain / Prp31 C terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / : / Replication stress response SDE2 C-terminal / PWI domain / PWI, domain in splicing factors / Dim1 family / Mitosis protein DIM1 / Mitosis protein DIM1 / PRP1 splicing factor, N-terminal / SF3A2 domain / : / PRP1 splicing factor, N-terminal / Pre-mRNA-splicing factor SF3a complex subunit 2 (Prp11) / U2 small nuclear ribonucleoprotein B'', RNA recognition motif 2 / U2 small nuclear ribonucleoprotein B'', RNA recognition motif 1 / Splicing factor SF3a60 /Prp9 subunit, C-terminal / SF3A3 domain / SF3a60/Prp9 C-terminal / Pre-mRNA-splicing factor SF3A3, of SF3a complex, Prp9 / SF3B4, RNA recognition motif 1 / : / Splicing factor 3B, subunit 5 / Splicing factor 3A subunit 1, conserved domain / Splicing factor 3A subunit 1 / Pre-mRNA splicing factor PRP21 like protein / : / Splicing factor 3B subunit 1 / : / Splicing factor 3B subunit 1 / Domain of unknown function DUF382 / Domain of unknown function (DUF382) / SWAP/Surp / SWAP/Surp superfamily / Surp module / SURP motif repeat profile. / Suppressor-of-White-APricot splicing regulator / : / Zinc-finger of C2H2 type / PHF5-like / PHF5-like protein / PSP, proline-rich / PSP / proline-rich domain in spliceosome associated proteins / Splicing factor 3B subunit 5/RDS3 complex subunit 10 / Splicing factor 3B subunit 10 (SF3b10) / Splicing factor 3B subunit 1-like / Matrin/U1-C, C2H2-type zinc finger / : / Zinc finger matrin-type profile. / Small ribonucleoprotein associated, SmB/SmN / : / : / Small nuclear ribonucleoprotein D1 / H/ACA ribonucleoprotein complex, subunit Nhp2-like / NOSIC / NOSIC (NUC001) domain / Nop domain / Nop domain superfamily / Nop, C-terminal domain / snoRNA binding domain, fibrillarin / Nop domain profile. / Ubiquitin Carboxyl-terminal Hydrolase-like zinc finger

Component:

U4/U6 small nuclear ribonucleoprotein Prp4 / U4/U6.U5 tri-snRNP-associated protein 1 / U4/U6 small nuclear ribonucleoprotein Prp3 / Splicing factor 3B subunit 1 / U5 small nuclear ribonucleoprotein 200 kDa helicase / Pre-mRNA-processing factor 6 / U6 snRNA-associated Sm-like protein LSm8 / U2 small nuclear ribonucleoprotein B'' / U2 small nuclear ribonucleoprotein A' / Small nuclear ribonucleoprotein-associated proteins B and B' / NHP2-like protein 1 / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein F / Small nuclear ribonucleoprotein G / U6 snRNA-associated Sm-like protein LSm3 / U6 snRNA-associated Sm-like protein LSm6 / Small nuclear ribonucleoprotein Sm D1 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein Sm D3 / Thioredoxin-like protein 4A / Splicing factor 3A subunit 3 / Splicing factor 3B subunit 2 / Serine/threonine-protein kinase PRP4 homolog / 116 kDa U5 small nuclear ribonucleoprotein component / Splicing factor 3B subunit 3 / Splicing factor 3B subunit 4 / Splicing factor 3A subunit 2 / Splicing factor 3A subunit 1 / Ubiquitin carboxyl-terminal hydrolase 39 / Pre-mRNA-processing-splicing factor 8 / PHD finger-like domain-containing protein 5A / U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein / U4/U6 small nuclear ribonucleoprotein Prp31 / U5 small nuclear ribonucleoprotein 40 kDa protein / RNA-binding protein 42 / Probable ATP-dependent RNA helicase DDX23 / Splicing factor 3B subunit 5 / U6 snRNA-associated Sm-like protein LSm7 / U6 snRNA-associated Sm-like protein LSm2 / Splicing factor 3B subunit 6 / U6 snRNA-associated Sm-like protein LSm5 / U6 snRNA-associated Sm-like protein LSm4

• Biological species: Homo sapiens (human)
• Method: single particle reconstruction / cryo EM / Resolution: 9.6 Å
• Authors: Zhang Z / Kumar V / Dybkov O / Will CL / Zhong J / Ludwig S / Urlaub H / Kastner B / Stark H / Luehrmann R

Funding support

Germany, 1 items

Organization	Grant number	Country
German Research Foundation (DFG)		Germany

• Citation: Journal: Nature / Year: 2024; Title: Structural insights into the cross-exon to cross-intron spliceosome switch.; Authors: Zhenwei Zhang / Vinay Kumar / Olexandr Dybkov / Cindy L Will / Jiayun Zhong / Sebastian E J Ludwig / Henning Urlaub / Berthold Kastner / Holger Stark / Reinhard Lührmann / ; Abstract: Early spliceosome assembly can occur through an intron-defined pathway, whereby U1 and U2 small nuclear ribonucleoprotein particles (snRNPs) assemble across the intron. Alternatively, it can occur through an exon-defined pathway, whereby U2 binds the branch site located upstream of the defined exon and U1 snRNP interacts with the 5' splice site located directly downstream of it. The U4/U6.U5 tri-snRNP subsequently binds to produce a cross-intron (CI) or cross-exon (CE) pre-B complex, which is then converted to the spliceosomal B complex. Exon definition promotes the splicing of upstream introns and plays a key part in alternative splicing regulation. However, the three-dimensional structure of exon-defined spliceosomal complexes and the molecular mechanism of the conversion from a CE-organized to a CI-organized spliceosome, a pre-requisite for splicing catalysis, remain poorly understood. Here cryo-electron microscopy analyses of human CE pre-B complex and B-like complexes reveal extensive structural similarities with their CI counterparts. The results indicate that the CE and CI spliceosome assembly pathways converge already at the pre-B stage. Add-back experiments using purified CE pre-B complexes, coupled with cryo-electron microscopy, elucidate the order of the extensive remodelling events that accompany the formation of B complexes and B-like complexes. The molecular triggers and roles of B-specific proteins in these rearrangements are also identified. We show that CE pre-B complexes can productively bind in trans to a U1 snRNP-bound 5' splice site. Together, our studies provide new mechanistic insights into the CE to CI switch during spliceosome assembly and its effect on pre-mRNA splice site pairing at this stage.

History

Deposition	Oct 24, 2023	-
Header (metadata) release	May 22, 2024	-
Map release	May 22, 2024	-
Update	Jul 10, 2024	-
Current status	Jul 10, 2024	Processing site: PDBe / Status: Released

Map

• File: Download / File: emd_18718.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
• Voxel size: X=Y=Z: 2.7 Å

Density

Contour Level	By AUTHOR: 0.0125
Minimum - Maximum	-0.05521538 - 0.10727159
Average (Standard dev.)	-0.00021772624 (±0.0058751684)

• Symmetry: Space group: 1

Details

EMDB XML:

Map geometry	Axis order X Y Z Origin 0 0 0 Dimensions 240 240 240 Spacing 240 240 240
Cell	A=B=C: 648.0 Å α=β=γ: 90.0 °

Supplemental data

Half map: #2

• File: emd_18718_half_map_1.map

Half map: #1

• File: emd_18718_half_map_2.map

Sample components

Entire : cross-exon pre-B complex

• Entire: Name: cross-exon pre-B complex

Components

• Complex: cross-exon pre-B complex
  • Protein or peptide: Pre-mRNA-processing-splicing factor 8
  • Protein or peptide: U5 small nuclear ribonucleoprotein 200 kDa helicase
  • RNA: U2 snRNA
  • RNA: U4 snRNA
  • RNA: U5 snRNA
  • RNA: U6 snRNA
  • Protein or peptide: Splicing factor 3A subunit 1
  • Protein or peptide: Splicing factor 3A subunit 2
  • Protein or peptide: 116 kDa U5 small nuclear ribonucleoprotein component
  • Protein or peptide: Thioredoxin-like protein 4A
  • Protein or peptide: U5 small nuclear ribonucleoprotein 40 kDa protein
  • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp4
  • Protein or peptide: NHP2-like protein 1, N-terminally processed
  • Protein or peptide: RNA-binding protein 42
  • Protein or peptide: Ubiquitin carboxyl-terminal hydrolase 39
  • Protein or peptide: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein
  • RNA: pre-mRNA
  • Protein or peptide: U4/U6.U5 tri-snRNP-associated protein 1
  • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp3
  • Protein or peptide: Serine/threonine-protein kinase PRP4 homolog
  • Protein or peptide: Pre-mRNA-processing factor 6
  • Protein or peptide: Probable ATP-dependent RNA helicase DDX23
  • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp31
  • Protein or peptide: Splicing factor 3B subunit 4
  • Protein or peptide: Splicing factor 3A subunit 3
  • Protein or peptide: Splicing factor 3B subunit 2
  • Protein or peptide: Splicing factor 3B subunit 5
  • Protein or peptide: Splicing factor 3B subunit 3
  • Protein or peptide: PHD finger-like domain-containing protein 5A
  • Protein or peptide: Splicing factor 3B subunit 1
  • Protein or peptide: Splicing factor 3B subunit 6
  • Protein or peptide: Small nuclear ribonucleoprotein Sm D2
  • Protein or peptide: U2 small nuclear ribonucleoprotein B''
  • Protein or peptide: Small nuclear ribonucleoprotein F
  • Protein or peptide: Small nuclear ribonucleoprotein-associated proteins B and B'
  • Protein or peptide: Small nuclear ribonucleoprotein Sm D3
  • Protein or peptide: Small nuclear ribonucleoprotein G
  • Protein or peptide: Small nuclear ribonucleoprotein E
  • Protein or peptide: Small nuclear ribonucleoprotein Sm D1
  • Protein or peptide: U2 small nuclear ribonucleoprotein A'
  • Protein or peptide: U6 snRNA-associated Sm-like protein LSm6
  • Protein or peptide: U6 snRNA-associated Sm-like protein LSm7
  • Protein or peptide: U6 snRNA-associated Sm-like protein LSm2
  • Protein or peptide: U6 snRNA-associated Sm-like protein LSm3
  • Protein or peptide: U6 snRNA-associated Sm-like protein LSm8
  • Protein or peptide: U6 snRNA-associated Sm-like protein LSm4
  • Protein or peptide: U6 snRNA-associated Sm-like protein LSm5
• Protein or peptide: Small nuclear ribonucleoprotein-associated proteins B and B'
• Protein or peptide: Small nuclear ribonucleoprotein G
• Protein or peptide: Small nuclear ribonucleoprotein-associated proteins B and B'
• Protein or peptide: Small nuclear ribonucleoprotein Sm D1

Supramolecule #1: cross-exon pre-B complex

• Supramolecule: Name: cross-exon pre-B complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#40, #45-#51
• Source (natural): Organism: Homo sapiens (human)

Macromolecule #1: Pre-mRNA-processing-splicing factor 8

• Macromolecule: Name: Pre-mRNA-processing-splicing factor 8 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 273.97425 KDa

Sequence

String:

MAGVFPYRGP GNPVPGPLAP LPDYMSEEKL QEKARKWQQL QAKRYAEKRK FGFVDAQKED MPPEHVRKII RDHGDMTNRK FRHDKRVYL GALKYMPHAV LKLLENMPMP WEQIRDVPVL YHITGAISFV NEIPWVIEPV YISQWGSMWI MMRREKRDRR H FKRMRFPP FDDEEPPLDY ADNILDVEPL EAIQLELDPE EDAPVLDWFY DHQPLRDSRK YVNGSTYQRW QFTLPMMSTL YR LANQLLT DLVDDNYFYL FDLKAFFTSK ALNMAIPGGP KFEPLVRDIN LQDEDWNEFN DINKIIIRQP IRTEYKIAFP YLY NNLPHH VHLTWYHTPN VVFIKTEDPD LPAFYFDPLI NPISHRHSVK SQEPLPDDDE EFELPEFVEP FLKDTPLYTD NTAN GIALL WAPRPFNLRS GRTRRALDIP LVKNWYREHC PAGQPVKVRV SYQKLLKYYV LNALKHRPPK AQKKRYLFRS FKATK FFQS TKLDWVEVGL QVCRQGYNML NLLIHRKNLN YLHLDYNFNL KPVKTLTTKE RKKSRFGNAF HLCREVLRLT KLVVDS HVQ YRLGNVDAFQ LADGLQYIFA HVGQLTGMYR YKYKLMRQIR MCKDLKHLIY YRFNTGPVGK GPGCGFWAAG WRVWLFF MR GITPLLERWL GNLLARQFEG RHSKGVAKTV TKQRVESHFD LELRAAVMHD ILDMMPEGIK QNKARTILQH LSEAWRCW K ANIPWKVPGL PTPIENMILR YVKAKADWWT NTAHYNRERI RRGATVDKTV CKKNLGRLTR LYLKAEQERQ HNYLKDGPY ITAEEAVAVY TTTVHWLESR RFSPIPFPPL SYKHDTKLLI LALERLKEAY SVKSRLNQSQ REELGLIEQA YDNPHEALSR IKRHLLTQR AFKEVGIEFM DLYSHLVPVY DVEPLEKITD AYLDQYLWYE ADKRRLFPPW IKPADTEPPP LLVYKWCQGI N NLQDVWET SEGECNVMLE SRFEKMYEKI DLTLLNRLLR LIVDHNIADY MTAKNNVVIN YKDMNHTNSY GIIRGLQFAS FI VQYYGLV MDLLVLGLHR ASEMAGPPQM PNDFLSFQDI ATEAAHPIRL FCRYIDRIHI FFRFTADEAR DLIQRYLTEH PDP NNENIV GYNNKKCWPR DARMRLMKHD VNLGRAVFWD IKNRLPRSVT TVQWENSFVS VYSKDNPNLL FNMCGFECRI LPKC RTSYE EFTHKDGVWN LQNEVTKERT AQCFLRVDDE SMQRFHNRVR QILMASGSTT FTKIVNKWNT ALIGLMTYFR EAVVN TQEL LDLLVKCENK IQTRIKIGLN SKMPSRFPPV VFYTPKELGG LGMLSMGHVL IPQSDLRWSK QTDVGITHFR SGMSHE EDQ LIPNLYRYIQ PWESEFIDSQ RVWAEYALKR QEAIAQNRRL TLEDLEDSWD RGIPRINTLF QKDRHTLAYD KGWRVRT DF KQYQVLKQNP FWWTHQRHDG KLWNLNNYRT DMIQALGGVE GILEHTLFKG TYFPTWEGLF WEKASGFEES MKWKKLTN A QRSGLNQIPN RRFTLWWSPT INRANVYVGF QVQLDLTGIF MHGKIPTLKI SLIQIFRAHL WQKIHESIVM DLCQVFDQE LDALEIETVQ KETIHPRKSY KMNSSCADIL LFASYKWNVS RPSLLADSKD VMDSTTTQKY WIDIQLRWGD YDSHDIERYA RAKFLDYTT DNMSIYPSPT GVLIAIDLAY NLHSAYGNWF PGSKPLIQQA MAKIMKANPA LYVLRERIRK GLQLYSSEPT E PYLSSQNY GELFSNQIIW FVDDTNVYRV TIHKTFEGNL TTKPINGAIF IFNPRTGQLF LKIIHTSVWA GQKRLGQLAK WK TAEEVAA LIRSLPVEEQ PKQIIVTRKG MLDPLEVHLL DFPNIVIKGS ELQLPFQACL KVEKFGDLIL KATEPQMVLF NLY DDWLKT ISSYTAFSRL ILILRALHVN NDRAKVILKP DKTTITEPHH IWPTLTDEEW IKVEVQLKDL ILADYGKKNN VNVA SLTQS EIRDIILGME ISAPSQQRQQ IAEIEKQTKE QSQLTATQTR TVNKHGDEII TSTTSNYETQ TFSSKTEWRV RAISA ANLH LRTNHIYVSS DDIKETGYTY ILPKNVLKKF ICISDLRAQI AGYLYGVSPP DNPQVKEIRC IVMVPQWGTH QTVHLP GQL PQHEYLKEME PLGWIHTQPN ESPQLSPQDV TTHAKIMADN PSWDGEKTII ITCSFTPGSC TLTAYKLTPS GYEWGRQ NT DKGNNPKGYL PSHYERVQML LSDRFLGFFM VPAQSSWNYN FMGVRHDPNM KYELQLANPK EFYHEVHRPS HFLNFALL Q EGEVYSADRE DLYA

UniProtKB: Pre-mRNA-processing-splicing factor 8

Macromolecule #2: U5 small nuclear ribonucleoprotein 200 kDa helicase

• Macromolecule: Name: U5 small nuclear ribonucleoprotein 200 kDa helicase / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA helicase
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 244.823422 KDa

Sequence

String:

MADVTARSLQ YEYKANSNLV LQADRSLIDR TRRDEPTGEV LSLVGKLEGT RMGDKAQRTK PQMQEERRAK RRKRDEDRHD INKMKGYTL LSEGIDEMVG IIYKPKTKET RETYEVLLSF IQAALGDQPR DILCGAADEV LAVLKNEKLR DKERRKEIDL L LGQTDDTR YHVLVNLGKK ITDYGGDKEI QNMDDNIDET YGVNVQFESD EEEGDEDVYG EVREEASDDD MEGDEAVVRC TL SANLVAS GELMSSKKKD LHPRDIDAFW LQRQLSRFYD DAIVSQKKAD EVLEILKTAS DDRECENQLV LLLGFNTFDF IKV LRQHRM MILYCTLLAS AQSEAEKERI MGKMEADPEL SKFLYQLHET EKEDLIREER SRRERVRQSR MDTDLETMDL DQGG EALAP RQVLDLEDLV FTQGSHFMAN KRCQLPDGSF RRQRKGYEEV HVPALKPKPF GSEEQLLPVE KLPKYAQAGF EGFKT LNRI QSKLYRAALE TDENLLLCAP TGAGKTNVAL MCMLREIGKH INMDGTINVD DFKIIYIAPM RSLVQEMVGS FGKRLA TYG ITVAELTGDH QLCKEEISAT QIIVCTPEKW DIITRKGGER TYTQLVRLII LDEIHLLHDD RGPVLEALVA RAIRNIE MT QEDVRLIGLS ATLPNYEDVA TFLRVDPAKG LFYFDNSFRP VPLEQTYVGI TEKKAIKRFQ IMNEIVYEKI MEHAGKNQ V LVFVHSRKET GKTARAIRDM CLEKDTLGLF LREGSASTEV LRTEAEQCKN LELKDLLPYG FAIHHAGMTR VDRTLVEDL FADKHIQVLV STATLAWGVN LPAHTVIIKG TQVYSPEKGR WTELGALDIL QMLGRAGRPQ YDTKGEGILI TSHGELQYYL SLLNQQLPI ESQMVSKLPD MLNAEIVLGN VQNAKDAVNW LGYAYLYIRM LRSPTLYGIS HDDLKGDPLL DQRRLDLVHT A ALMLDKNN LVKYDKKTGN FQVTELGRIA SHYYITNDTV QTYNQLLKPT LSEIELFRVF SLSSEFKNIT VREEEKLELQ KL LERVPIP VKESIEEPSA KINVLLQAFI SQLKLEGFAL MADMVYVTQS AGRLMRAIFE IVLNRGWAQL TDKTLNLCKM IDK RMWQSM CPLRQFRKLP EEVVKKIEKK NFPFERLYDL NHNEIGELIR MPKMGKTIHK YVHLFPKLEL SVHLQPITRS TLKV ELTIT PDFQWDEKVH GSSEAFWILV EDVDSEVILH HEYFLLKAKY AQDEHLITFF VPVFEPLPPQ YFIRVVSDRW LSCET QLPV SFRHLILPEK YPPPTELLDL QPLPVSALRN SAFESLYQDK FPFFNPIQTQ VFNTVYNSDD NVFVGAPTGS GKTICA EFA ILRMLLQSSE GRCVYITPME ALAEQVYMDW YEKFQDRLNK KVVLLTGETS TDLKLLGKGN IIISTPEKWD ILSRRWK QR KNVQNINLFV VDEVHLIGGE NGPVLEVICS RMRYISSQIE RPIRIVALSS SLSNAKDVAH WLGCSATSTF NFHPNVRP V PLELHIQGFN ISHTQTRLLS MAKPVYHAIT KHSPKKPVIV FVPSRKQTRL TAIDILTTCA ADIQRQRFLH CTEKDLIPY LEKLSDSTLK ETLLNGVGYL HEGLSPMERR LVEQLFSSGA IQVVVASRSL CWGMNVAAHL VIIMDTQYYN GKIHAYVDYP IYDVLQMVG HANRPLQDDE GRCVIMCQGS KKDFFKKFLY EPLPVESHLD HCMHDHFNAE IVTKTIENKQ DAVDYLTWTF L YRRMTQNP NYYNLQGISH RHLSDHLSEL VEQTLSDLEQ SKCISIEDEM DVAPLNLGMI AAYYYINYTT IELFSMSLNA KT KVRGLIE IISNAAEYEN IPIRHHEDNL LRQLAQKVPH KLNNPKFNDP HVKTNLLLQA HLSRMQLSAE LQSDTEEILS KAI RLIQAC VDVLSSNGWL SPALAAMELA QMVTQAMWSK DSYLKQLPHF TSEHIKRCTD KGVESVFDIM EMEDEERNAL LQLT DSQIA DVARFCNRYP NIELSYEVVD KDSIRSGGPV VVLVQLEREE EVTGPVIAPL FPQKREEGWW VVIGDAKSNS LISIK RLTL QQKAKVKLDF VAPATGAHNY TLYFMSDAYM GCDQEYKFSV DVKEAETDSD SD

UniProtKB: U5 small nuclear ribonucleoprotein 200 kDa helicase

Macromolecule #7: Splicing factor 3A subunit 1

• Macromolecule: Name: Splicing factor 3A subunit 1 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 88.991094 KDa

Sequence

String:

MPAGPVQAVP PPPPVPTEPK QPTEEEASSK EDSAPSKPVV GIIYPPPEVR NIVDKTASFV ARNGPEFEAR IRQNEINNPK FNFLNPNDP YHAYYRHKVS EFKEGKAQEP SAAIPKVMQQ QQQTTQQQLP QKVQAQVIQE TIVPKEPPPE FEFIADPPSI S AFDLDVVK LTAQFVARNG RQFLTQLMQK EQRNYQFDFL RPQHSLFNYF TKLVEQYTKI LIPPKGLFSK LKKEAENPRE VL DQVCYRV EWAKFQERER KKEEEEKEKE RVAYAQIDWH DFVVVETVDF QPNEQGNFPP PTTPEELGAR ILIQERYEKF GES EEVEME VESDEEDDKQ EKAEEPPSQL DQDTQVQDMD EGSDDEEEGQ KVPPPPETPM PPPLPPTPDQ VIVRKDYDPK ASKP LPPAP APDEYLVSPI TGEKIPASKM QEHMRIGLLD PRWLEQRDRS IREKQSDDEV YAPGLDIESS LKQLAERRTD IFGVE ETAI GKKIGEEEIQ KPEEKVTWDG HSGSMARTQQ AAQANITLQE QIEAIHKAKG LVPEDDTKEK IGPSKPNEIP QQPPPP SSA TNIPSSAPPI TSVPRPPTMP PPVRTTVVSA VPVMPRPPMA SVVRLPPGSV IAPMPPIIHA PRINVVPMPP SAPPIMA PR PPPMIVPTAF VPAPPVAPVP APAPMPPVHP PPPMEDEPTS KKLKTEDSLM PEEEFLRRNK GPVSIKVQVP NMQDKTEW K LNGQVLVFTL PLTDQVSVIK VKIHEATGMP AGKQKLQYEG IFIKDSNSLA YYNMANGAVI HLALKERGGR KK

UniProtKB: Splicing factor 3A subunit 1

Macromolecule #8: Splicing factor 3A subunit 2

• Macromolecule: Name: Splicing factor 3A subunit 2 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 49.327355 KDa

Sequence

String:

MDFQHRPGGK TGSGGVASSS ESNRDRRERL RQLALETIDI NKDPYFMKNH LGSYECKLCL TLHNNEGSYL AHTQGKKHQT NLARRAAKE AKEAPAQPAP EKVKVEVKKF VKIGRPGYKV TKQRDSEMGQ QSLLFQIDYP EIAEGIMPRH RFMSAYEQRI E PPDRRWQY LLMAAEPYET IAFKVPSREI DKAEGKFWTH WNRETKQFFL QFHFKMEKPP APPSLPAGPP GVKRPPPPLM NG LPPRPPL PESLPPPPPG GLPLPPMPPT GPAPSGPPGP PQLPPPAPGV HPPAPVVHPP ASGVHPPAPG VHPPAPGVHP PAP GVHPPT SGVHPPAPGV HPPAPGVHPP APGVHPPAPG VHPPAPGVHP PPSAGVHPQA PGVHPAAPAV HPQAPGVHPP APGM HPQAP GVHPQPPGVH PSAPGVHPQP PGVHPSNPGV HPPTPMPPML RPPLPSEGPG NIPPPPPTN

UniProtKB: Splicing factor 3A subunit 2

Macromolecule #9: 116 kDa U5 small nuclear ribonucleoprotein component

• Macromolecule: Name: 116 kDa U5 small nuclear ribonucleoprotein component / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 109.560625 KDa

Sequence

String:

MDTDLYDEFG NYIGPELDSD EDDDELGRET KDLDEMDDDD DDDDVGDHDD DHPGMEVVLH EDKKYYPTAE EVYGPEVETI VQEEDTQPL TEPIIKPVKT KKFTLMEQTL PVTVYEMDFL ADLMDNSELI RNVTLCGHLH HGKTCFVDCL IEQTHPEIRK R YDQDLCYT DILFTEQERG VGIKSTPVTV VLPDTKGKSY LFNIMDTPGH VNFSDEVTAG LRISDGVVLF IDAAEGVMLN TE RLIKHAV QERLAVTVCI NKIDRLILEL KLPPTDAYYK LRHIVDEVNG LISMYSTDEN LILSPLLGNV CFSSSQYSIC FTL GSFAKI YADTFGDINY QEFAKRLWGD IYFNPKTRKF TKKAPTSSSQ RSFVEFILEP LYKILAQVVG DVDTSLPRTL DELG IHLTK EELKLNIRPL LRLVCKKFFG EFTGFVDMCV QHIPSPKVGA KPKIEHTYTG GVDSDLGEAM SDCDPDGPLM CHTTK MYST DDGVQFHAFG RVLSGTIHAG QPVKVLGENY TLEDEEDSQI CTVGRLWISV ARYHIEVNRV PAGNWVLIEG VDQPIV KTA TITEPRGNEE AQIFRPLKFN TTSVIKIAVE PVNPSELPKM LDGLRKVNKS YPSLTTKVEE SGEHVILGTG ELYLDCV MH DLRKMYSEID IKVADPVVTF CETVVETSSL KCFAETPNKK NKITMIAEPL EKGLAEDIEN EVVQITWNRK KLGEFFQT K YDWDLLAARS IWAFGPDATG PNILVDDTLP SEVDKALLGS VKDSIVQGFQ WGTREGPLCD ELIRNVKFKI LDAVVAQEP LHRGGGQIIP TARRVVYSAF LMATPRLMEP YYFVEVQAPA DCVSAVYTVL ARRRGHVTQD APIPGSPLYT IKAFIPAIDS FGFETDLRT HTQGQAFSLS VFHHWQIVPG DPLDKSIVIR PLEPQPAPHL AREFMIKTRR RKGLSEDVSI SKFFDDPMLL E LAKQDVVL NYPM

UniProtKB: 116 kDa U5 small nuclear ribonucleoprotein component

Macromolecule #10: Thioredoxin-like protein 4A

• Macromolecule: Name: Thioredoxin-like protein 4A / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 16.807346 KDa

Sequence

String:

MSYMLPHLHN GWQVDQAILS EEDRVVVIRF GHDWDPTCMK MDEVLYSIAE KVKNFAVIYL VDITEVPDFN KMYELYDPCT VMFFFRNKH IMIDLGTGNN NKINWAMEDK QEMVDIIETV YRGARKGRGL VVSPKDYSTK YRY

UniProtKB: Thioredoxin-like protein 4A

Macromolecule #11: U5 small nuclear ribonucleoprotein 40 kDa protein

• Macromolecule: Name: U5 small nuclear ribonucleoprotein 40 kDa protein / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 39.359492 KDa

Sequence

String:

MIEQQKRKGP ELPLVPVKRQ RHELLLGAGS GPGAGQQQAT PGALLQAGPP RCSSLQAPIM LLSGHEGEVY CCKFHPNGST LASAGFDRL ILLWNVYGDC DNYATLKGHS GAVMELHYNT DGSMLFSAST DKTVAVWDSE TGERVKRLKG HTSFVNSCYP A RRGPQLVC TGSDDGTVKL WDIRKKAAIQ TFQNTYQVLA VTFNDTSDQI ISGGIDNDIK VWDLRQNKLT YTMRGHADSV TG LSLSSEG SYLLSNAMDN TVRVWDVRPF APKERCVKIF QGNVHNFEKN LLRCSWSPDG SKIAAGSADR FVYVWDTTSR RIL YKLPGH AGSINEVAFH PDEPIIISAS SDKRLYMGEI Q

UniProtKB: U5 small nuclear ribonucleoprotein 40 kDa protein

Macromolecule #12: U4/U6 small nuclear ribonucleoprotein Prp4

• Macromolecule: Name: U4/U6 small nuclear ribonucleoprotein Prp4 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 58.536105 KDa

Sequence

String:

MASSRASSTQ ATKTKAPDDL VAPVVKKPHI YYGSLEEKER ERLAKGESGI LGKDGLKAGI EAGNINITSG EVFEIEEHIS ERQAEVLAE FERRKRARQI NVSTDDSEVK ACLRALGEPI TLFGEGPAER RERLRNILSV VGTDALKKTK KDDEKSKKSK E EYQQTWYH EGPNSLKVAR LWIANYSLPR AMKRLEEARL HKEIPETTRT SQMQELHKSL RSLNNFCSQI GDDRPISYCH FS PNSKMLA TACWSGLCKL WSVPDCNLLH TLRGHNTNVG AIVFHPKSTV SLDPKDVNLA SCAADGSVKL WSLDSDEPVA DIE GHTVRV ARVMWHPSGR FLGTTCYDRS WRLWDLEAQE EILHQEGHSM GVYDIAFHQD GSLAGTGGLD AFGRVWDLRT GRCI MFLEG HLKEIYGINF SPNGYHIATG SGDNTCKVWD LRQRRCVYTI PAHQNLVTGV KFEPIHGNFL LTGAYDNTAK IWTHP GWSP LKTLAGHEGK VMGLDISSDG QLIATCSYDR TFKLWMAE

UniProtKB: U4/U6 small nuclear ribonucleoprotein Prp4

Macromolecule #13: NHP2-like protein 1, N-terminally processed

• Macromolecule: Name: NHP2-like protein 1, N-terminally processed / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 14.191524 KDa

Sequence

String:

MTEADVNPKA YPLADAHLTK KLLDLVQQSC NYKQLRKGAN EATKTLNRGI SEFIVMAADA EPLEIILHLP LLCEDKNVPY VFVRSKQAL GRACGVSRPV IACSVTIKEG SQLKQQIQSI QQSIERLLV

UniProtKB: NHP2-like protein 1

Macromolecule #14: RNA-binding protein 42

• Macromolecule: Name: RNA-binding protein 42 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 50.477922 KDa

Sequence

String:

MAGAGPAPGL PGAGGPVVPG PGAGIPGKSG EERLKEMEAE MALFEQEVLG APVPGIPTAV PAVPTVPTVP TVEAMQVPAA PVIRPIIAT NTYQQVQQTL EARAAAAATV VPPMVGGPPF VGPVGFGPGD RSHLDSPEAR EAMFLRRAAV APQRAPILRP A FVPHVLQR ADSALSSAAA GPRPMALRPP HQALVGPPLP GPPGPPMMLP PMARAPGPPL GSMAALRPPL EEPAAPRELG LG LGLGLKE KEEAVVAAAA GLEEASAAVA VGAGGAPAGP AVIGPSLPLA LAMPLPEPEP LPLPLEVVRG LLPPLRIPEL LSL RPRPRP PRPEPPPGLM ALEVPEPLGE DKKKGKPEKL KRCIRTAAGS SWEDPSLLEW DADDFRIFCG DLGNEVNDDI LARA FSRFP SFLKAKVIRD KRTGKTKGYG FVSFKDPSDY VRAMREMNGK YVGSRPIKLR KSMWKDRNLD VVRKKQKEKK KLGLR

UniProtKB: RNA-binding protein 42

Macromolecule #15: Ubiquitin carboxyl-terminal hydrolase 39

• Macromolecule: Name: Ubiquitin carboxyl-terminal hydrolase 39 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 65.481426 KDa

Sequence

String:

MSGRSKRESR GSTRGKRESE SRGSSGRVKR ERDREREPEA ASSRGSPVRV KREFEPASAR EAPASVVPFV RVKREREVDE DSEPEREVR AKNGRVDSED RRSRHCPYLD TINRSVLDFD FEKLCSISLS HINAYACLVC GKYFQGRGLK SHAYIHSVQF S HHVFLNLH TLKFYCLPDN YEIIDSSLED ITYVLKPTFT KQQIANLDKQ AKLSRAYDGT TYLPGIVGLN NIKANDYANA VL QALSNVP PLRNYFLEED NYKNIKRPPG DIMFLLVQRF GELMRKLWNP RNFKAHVSPH EMLQAVVLCS KKTFQITKQG DGV DFLSWF LNALHSALGG TKKKKKTIVT DVFQGSMRIF TKKLPHPDLP AEEKEQLLHN DEYQETMVES TFMYLTLDLP TAPL YKDEK EQLIIPQVPL FNILAKFNGI TEKEYKTYKE NFLKRFQLTK LPPYLIFCIK RFTKNNFFVE KNPTIVNFPI TNVDL REYL SEEVQAVHKN TTYDLIANIV HDGKPSEGSY RIHVLHHGTG KWYELQDLQV TDILPQMITL SEAYIQIWKR RDNDET NQQ GA

UniProtKB: Ubiquitin carboxyl-terminal hydrolase 39

Macromolecule #16: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein

• Macromolecule: Name: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein; type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 18.915414 KDa

Sequence

String:

MGRSRSRSPR RERRRSRSTS RERERRRRER SRSRERDRRR SRSRSPHRRR SRSPRRHRST SPSPSRLKER RDEEKKETKE TKSKERQIT EEDLEGKTEE EIEMMKLMGF ASFDSTKGKK VDGSVNAYAI NVSQKRKYRQ YMNRKGGFNR PLDFIA

UniProtKB: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein

Macromolecule #18: U4/U6.U5 tri-snRNP-associated protein 1

• Macromolecule: Name: U4/U6.U5 tri-snRNP-associated protein 1 / type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 90.414117 KDa

Sequence

String:

MGSSKKHRGE KEAAGTTAAA GTGGATEQPP RHREHKKHKH RSGGSGGSGG ERRKRSRERG GERGSGRRGA EAEARSSTHG RERSQAEPS ERRVKREKRD DGYEAAASSK TSSGDASSLS IEETNKLRAK LGLKPLEVNA IKKEAGTKEE PVTADVINPM A LRQREELR EKLAAAKEKR LLNQKLGKIK TLGEDDPWLD DTAAWIERSR QLQKEKDLAE KRAKLLEEMD QEFGVSTLVE EE FGQRRQD LYSARDLQGL TVEHAIDSFR EGETMILTLK DKGVLQEEED VLVNVNLVDK ERAEKNVELR KKKPDYLPYA EDE SVDDLA QQKPRSILSK YDEELEGERP HSFRLEQGGT ADGLRERELE EIRAKLRLQA QSLSTVGPRL ASEYLTPEEM VTFK KTKRR VKKIRKKEKE VVVRADDLLP LGDQTQDGDF GSRLRGRGRR RVSEVEEEKE PVPQPLPSDD TRVENMDISD EEEGG APPP GSPQVLEEDE AELELQKQLE KGRRLRQLQQ LQQLRDSGEK VVEIVKKLES RQRGWEEDED PERKGAIVFN ATSEFC RTL GEIPTYGLAG NREEQEELMD FERDEERSAN GGSESDGEEN IGWSTVNLDE EKQQQDFSAS STTILDEEPI VNRGLAA AL LLCQNKGLLE TTVQKVARVK APNKSLPSAV YCIEDKMAID DKYSRREEYR GFTQDFKEKD GYKPDVKIEY VDETGRKL T PKEAFRQLSH RFHGKGSGKM KTERRMKKLD EEALLKKMSS SDTPLGTVAL LQEKQKAQKT PYIVLSGSGK SMNANTITK

UniProtKB: U4/U6.U5 tri-snRNP-associated protein 1

Macromolecule #19: U4/U6 small nuclear ribonucleoprotein Prp3

• Macromolecule: Name: U4/U6 small nuclear ribonucleoprotein Prp3 / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 77.669188 KDa

Sequence

String:

MALSKRELDE LKPWIEKTVK RVLGFSEPTV VTAALNCVGK GMDKKKAADH LKPFLDDSTL RFVDKLFEAV EEGRSSRHSK SSSDRSRKR ELKEVFGDDS EISKESSGVK KRRIPRFEEV EEEPEVIPGP PSESPGMLTK LQIKQMMEAA TRQIEERKKQ L SFISPPTP QPKTPSSSQP ERLPIGNTIQ PSQAATFMND AIEKARKAAE LQARIQAQLA LKPGLIGNAN MVGLANLHAM GI APPKVEL KDQTKPTPLI LDEQGRTVDA TGKEIELTHR MPTLKANIRA VKREQFKQQL KEKPSEDMES NTFFDPRVSI APS QRQRRT FKFHDKGKFE KIAQRLRTKA QLEKLQAEIS QAARKTGIHT STRLALIAPK KELKEGDIPE IEWWDSYIIP NGFD LTEEN PKREDYFGIT NLVEHPAQLN PPVDNDTPVT LGVYLTKKEQ KKLRRQTRRE AQKELQEKVR LGLMPPPEPK VRISN LMRV LGTEAVQDPT KVEAHVRAQM AKRQKAHEEA NAARKLTAEQ RKVKKIKKLK EDISQGVHIS VYRVRNLSNP AKKFKI EAN AGQLYLTGVV VLHKDVNVVV VEGGPKAQKK FKRLMLHRIK WDEQTSNTKG DDDEESDEEA VKKTNKCVLV WEGTAKD RS FGEMKFKQCP TENMAREHFK KHGAEHYWDL ALSESVLEST D

UniProtKB: U4/U6 small nuclear ribonucleoprotein Prp3

Macromolecule #20: Serine/threonine-protein kinase PRP4 homolog

• Macromolecule: Name: Serine/threonine-protein kinase PRP4 homolog / type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO / EC number: non-specific serine/threonine protein kinase
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 117.264977 KDa

Sequence

String:

MAAAETQSLR EQPEMEDANS EKSINEENGE VSEDQSQNKH SRHKKKKHKH RSKHKKHKHS SEEDKDKKHK HKHKHKKHKR KEIIDASDK EGMSPAKRTK LDDLALLEDL EKQRALIKAE LDNELMEGKV QSGMGLILQG YESGSEEEGE IHEKARNGNR S STRSSSTK GKLELVDNKI TTKKRSKSRS KERTRHRSDK KKSKGGIEIV KEKTTRSKSK ERKKSKSPSK RSKSQDQARK SK SPTLRRR SQEKIGKARS PTDDKVKIED KSKSKDRKKS PIINESRSRD RGKKSRSPVD LRGKSKDRRS RSKERKSKRS ETD KEKKPI KSPSKDASSG KENRSPSRRP GRSPKRRSLS PKPRDKSRRS RSPLLNDRRS KQSKSPSRTL SPGRRAKSRS LERK RREPE RRRLSSPRTR PRDDILSRRE RSKDASPINR WSPTRRRSRS PIRRRSRSPL RRSRSPRRRS RSPRRRDRGR RSRSR LRRR SRSRGGRRRR SRSKVKEDKF KGSLSEGMKV EQESSSDDNL EDFDVEEEDE EALIEQRRIQ RQAIVQKYKY LAEDSN MSV PSEPSSPQSS TRTRSPSPDD ILERVAADVK EYERENVDTF EASVKAKHNL MTVEQNNGSS QKKLLAPDMF TESDDMF AA YFDSARLRAA GIGKDFKENP NLRDNWTDAE GYYRVNIGEV LDKRYNVYGY TGQGVFSNVV RARDNARANQ EVAVKIIR N NELMQKTGLK ELEFLKKLND ADPDDKFHCL RLFRHFYHKQ HLCLVFEPLS MNLREVLKKY GKDVGLHIKA VRSYSQQLF LALKLLKRCN ILHADIKPDN ILVNESKTIL KLCDFGSASH VADNDITPYL VSRFYRAPEI IIGKSYDYGI DMWSVGCTLY ELYTGKILF PGKTNNHMLK LAMDLKGKMP NKMIRKGVFK DQHFDQNLNF MYIEVDKVTE REKVTVMSTI NPTKDLLADL I GCQRLPED QRKKVHQLKD LLDQILMLDP AKRISINQAL QHAFIQEKI

UniProtKB: Serine/threonine-protein kinase PRP4 homolog

Macromolecule #21: Pre-mRNA-processing factor 6

• Macromolecule: Name: Pre-mRNA-processing factor 6 / type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 107.092242 KDa

Sequence

String:

MNKKKKPFLG MPAPLGYVPG LGRGATGFTT RSDIGPARDA NDPVDDRHAP PGKRTVGDQM KKNQAADDDD EDLNDTNYDE FNGYAGSLF SSGPYEKDDE EADAIYAALD KRMDERRKER REQREKEEIE KYRMERPKIQ QQFSDLKRKL AEVTEEEWLS I PEVGDARN KRQRNPRYEK LTPVPDSFFA KHLQTGENHT SVDPRQTQFG GLNTPYPGGL NTPYPGGMTP GLMTPGTGEL DM RKIGQAR NTLMDMRLSQ VSDSVSGQTV VDPKGYLTDL NSMIPTHGGD INDIKKARLL LKSVRETNPH HPPAWIASAR LEE VTGKLQ VARNLIMKGT EMCPKSEDVW LEAARLQPGD TAKAVVAQAV RHLPQSVRIY IRAAELETDI RAKKRVLRKA LEHV PNSVR LWKAAVELEE PEDARIMLSR AVECCPTSVE LWLALARLET YENARKVLNK ARENIPTDRH IWITAAKLEE ANGNT QMVE KIIDRAITSL RANGVEINRE QWIQDAEECD RAGSVATCQA VMRAVIGIGI EEEDRKHTWM EDADSCVAHN ALECAR AIY AYALQVFPSK KSVWLRAAYF EKNHGTRESL EALLQRAVAH CPKAEVLWLM GAKSKWLAGD VPAARSILAL AFQANPN SE EIWLAAVKLE SENDEYERAR RLLAKARSSA PTARVFMKSV KLEWVQDNIR AAQDLCEEAL RHYEDFPKLW MMKGQIEE Q KEMMEKAREA YNQGLKKCPH STPLWLLLSR LEEKIGQLTR ARAILEKSRL KNPKNPGLWL ESVRLEYRAG LKNIANTLM AKALQECPNS GILWSEAIFL EARPQRRTKS VDALKKCEHD PHVLLAVAKL FWSQRKITKA REWFHRTVKI DSDLGDAWAF FYKFELQHG TEEQQEEVRK RCESAEPRHG ELWCAVSKDI ANWQKKIGDI LRLVAGRIKN TF

UniProtKB: Pre-mRNA-processing factor 6

Macromolecule #22: Probable ATP-dependent RNA helicase DDX23

• Macromolecule: Name: Probable ATP-dependent RNA helicase DDX23 / type: protein_or_peptide / ID: 22 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 95.785148 KDa

Sequence

String:

MAGELADKKD RDASPSKEER KRSRTPDRER DRDRDRKSSP SKDRKRHRSR DRRRGGSRSR SRSRSKSAER ERRHKERERD KERDRNKKD RDRDKDGHRR DKDRKRSSLS PGRGKDFKSR KDRDSKKDEE DEHGDKKPKA QPLSLEELLA KKKAEEEAEA K PKFLSKAE REAEALKRRQ QEVEERQRML EEERKKRKQF QDLGRKMLED PQERERRERR ERMERETNGN EDEEGRQKIR EE KDKSKEL HAIKERYLGG IKKRRRTRHL NDRKFVFEWD ASEDTSIDYN PLYKERHQVQ LLGRGFIAGI DLKQQKREQS RFY GDLMEK RRTLEEKEQE EARLRKLRKK EAKQRWDDRH WSQKKLDEMT DRDWRIFRED YSITTKGGKI PNPIRSWKDS SLPP HILEV IDKCGYKEPT PIQRQAIPIG LQNRDIIGVA ETGSGKTAAF LIPLLVWITT LPKIDRIEES DQGPYAIILA PTREL AQQI EEETIKFGKP LGIRTVAVIG GISREDQGFR LRMGCEIVIA TPGRLIDVLE NRYLVLSRCT YVVLDEADRM IDMGFE PDV QKILEHMPVS NQKPDTDEAE DPEKMLANFE SGKHKYRQTV MFTATMPPAV ERLARSYLRR PAVVYIGSAG KPHERVE QK VFLMSESEKR KKLLAILEQG FDPPIIIFVN QKKGCDVLAK SLEKMGYNAC TLHGGKGQEQ REFALSNLKA GAKDILVA T DVAGRGIDIQ DVSMVVNYDM AKNIEDYIHR IGRTGRAGKS GVAITFLTKE DSAVFYELKQ AILESPVSSC PPELANHPD AQHKPGTILT KKRREETIFA

UniProtKB: Probable ATP-dependent RNA helicase DDX23

Macromolecule #23: U4/U6 small nuclear ribonucleoprotein Prp31

• Macromolecule: Name: U4/U6 small nuclear ribonucleoprotein Prp31 / type: protein_or_peptide / ID: 23 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 55.528969 KDa

Sequence

String:

MSLADELLAD LEEAAEEEEG GSYGEEEEEP AIEDVQEETQ LDLSGDSVKT IAKLWDSKMF AEIMMKIEEY ISKQAKASEV MGPVEAAPE YRVIVDANNL TVEIENELNI IHKFIRDKYS KRFPELESLV PNALDYIRTV KELGNSLDKC KNNENLQQIL T NATIMVVS VTASTTQGQQ LSEEELERLE EACDMALELN ASKHRIYEYV ESRMSFIAPN LSIIIGASTA AKIMGVAGGL TN LSKMPAC NIMLLGAQRK TLSGFSSTSV LPHTGYIYHS DIVQSLPPDL RRKAARLVAA KCTLAARVDS FHESTEGKVG YEL KDEIER KFDKWQEPPP VKQVKPLPAP LDGQRKKRGG RRYRKMKERL GLTEIRKQAN RMSFGEIEED AYQEDLGFSL GHLG KSGSG RVRQTQVNEA TKARISKTLQ RTLQKQSVVY GGKSTIRDRS SGTASSVAFT PLQGLEIVNP QAAEKKVAEA NQKYF SSMA EFLKVKGEKS GLMST

UniProtKB: U4/U6 small nuclear ribonucleoprotein Prp31

Macromolecule #24: Splicing factor 3B subunit 4

• Macromolecule: Name: Splicing factor 3B subunit 4 / type: protein_or_peptide / ID: 24 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 44.43657 KDa

Sequence

String:

MAAGPISERN QDATVYVGGL DEKVSEPLLW ELFLQAGPVV NTHMPKDRVT GQHQGYGFVE FLSEEDADYA IKIMNMIKLY GKPIRVNKA SAHNKNLDVG ANIFIGNLDP EIDEKLLYDT FSAFGVILQT PKIMRDPDTG NSKGYAFINF ASFDASDAAI E AMNGQYLC NRPITVSYAF KKDSKGERHG SAAERLLAAQ NPLSQADRPH QLFADAPPPP SAPNPVVSSL GSGLPPPGMP PP GSFPPPV PPPGALPPGI PPAMPPPPMP PGAAGHGPPS AGTPGAGHPG HGHSHPHPFP PGGMPHPGMS QMQLAHHGPH GLG HPHAGP PGSGGQPPPR PPPGMPHPGP PPMGMPPRGP PFGSPMGHPG PMPPHGMRGP PPLMPPHGYT GPPRPPPYGY QRGP LPPPR PTPRPPVPPR GPLRGPLPQ

UniProtKB: Splicing factor 3B subunit 4

Macromolecule #25: Splicing factor 3A subunit 3

• Macromolecule: Name: Splicing factor 3A subunit 3 / type: protein_or_peptide / ID: 25 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 58.934844 KDa

Sequence

String:

METILEQQRR YHEEKERLMD VMAKEMLTKK STLRDQINSD HRTRAMQDRY MEVSGNLRDL YDDKDGLRKE ELNAISGPNE FAEFYNRLK QIKEFHRKHP NEICVPMSVE FEELLKAREN PSEEAQNLVE FTDEEGYGRY LDLHDCYLKY INLKASEKLD Y ITYLSIFD QLFDIPKERK NAEYKRYLEM LLEYLQDYTD RVKPLQDQNE LFGKIQAEFE KKWENGTFPG WPKETSSALT HA GAHLDLS AFSSWEELAS LGLDRLKSAL LALGLKCGGT LEERAQRLFS TKGKSLESLD TSLFAKNPKS KGTKRDTERN KDI AFLEAQ IYEYVEILGE QRHLTHENVQ RKQARTGEER EEEEEEQISE SESEDEENEI IYNPKNLPLG WDGKPIPYWL YKLH GLNIN YNCEICGNYT YRGPKAFQRH FAEWRHAHGM RCLGIPNTAH FANVTQIEDA VSLWAKLKLQ KASERWQPDT EEEYE DSSG NVVNKKTYED LKRQGLL

UniProtKB: Splicing factor 3A subunit 3

Macromolecule #26: Splicing factor 3B subunit 2

• Macromolecule: Name: Splicing factor 3B subunit 2 / type: protein_or_peptide / ID: 26 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 100.377812 KDa

Sequence

String:

MATEHPEPPK AELQLPPPPP PGHYGAWAAQ ELQAKLAEIG APIQGNREEL VERLQSYTRQ TGIVLNRPVL RGEDGDKAAP PPMSAQLPG IPMPPPPLGL PPLQPPPPPP PPPPGLGLGF PMAHPPNLGP PPPLRVGEPV ALSEEERLKL AQQQAALLMQ Q EERAKQQG DHSLKEHELL EQQKRAAVLL EQERQQEIAK MGTPVPRPPQ DMGQIGVRTP LGPRVAAPVG PVGPTPTVLP MG APVPRPR GPPPPPGDEN REMDDPSVGP KIPQALEKIL QLKESRQEEM NSQQEEEEME TDARSSLGQS ASETEEDTVS VSK KEKNRK RRNRKKKKKP QRVRGVSSES SGDREKDSTR SRGSDSPAAD VEIEYVTEEP EIYEPNFIFF KRIFEAFKLT DDVK KEKEK EPEKLDKLEN SAAPKKKGFE EEHKDSDDDS SDDEQEKKPE APKLSKKKLR RMNRFTVAEL KQLVARPDVV EMHDV TAQD PKLLVHLKAT RNSVPVPRHW CFKRKYLQGK RGIEKPPFEL PDFIKRTGIQ EMREALQEKE EQKTMKSKMR EKVRPK MGK IDIDYQKLHD AFFKWQTKPK LTIHGDLYYE GKEFETRLKE KKPGDLSDEL RISLGMPVGP NAHKVPPPWL IAMQRYG PP PSYPNLKIPG LNSPIPESCS FGYHAGGWGK PPVDETGKPL YGDVFGTNAA EFQTKTEEEE IDRTPWGELE PSDEESSE E EEEEESDEDK PDETGFITPA DSGLITPGGF SSVPAGMETP ELIELRKKKI EEAMDGSETP QLFTVLPEKR TATVGGAMM GSTHIYDMST VMSRKGPAPE LQGVEVALAP EELELDPMAM TQKYEEHVRE QQAQVEKEDF SDMVAEHAAK QKQKKRKAQP QDSRGGSKK YKEFKF

UniProtKB: Splicing factor 3B subunit 2

Macromolecule #27: Splicing factor 3B subunit 5

• Macromolecule: Name: Splicing factor 3B subunit 5 / type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 10.149369 KDa

Sequence

String:

MTDRYTIHSQ LEHLQSKYIG TGHADTTKWE WLVNQHRDSY CSYMGHFDLL NYFAIAENES KARVRFNLME KMLQPCGPPA DKPEEN

UniProtKB: Splicing factor 3B subunit 5

Macromolecule #28: Splicing factor 3B subunit 3

• Macromolecule: Name: Splicing factor 3B subunit 3 / type: protein_or_peptide / ID: 28 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 135.718844 KDa

Sequence

String:

MFLYNLTLQR ATGISFAIHG NFSGTKQQEI VVSRGKILEL LRPDPNTGKV HTLLTVEVFG VIRSLMAFRL TGGTKDYIVV GSDSGRIVI LEYQPSKNMF EKIHQETFGK SGCRRIVPGQ FLAVDPKGRA VMISAIEKQK LVYILNRDAA ARLTISSPLE A HKANTLVY HVVGVDVGFE NPMFACLEMD YEEADNDPTG EAAANTQQTL TFYELDLGLN HVVRKYSEPL EEHGNFLITV PG GSDGPSG VLICSENYIT YKNFGDQPDI RCPIPRRRND LDDPERGMIF VCSATHKTKS MFFFLAQTEQ GDIFKITLET DED MVTEIR LKYFDTVPVA AAMCVLKTGF LFVASEFGNH YLYQIAHLGD DDEEPEFSSA MPLEEGDTFF FQPRPLKNLV LVDE LDSLS PILFCQIADL ANEDTPQLYV ACGRGPRSSL RVLRHGLEVS EMAVSELPGN PNAVWTVRRH IEDEFDAYII VSFVN ATLV LSIGETVEEV TDSGFLGTTP TLSCSLLGDD ALVQVYPDGI RHIRADKRVN EWKTPGKKTI VKCAVNQRQV VIALTG GEL VYFEMDPSGQ LNEYTERKEM SADVVCMSLA NVPPGEQRSR FLAVGLVDNT VRIISLDPSD CLQPLSMQAL PAQPESL CI VEMGGTEKQD ELGERGSIGF LYLNIGLQNG VLLRTVLDPV TGDLSDTRTR YLGSRPVKLF RVRMQGQEAV LAMSSRSW L SYSYQSRFHL TPLSYETLEF ASGFASEQCP EGIVAISTNT LRILALEKLG AVFNQVAFPL QYTPRKFVIH PESNNLIII ETDHNAYTEA TKAQRKQQMA EEMVEAAGED ERELAAEMAA AFLNENLPES IFGAPKAGNG QWASVIRVMN PIQGNTLDLV QLEQNEAAF SVAVCRFSNT GEDWYVLVGV AKDLILNPRS VAGGFVYTYK LVNNGEKLEF LHKTPVEEVP AAIAPFQGRV L IGVGKLLR VYDLGKKKLL RKCENKHIAN YISGIQTIGH RVIVSDVQES FIWVRYKRNE NQLIIFADDT YPRWVTTASL LD YDTVAGA DKFGNICVVR LPPNTNDEVD EDPTGNKALW DRGLLNGASQ KAEVIMNYHV GETVLSLQKT TLIPGGSESL VYT TLSGGI GILVPFTSHE DHDFFQHVEM HLRSEHPPLC GRDHLSFRSY YFPVKNVIDG DLCEQFNSME PNKQKNVSEE LDRT PPEVS KKLEDIRTRY AF

UniProtKB: Splicing factor 3B subunit 3

Macromolecule #29: PHD finger-like domain-containing protein 5A

• Macromolecule: Name: PHD finger-like domain-containing protein 5A / type: protein_or_peptide / ID: 29 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 12.427524 KDa

Sequence

String:

MAKHHPDLIF CRKQAGVAIG RLCEKCDGKC VICDSYVRPC TLVRICDECN YGSYQGRCVI CGGPGVSDAY YCKECTIQEK DRDGCPKIV NLGSSKTDLF YERKKYGFKK R

UniProtKB: PHD finger-like domain-containing protein 5A

Macromolecule #30: Splicing factor 3B subunit 1

• Macromolecule: Name: Splicing factor 3B subunit 1 / type: protein_or_peptide / ID: 30 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 146.024938 KDa

Sequence

String:

MAKIAKTHED IEAQIREIQG KKAALDEAQG VGLDSTGYYD QEIYGGSDSR FAGYVTSIAA TELEDDDDDY SSSTSLLGQK KPGYHAPVA LLNDIPQSTE QYDPFAEHRP PKIADREDEY KKHRRTMIIS PERLDPFADG GKTPDPKMNA RTYMDVMREQ H LTKEEREI RQQLAEKAKA GELKVVNGAA ASQPPSKRKR RWDQTADQTP GATPKKLSSW DQAETPGHTP SLRWDETPGR AK GSETPGA TPGSKIWDPT PSHTPAGAAT PGRGDTPGHA TPGHGGATSS ARKNRWDETP KTERDTPGHG SGWAETPRTD RGG DSIGET PTPGASKRKS RWDETPASQM GGSTPVLTPG KTPIGTPAMN MATPTPGHIM SMTPEQLQAW RWEREIDERN RPLS DEELD AMFPEGYKVL PPPAGYVPIR TPARKLTATP TPLGGMTGFH MQTEDRTMKS VNDQPSGNLP FLKPDDIQYF DKLLV DVDE STLSPEEQKE RKIMKLLLKI KNGTPPMRKA ALRQITDKAR EFGAGPLFNQ ILPLLMSPTL EDQERHLLVK VIDRIL YKL DDLVRPYVHK ILVVIEPLLI DEDYYARVEG REIISNLAKA AGLATMISTM RPDIDNMDEY VRNTTARAFA VVASALG IP SLLPFLKAVC KSKKSWQARH TGIKIVQQIA ILMGCAILPH LRSLVEIIEH GLVDEQQKVR TISALAIAAL AEAATPYG I ESFDSVLKPL WKGIRQHRGK GLAAFLKAIG YLIPLMDAEY ANYYTREVML ILIREFQSPD EEMKKIVLKV VKQCCGTDG VEANYIKTEI LPPFFKHFWQ HRMALDRRNY RQLVDTTVEL ANKVGAAEII SRIVDDLKDE AEQYRKMVME TIEKIMGNLG AADIDHKLE EQLIDGILYA FQEQTTEDSV MLNGFGTVVN ALGKRVKPYL PQICGTVLWR LNNKSAKVRQ QAADLISRTA V VMKTCQEE KLMGHLGVVL YEYLGEEYPE VLGSILGALK AIVNVIGMHK MTPPIKDLLP RLTPILKNRH EKVQENCIDL VG RIADRGA EYVSAREWMR ICFELLELLK AHKKAIRRAT VNTFGYIAKA IGPHDVLATL LNNLKVQERQ NRVCTTVAIA IVA ETCSPF TVLPALMNEY RVPELNVQNG VLKSLSFLFE YIGEMGKDYI YAVTPLLEDA LMDRDLVHRQ TASAVVQHMS LGVY GFGCE DSLNHLLNYV WPNVFETSPH VIQAVMGALE GLRVAIGPCR MLQYCLQGLF HPARKVRDVY WKIYNSIYIG SQDAL IAHY PRIYNDDKNT YIRYELDYIL

UniProtKB: Splicing factor 3B subunit 1

Macromolecule #31: Splicing factor 3B subunit 6

• Macromolecule: Name: Splicing factor 3B subunit 6 / type: protein_or_peptide / ID: 31 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 14.6069 KDa

Sequence

String:

MAMQAAKRAN IRLPPEVNRI LYIRNLPYKI TAEEMYDIFG KYGPIRQIRV GNTPETRGTA YVVYEDIFDA KNACDHLSGF NVCNRYLVV LYYNANRAFQ KMDTKKKEEQ LKLLKEKYGI NTDPPK

UniProtKB: Splicing factor 3B subunit 6

Macromolecule #32: Small nuclear ribonucleoprotein Sm D2

• Macromolecule: Name: Small nuclear ribonucleoprotein Sm D2 / type: protein_or_peptide / ID: 32 / Number of copies: 3 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 13.551928 KDa

Sequence

String:

MSLLNKPKSE MTPEELQKRE EEEFNTGPLS VLTQSVKNNT QVLINCRNNK KLLGRVKAFD RHCNMVLENV KEMWTEVPKS GKGKKKSKP VNKDRYISKM FLRGDSVIVV LRNPLIAGK

UniProtKB: Small nuclear ribonucleoprotein Sm D2

Macromolecule #33: U2 small nuclear ribonucleoprotein B''

• Macromolecule: Name: U2 small nuclear ribonucleoprotein B'' / type: protein_or_peptide / ID: 33 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 25.524367 KDa

Sequence

String:

MDIRPNHTIY INNMNDKIKK EELKRSLYAL FSQFGHVVDI VALKTMKMRG QAFVIFKELG SSTNALRQLQ GFPFYGKPMR IQYAKTDSD IISKMRGTFA DKEKKKEKKK AKTVEQTATT TNKKPGQGTP NSANTQGNST PNPQVPDYPP NYILFLNNLP E ETNEMMLS MLFNQFPGFK EVRLVPGRHD IAFVEFENDG QAGAARDALQ GFKITPSHAM KITYAKK

UniProtKB: U2 small nuclear ribonucleoprotein B''

Macromolecule #34: Small nuclear ribonucleoprotein F

• Macromolecule: Name: Small nuclear ribonucleoprotein F / type: protein_or_peptide / ID: 34 / Number of copies: 3 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 9.734171 KDa

Sequence

String:

MSLPLNPKPF LNGLTGKPVM VKLKWGMEYK GYLVSVDGYM NMQLANTEEY IDGALSGHLG EVLIRCNNVL YIRGVEEEEE DGEMRE

UniProtKB: Small nuclear ribonucleoprotein F

Macromolecule #35: Small nuclear ribonucleoprotein-associated proteins B and B'

• Macromolecule: Name: Small nuclear ribonucleoprotein-associated proteins B and B'; type: protein_or_peptide / ID: 35 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 24.642131 KDa

Sequence

String:

MTVGKSSKML QHIDYRMRCI LQDGRIFIGT FKAFDKHMNL ILCDCDEFRK IKPKNSKQAE REEKRVLGLV LLRGENLVSM TVEGPPPKD TGIARVPLAG AAGGPGIGRA AGRGIPAGVP MPQAPAGLAG PVRGVGGPSQ QVMTPQGRGT VAAAAAAATA S IAGAPTQY PPGRGGPPPP MGRGAPPPGM MGPPPGMRPP MGPPMGIPPG RGTPMGMPPP GMRPPPPGMR GPPPPGMRPP RP

UniProtKB: Small nuclear ribonucleoprotein-associated proteins B and B'

Macromolecule #36: Small nuclear ribonucleoprotein Sm D3

• Macromolecule: Name: Small nuclear ribonucleoprotein Sm D3 / type: protein_or_peptide / ID: 36 / Number of copies: 3 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 13.940308 KDa

Sequence

String:

MSIGVPIKVL HEAEGHIVTC ETNTGEVYRG KLIEAEDNMN CQMSNITVTY RDGRVAQLEQ VYIRGSKIRF LILPDMLKNA PMLKSMKNK NQGSGAGRGK AAILKAQVAA RGRGRGMGRG NIFQKRR

UniProtKB: Small nuclear ribonucleoprotein Sm D3

Macromolecule #37: Small nuclear ribonucleoprotein G

• Macromolecule: Name: Small nuclear ribonucleoprotein G / type: protein_or_peptide / ID: 37 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 8.508084 KDa

Sequence

String:

MSKAHPPELK KFMDKKLSLK LNGGRHVQGI LRGFDPFMNL VIDECVEMAT SGQQNNIGMV VIRGNSIIML EALERV

UniProtKB: Small nuclear ribonucleoprotein G

Macromolecule #38: Small nuclear ribonucleoprotein E

• Macromolecule: Name: Small nuclear ribonucleoprotein E / type: protein_or_peptide / ID: 38 / Number of copies: 3 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 10.817601 KDa

Sequence

String:

MAYRGQGQKV QKVMVQPINL IFRYLQNRSR IQVWLYEQVN MRIEGCIIGF DEYMNLVLDD AEEIHSKTKS RKQLGRIMLK GDNITLLQS VSN

UniProtKB: Small nuclear ribonucleoprotein E

Macromolecule #39: Small nuclear ribonucleoprotein Sm D1

• Macromolecule: Name: Small nuclear ribonucleoprotein Sm D1 / type: protein_or_peptide / ID: 39 / Number of copies: 2 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 13.310653 KDa

Sequence

String:

MKLVRFLMKL SHETVTIELK NGTQVHGTIT GVDVSMNTHL KAVKMTLKNR EPVQLETLSI RGNNIRYFIL PDSLPLDTLL VDVEPKVKS KKREAVAGRG RGRGRGRGRG RGRGRGGPRR

UniProtKB: Small nuclear ribonucleoprotein Sm D1

Macromolecule #40: U2 small nuclear ribonucleoprotein A'

• Macromolecule: Name: U2 small nuclear ribonucleoprotein A' / type: protein_or_peptide / ID: 40 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 28.456584 KDa

Sequence

String:

MVKLTAELIE QAAQYTNAVR DRELDLRGYK IPVIENLGAT LDQFDAIDFS DNEIRKLDGF PLLRRLKTLL VNNNRICRIG EGLDQALPC LTELILTNNS LVELGDLDPL ASLKSLTYLS ILRNPVTNKK HYRLYVIYKV PQVRVLDFQK VKLKERQEAE K MFKGKRGA QLAKDIARRS KTFNPGAGLP TDKKKGGPSP GDVEAIKNAI ANASTLAEVE RLKGLLQSGQ IPGRERRSGP TD DGEEEME EDTVTNGS

UniProtKB: U2 small nuclear ribonucleoprotein A'

Macromolecule #41: Small nuclear ribonucleoprotein-associated proteins B and B'

• Macromolecule: Name: Small nuclear ribonucleoprotein-associated proteins B and B'; type: protein_or_peptide / ID: 41 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 9.621396 KDa

Sequence

String:

KMLQHIDYRM RCILQDGRIF IGTFKAFDKH MNLILCDCDE FRKIKPKNSK QAEREEKRVL GLVLLRGENL VSMTVEGPPP KD

UniProtKB: Small nuclear ribonucleoprotein-associated proteins B and B'

Macromolecule #42: Small nuclear ribonucleoprotein G

• Macromolecule: Name: Small nuclear ribonucleoprotein G / type: protein_or_peptide / ID: 42 / Number of copies: 2 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 8.28981 KDa

Sequence

String:

KAHPPELKKF MDKKLSLKLN GGRHVQGILR GFDPFMNLVI DECVEMATSG QQNNIGMVVI RGNSIIMLEA LERV

UniProtKB: Small nuclear ribonucleoprotein G

Macromolecule #43: Small nuclear ribonucleoprotein-associated proteins B and B'

• Macromolecule: Name: Small nuclear ribonucleoprotein-associated proteins B and B'; type: protein_or_peptide / ID: 43 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 9.981784 KDa

Sequence

String:

GKSSKMLQHI DYRMRCILQD GRIFIGTFKA FDKHMNLILC DCDEFRKIKP KNSKQAEREE KRVLGLVLLR GENLVSMTVE GPPPKD

UniProtKB: Small nuclear ribonucleoprotein-associated proteins B and B'

Macromolecule #44: Small nuclear ribonucleoprotein Sm D1

• Macromolecule: Name: Small nuclear ribonucleoprotein Sm D1 / type: protein_or_peptide / ID: 44 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 9.30095 KDa

Sequence

String:

MKLVRFLMKL SHETVTIELK NGTQVHGTIT GVDVSMNTHL KAVKMTLKNR EPVQLETLSI RGNNIRYFIL PDSLPLDTLL VD

UniProtKB: Small nuclear ribonucleoprotein Sm D1

Macromolecule #45: U6 snRNA-associated Sm-like protein LSm6

• Macromolecule: Name: U6 snRNA-associated Sm-like protein LSm6 / type: protein_or_peptide / ID: 45 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 9.139571 KDa

Sequence

String:

MSLRKQTPSD FLKQIIGRPV VVKLNSGVDY RGVLACLDGY MNIALEQTEE YVNGQLKNKY GDAFIRGNNV LYISTQKRRM

UniProtKB: U6 snRNA-associated Sm-like protein LSm6

Macromolecule #46: U6 snRNA-associated Sm-like protein LSm7

• Macromolecule: Name: U6 snRNA-associated Sm-like protein LSm7 / type: protein_or_peptide / ID: 46 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 11.617363 KDa

Sequence

String:

MADKEKKKKE SILDLSKYID KTIRVKFQGG REASGILKGF DPLLNLVLDG TIEYMRDPDD QYKLTEDTRQ LGLVVCRGTS VVLICPQDG MEAIPNPFIQ QQDA

UniProtKB: U6 snRNA-associated Sm-like protein LSm7

Macromolecule #47: U6 snRNA-associated Sm-like protein LSm2

• Macromolecule: Name: U6 snRNA-associated Sm-like protein LSm2 / type: protein_or_peptide / ID: 47 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 10.847495 KDa

Sequence

String:

MLFYSFFKSL VGKDVVVELK NDLSICGTLH SVDQYLNIKL TDISVTDPEK YPHMLSVKNC FIRGSVVRYV QLPADEVDTQ LLQDAARKE ALQQKQ

UniProtKB: U6 snRNA-associated Sm-like protein LSm2

Macromolecule #48: U6 snRNA-associated Sm-like protein LSm3

• Macromolecule: Name: U6 snRNA-associated Sm-like protein LSm3 / type: protein_or_peptide / ID: 48 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 11.85939 KDa

Sequence

String:

MADDVDQQQT TNTVEEPLDL IRLSLDERIY VKMRNDRELR GRLHAYDQHL NMILGDVEET VTTIEIDEET YEEIYKSTKR NIPMLFVRG DGVVLVAPPL RVG

UniProtKB: U6 snRNA-associated Sm-like protein LSm3

Macromolecule #49: U6 snRNA-associated Sm-like protein LSm8

• Macromolecule: Name: U6 snRNA-associated Sm-like protein LSm8 / type: protein_or_peptide / ID: 49 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 10.410589 KDa

Sequence

String:

MTSALENYIN RTVAVITSDG RMIVGTLKGF DQTINLILDE SHERVFSSSQ GVEQVVLGLY IVRGDNVAVI GEIDEETDSA LDLGNIRAE PLNSVAH

UniProtKB: U6 snRNA-associated Sm-like protein LSm8

Macromolecule #50: U6 snRNA-associated Sm-like protein LSm4

• Macromolecule: Name: U6 snRNA-associated Sm-like protein LSm4 / type: protein_or_peptide / ID: 50 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 15.375775 KDa

Sequence

String:

MLPLSLLKTA QNHPMLVELK NGETYNGHLV SCDNWMNINL REVICTSRDG DKFWRMPECY IRGSTIKYLR IPDEIIDMVK EEVVAKGRG RGGLQQQKQQ KGRGMGGAGR GVFGGRGRGG IPGTGRGQPE KKPGRQAGKQ

UniProtKB: U6 snRNA-associated Sm-like protein LSm4

Macromolecule #51: U6 snRNA-associated Sm-like protein LSm5

• Macromolecule: Name: U6 snRNA-associated Sm-like protein LSm5 / type: protein_or_peptide / ID: 51 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 9.945448 KDa

Sequence

String:

MAANATTNPS QLLPLELVDK CIGSRIHIVM KSDKEIVGTL LGFDDFVNMV LEDVTEFEIT PEGRRITKLD QILLNGNNIT MLVPGGEGP EV

UniProtKB: U6 snRNA-associated Sm-like protein LSm5

Macromolecule #3: U2 snRNA

• Macromolecule: Name: U2 snRNA / type: rna / ID: 3 / Number of copies: 1
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 58.290324 KDa

Sequence

String:

CGCUUCUCGG CCUUUUGGCU AAGAUCAAGU GUAGUAUCUG UUCUUAUCAG UUUAAUAUCU GAUACGUCCU CUAUCCGAGG ACAAUAUAU UAAAUAGAUU UUUGGAGCAG GGAGAUGGAA UAGGAGCUUG CUCCGUCCAC UCCACGCAUC GACCUGGUAU U GCAGUACC UCCAGGAACG GUGC

GENBANK: GENBANK: X02665.1

Macromolecule #4: U4 snRNA

• Macromolecule: Name: U4 snRNA / type: rna / ID: 4 / Number of copies: 1
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 46.181289 KDa

Sequence

String:

AGCUUUGCGC AGUGGCAGUA UCGUAGCCAA UGAGGUCUAU CCGAGGCGCG AUUAUUGCUA AUUGAAAACU UUUCCCAAUA CCCCGCCGU GACGACUUGC AAUAUAGUCG GCACUGGCAA UUUUUGACAG UCUCUACGGA GACUG

GENBANK: GENBANK: M15956.1

Macromolecule #5: U5 snRNA

• Macromolecule: Name: U5 snRNA / type: rna / ID: 5 / Number of copies: 1
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 36.619484 KDa

Sequence

String:

ACUCUGGUUU CUCUUCAGAU CGCAUAAAUC UUUCGCCUUU UACUAAAGAU UUCCGUGGAG AGGAACAACU CUGAGUCUUA ACCCAAUUU UUUGAGGCCU UGCUUUGGCA AGGCUA

GENBANK: GENBANK: NR_002756.2

Macromolecule #6: U6 snRNA

• Macromolecule: Name: U6 snRNA / type: rna / ID: 6 / Number of copies: 1
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 24.479582 KDa

Sequence

String:

UUGGAACGAU ACAGAGAAGA UUAGCAUGGC CCCUGCGCAA GGAUGACACG CAAAUUCGUG AAGCGUUCCA UAUUUU

GENBANK: GENBANK: NR_004394.1

Macromolecule #17: pre-mRNA

• Macromolecule: Name: pre-mRNA / type: rna / ID: 17 / Number of copies: 1
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 4.714817 KDa

Sequence

String:

GAUGUCAUAC UUAUC

Experimental details

Structure determination

• Method: cryo EM
• Processing: single particle reconstruction
• Aggregation state: particle

Sample preparation

• Buffer: pH: 7.9
• Vitrification: Cryogen name: ETHANE

Electron microscopy

• Microscope: FEI TITAN KRIOS
• Image recording: Film or detector model: FEI FALCON III (4k x 4k) / Average electron dose: 45.0 e/Ų
• Electron beam: Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
• Electron optics: Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.5 µm
• Experimental equipment: Model: Titan Krios / Image courtesy: FEI Company

Image processing

• Startup model: Type of model: OTHER / Details: ab initio
• Final reconstruction: Resolution.type: BY AUTHOR / Resolution: 9.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 279781
• Initial angle assignment: Type: MAXIMUM LIKELIHOOD
• Final angle assignment: Type: MAXIMUM LIKELIHOOD