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- EMDB-18547: Cryo-EM Structure of Pre-B+ATP Complex (core part) -

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Basic information

Entry
Database: EMDB / ID: EMD-18547
TitleCryo-EM Structure of Pre-B+ATP Complex (core part)
Map data
Sample
  • Complex: human spliceosomal pre-B+ATP complex
    • Protein or peptide: x 13 types
    • RNA: x 4 types
  • Ligand: x 1 types
Keywordsspliceosome / SPLICING
Function / homology
Function and homology information


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 / box C/D sno(s)RNA binding / dense fibrillar component ...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 / box C/D sno(s)RNA binding / dense fibrillar component / cis assembly of pre-catalytic spliceosome / box C/D methylation guide snoRNP complex / U4/U6 snRNP / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / snRNP binding / U2-type catalytic step 1 spliceosome / RNA splicing, via transesterification reactions / U4 snRNA binding / spliceosomal tri-snRNP complex / U2-type spliceosomal complex / U2-type precatalytic spliceosome / mRNA cis splicing, via spliceosome / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / box C/D snoRNP assembly / U4 snRNP / U2 snRNP / U3 snoRNA binding / rRNA modification in the nucleus and cytosol / U2-type prespliceosome / precatalytic spliceosome / K63-linked polyubiquitin modification-dependent protein binding / mRNA Splicing - Minor Pathway / spliceosomal complex assembly / 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 / Cajal body / RNA processing / pre-mRNA intronic binding / U1 snRNA binding / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / mRNA Splicing - Major Pathway / RNA splicing / maturation of SSU-rRNA / response to cocaine / small-subunit processome / helicase activity / spliceosomal complex / mRNA splicing, via spliceosome / mRNA processing / osteoblast differentiation / ribosomal small subunit biogenesis / cellular response to xenobiotic stimulus / cellular response to tumor necrosis factor / ATPase binding / protein-macromolecule adaptor activity / cellular response to lipopolysaccharide / ubiquitinyl hydrolase 1 / RNA helicase activity / hydrolase activity / RNA helicase / nuclear speck / cell division / intracellular membrane-bounded organelle / GTPase activity / mRNA binding / chromatin / nucleolus / GTP binding / Golgi apparatus / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / protein-containing complex / RNA binding / extracellular exosome / zinc ion binding / nucleoplasm / ATP binding / identical protein binding / membrane / nucleus / cytosol / cytoplasm
Similarity search - Function
USP39 / PRP4-like superfamily / pre-mRNA processing factor 4 (PRP4) like / SNU66/SART1 family / HIND motif / SART-1 family / HIND motif / PWI domain superfamily / PWI domain / PWI domain profile. ...USP39 / PRP4-like superfamily / pre-mRNA processing factor 4 (PRP4) like / SNU66/SART1 family / HIND motif / SART-1 family / HIND motif / PWI domain superfamily / PWI domain / PWI domain profile. / Pre-mRNA processing factor 4 (PRP4)-like / Splicing Factor Motif, present in Prp18 and Pr04 / 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 / PWI domain / PWI, domain in splicing factors / Dim1 family / Mitosis protein DIM1 / Mitosis protein DIM1 / PRP1 splicing factor, N-terminal / PRP1 splicing factor, N-terminal / Splicing factor 3A subunit 1, conserved domain / Splicing factor 3A subunit 1 / Pre-mRNA splicing factor PRP21 like protein / SWAP/Surp / SWAP/Surp superfamily / Surp module / SURP motif repeat profile. / Suppressor-of-White-APricot splicing regulator / : / 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 / Zinc finger, UBP-type / Zn-finger in ubiquitin-hydrolases and other protein / Zinc finger UBP-type profile. / Brr2, N-terminal helicase PWI domain / : / N-terminal helicase PWI domain / Pre-mRNA-splicing helicase BRR2 plug domain / Tetratricopeptide repeat / Sec63 Brl domain / : / Pre-mRNA-splicing factor Syf1-like / 116kDa U5 small nuclear ribonucleoprotein component, N-terminal / 116kDa U5 small nuclear ribonucleoprotein component, C-terminal / Snu114, GTP-binding domain / 116 kDa U5 small nuclear ribonucleoprotein component N-terminus / Sec63 domain / Sec63 Brl domain / Tetratricopeptide repeat / HAT (Half-A-TPR) repeat / HAT (Half-A-TPR) repeats / Peptidase C19, ubiquitin carboxyl-terminal hydrolase / Ubiquitin carboxyl-terminal hydrolase / Ubiquitin specific protease domain / Ubiquitin specific protease (USP) domain profile. / DEAD-box subfamily ATP-dependent helicases signature. / RNA helicase, DEAD-box type, Q motif / ATP-dependent RNA helicase DEAD-box, conserved site / Elongation Factor G, domain II / Elongation Factor G, domain III / DEAD-box RNA helicase Q motif profile. / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / JAB1/Mov34/MPN/PAD-1 ubiquitin protease / Elongation factor EFG, domain V-like / Elongation factor G C-terminus / EF-G domain III/V-like / PROCT domain / Prp8 RNase domain IV, fingers region / PROCT (NUC072) domain / PRO8NT domain / PROCN domain / Pre-mRNA-processing-splicing factor 8, U6-snRNA-binding / Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding / RNA recognition motif, spliceosomal PrP8 / PRP8 domain IV core / Pre-mRNA-processing-splicing factor 8, U5-snRNA-binding domain superfamily / Prp8 RNase domain IV, palm region / PRO8NT (NUC069), PrP8 N-terminal domain / PROCN (NUC071) domain / U6-snRNA interacting domain of PrP8 / U5-snRNA binding site 2 of PrP8 / RNA recognition motif of the spliceosomal PrP8
Similarity search - Domain/homology
U4/U6 small nuclear ribonucleoprotein Prp4 / U4/U6.U5 tri-snRNP-associated protein 1 / U4/U6 small nuclear ribonucleoprotein Prp3 / U5 small nuclear ribonucleoprotein 200 kDa helicase / Pre-mRNA-processing factor 6 / NHP2-like protein 1 / Thioredoxin-like protein 4A / 116 kDa U5 small nuclear ribonucleoprotein component / Splicing factor 3A subunit 1 / Ubiquitin carboxyl-terminal hydrolase 39 ...U4/U6 small nuclear ribonucleoprotein Prp4 / U4/U6.U5 tri-snRNP-associated protein 1 / U4/U6 small nuclear ribonucleoprotein Prp3 / U5 small nuclear ribonucleoprotein 200 kDa helicase / Pre-mRNA-processing factor 6 / NHP2-like protein 1 / Thioredoxin-like protein 4A / 116 kDa U5 small nuclear ribonucleoprotein component / Splicing factor 3A subunit 1 / Ubiquitin carboxyl-terminal hydrolase 39 / Pre-mRNA-processing-splicing factor 8 / U4/U6 small nuclear ribonucleoprotein Prp31 / Probable ATP-dependent RNA helicase DDX23
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsZhang Z / Kumar V / Dybkov O / Will CL / Zhong J / Ludwig S / Urlaub H / Kastner B / Stark H / Luehrmann R
Funding support Germany, 1 items
OrganizationGrant numberCountry
German Research Foundation (DFG) Germany
CitationJournal: 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 ...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
DepositionOct 1, 2023-
Header (metadata) releaseMay 22, 2024-
Map releaseMay 22, 2024-
UpdateJul 10, 2024-
Current statusJul 10, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_18547.png

Downloads & links

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Map

FileDownload / File: emd_18547.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

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Size
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AxesZ (Sec.)Y (Row.)X (Col.)
1.16 Å/pix.
x 480 pix.
= 556.8 Å		1.16 Å/pix.
x 480 pix.
= 556.8 Å		1.16 Å/pix.
x 480 pix.
= 556.8 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.16 Å
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Histogram (log scale)
Contour LevelBy AUTHOR: 0.027
Minimum - Maximum-0.030250307 - 0.12983598
Average (Standard dev.)0.0003074425 (±0.00463138)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions480480480
Spacing480480480
CellA=B=C: 556.8 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_18547_half_map_1.map
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Half map: #1

Fileemd_18547_half_map_2.map
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Sample components

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Entire : human spliceosomal pre-B+ATP complex

EntireName: human spliceosomal pre-B+ATP complex
Components
  • Complex: human spliceosomal pre-B+ATP complex
    • Protein or peptide: U5 small nuclear ribonucleoprotein 200 kDa helicase
    • Protein or peptide: Probable ATP-dependent RNA helicase DDX23
    • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp3
    • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp31
    • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp4
    • Protein or peptide: Pre-mRNA-processing factor 6
    • Protein or peptide: Pre-mRNA-processing-splicing factor 8
    • Protein or peptide: Ubiquitin carboxyl-terminal hydrolase 39
    • Protein or peptide: U4/U6.U5 tri-snRNP-associated protein 1
    • Protein or peptide: 116 kDa U5 small nuclear ribonucleoprotein component
    • Protein or peptide: NHP2-like protein 1, N-terminally processed
    • Protein or peptide: Thioredoxin-like protein 4A
    • RNA: U5 snRNA
    • Protein or peptide: Splicing factor 3A subunit 1
    • RNA: U4 snRNA
    • RNA: U6 snRNA
    • RNA: 5'ss oligo
  • Ligand: INOSITOL HEXAKISPHOSPHATE

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Supramolecule #1: human spliceosomal pre-B+ATP complex

SupramoleculeName: human spliceosomal pre-B+ATP complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#17
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: U5 small nuclear ribonucleoprotein 200 kDa helicase

MacromoleculeName: U5 small nuclear ribonucleoprotein 200 kDa helicase / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 244.823422 KDa
SequenceString: MADVTARSLQ YEYKANSNLV LQADRSLIDR TRRDEPTGEV LSLVGKLEGT RMGDKAQRTK PQMQEERRAK RRKRDEDRHD INKMKGYTL LSEGIDEMVG IIYKPKTKET RETYEVLLSF IQAALGDQPR DILCGAADEV LAVLKNEKLR DKERRKEIDL L LGQTDDTR ...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

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Macromolecule #2: Probable ATP-dependent RNA helicase DDX23

MacromoleculeName: Probable ATP-dependent RNA helicase DDX23 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 95.785148 KDa
SequenceString: MAGELADKKD RDASPSKEER KRSRTPDRER DRDRDRKSSP SKDRKRHRSR DRRRGGSRSR SRSRSKSAER ERRHKERERD KERDRNKKD RDRDKDGHRR DKDRKRSSLS PGRGKDFKSR KDRDSKKDEE DEHGDKKPKA QPLSLEELLA KKKAEEEAEA K PKFLSKAE ...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

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Macromolecule #3: U4/U6 small nuclear ribonucleoprotein Prp3

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein Prp3 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 77.669188 KDa
SequenceString: MALSKRELDE LKPWIEKTVK RVLGFSEPTV VTAALNCVGK GMDKKKAADH LKPFLDDSTL RFVDKLFEAV EEGRSSRHSK SSSDRSRKR ELKEVFGDDS EISKESSGVK KRRIPRFEEV EEEPEVIPGP PSESPGMLTK LQIKQMMEAA TRQIEERKKQ L SFISPPTP ...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

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Macromolecule #4: U4/U6 small nuclear ribonucleoprotein Prp31

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein Prp31 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 55.528969 KDa
SequenceString: MSLADELLAD LEEAAEEEEG GSYGEEEEEP AIEDVQEETQ LDLSGDSVKT IAKLWDSKMF AEIMMKIEEY ISKQAKASEV MGPVEAAPE YRVIVDANNL TVEIENELNI IHKFIRDKYS KRFPELESLV PNALDYIRTV KELGNSLDKC KNNENLQQIL T NATIMVVS ...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

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Macromolecule #5: U4/U6 small nuclear ribonucleoprotein Prp4

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein Prp4 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 58.536105 KDa
SequenceString: MASSRASSTQ ATKTKAPDDL VAPVVKKPHI YYGSLEEKER ERLAKGESGI LGKDGLKAGI EAGNINITSG EVFEIEEHIS ERQAEVLAE FERRKRARQI NVSTDDSEVK ACLRALGEPI TLFGEGPAER RERLRNILSV VGTDALKKTK KDDEKSKKSK E EYQQTWYH ...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

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Macromolecule #6: Pre-mRNA-processing factor 6

MacromoleculeName: Pre-mRNA-processing factor 6 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 107.092242 KDa
SequenceString: MNKKKKPFLG MPAPLGYVPG LGRGATGFTT RSDIGPARDA NDPVDDRHAP PGKRTVGDQM KKNQAADDDD EDLNDTNYDE FNGYAGSLF SSGPYEKDDE EADAIYAALD KRMDERRKER REQREKEEIE KYRMERPKIQ QQFSDLKRKL AEVTEEEWLS I PEVGDARN ...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 #7: Pre-mRNA-processing-splicing factor 8

MacromoleculeName: Pre-mRNA-processing-splicing factor 8 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 273.97425 KDa
SequenceString: MAGVFPYRGP GNPVPGPLAP LPDYMSEEKL QEKARKWQQL QAKRYAEKRK FGFVDAQKED MPPEHVRKII RDHGDMTNRK FRHDKRVYL GALKYMPHAV LKLLENMPMP WEQIRDVPVL YHITGAISFV NEIPWVIEPV YISQWGSMWI MMRREKRDRR H FKRMRFPP ...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 #8: Ubiquitin carboxyl-terminal hydrolase 39

MacromoleculeName: Ubiquitin carboxyl-terminal hydrolase 39 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 65.481426 KDa
SequenceString: MSGRSKRESR GSTRGKRESE SRGSSGRVKR ERDREREPEA ASSRGSPVRV KREFEPASAR EAPASVVPFV RVKREREVDE DSEPEREVR AKNGRVDSED RRSRHCPYLD TINRSVLDFD FEKLCSISLS HINAYACLVC GKYFQGRGLK SHAYIHSVQF S HHVFLNLH ...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 #9: U4/U6.U5 tri-snRNP-associated protein 1

MacromoleculeName: U4/U6.U5 tri-snRNP-associated protein 1 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 90.414117 KDa
SequenceString: MGSSKKHRGE KEAAGTTAAA GTGGATEQPP RHREHKKHKH RSGGSGGSGG ERRKRSRERG GERGSGRRGA EAEARSSTHG RERSQAEPS ERRVKREKRD DGYEAAASSK TSSGDASSLS IEETNKLRAK LGLKPLEVNA IKKEAGTKEE PVTADVINPM A LRQREELR ...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 #10: 116 kDa U5 small nuclear ribonucleoprotein component

MacromoleculeName: 116 kDa U5 small nuclear ribonucleoprotein component / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 109.560625 KDa
SequenceString: MDTDLYDEFG NYIGPELDSD EDDDELGRET KDLDEMDDDD DDDDVGDHDD DHPGMEVVLH EDKKYYPTAE EVYGPEVETI VQEEDTQPL TEPIIKPVKT KKFTLMEQTL PVTVYEMDFL ADLMDNSELI RNVTLCGHLH HGKTCFVDCL IEQTHPEIRK R YDQDLCYT ...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 #11: NHP2-like protein 1, N-terminally processed

MacromoleculeName: NHP2-like protein 1, N-terminally processed / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.191524 KDa
SequenceString:
MTEADVNPKA YPLADAHLTK KLLDLVQQSC NYKQLRKGAN EATKTLNRGI SEFIVMAADA EPLEIILHLP LLCEDKNVPY VFVRSKQAL GRACGVSRPV IACSVTIKEG SQLKQQIQSI QQSIERLLV

UniProtKB: NHP2-like protein 1

+
Macromolecule #12: Thioredoxin-like protein 4A

MacromoleculeName: Thioredoxin-like protein 4A / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 16.807346 KDa
SequenceString:
MSYMLPHLHN GWQVDQAILS EEDRVVVIRF GHDWDPTCMK MDEVLYSIAE KVKNFAVIYL VDITEVPDFN KMYELYDPCT VMFFFRNKH IMIDLGTGNN NKINWAMEDK QEMVDIIETV YRGARKGRGL VVSPKDYSTK YRY

UniProtKB: Thioredoxin-like protein 4A

+
Macromolecule #14: Splicing factor 3A subunit 1

MacromoleculeName: Splicing factor 3A subunit 1 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 88.991094 KDa
SequenceString: MPAGPVQAVP PPPPVPTEPK QPTEEEASSK EDSAPSKPVV GIIYPPPEVR NIVDKTASFV ARNGPEFEAR IRQNEINNPK FNFLNPNDP YHAYYRHKVS EFKEGKAQEP SAAIPKVMQQ QQQTTQQQLP QKVQAQVIQE TIVPKEPPPE FEFIADPPSI S AFDLDVVK ...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 #13: U5 snRNA

MacromoleculeName: U5 snRNA / type: rna / ID: 13 / Number of copies: 1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.254855 KDa
SequenceString:
AUACUCUGGU UUCUCUUCAG AUCGCAUAAA UCUUUCGCCU UUUACUAAAG AUUUCCGUGG AGAGGAACAA CUCUGAGUCU UAACCCAAU UUUUUGAGGC CUUGCUUUGG CAAGGCUA

GENBANK: GENBANK: AC105129.4

+
Macromolecule #15: U4 snRNA

MacromoleculeName: U4 snRNA / type: rna / ID: 15 / Number of copies: 1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 46.181289 KDa
SequenceString:
AGCUUUGCGC AGUGGCAGUA UCGUAGCCAA UGAGGUCUAU CCGAGGCGCG AUUAUUGCUA AUUGAAAACU UUUCCCAAUA CCCCGCCGU GACGACUUGC AAUAUAGUCG GCACUGGCAA UUUUUGACAG UCUCUACGGA GACUG

GENBANK: GENBANK: M15956.1

+
Macromolecule #16: U6 snRNA

MacromoleculeName: U6 snRNA / type: rna / ID: 16 / Number of copies: 1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 34.09827 KDa
SequenceString:
GUGCUCGCUU CGGCAGCACA UAUACUAAAA UUGGAACGAU ACAGAGAAGA UUAGCAUGGC CCCUGCGCAA GGAUGACACG CAAAUUCGU GAAGCGUUCC AUAUUUU

GENBANK: GENBANK: NR_004394.1

+
Macromolecule #17: 5'ss oligo

MacromoleculeName: 5'ss oligo / type: rna / ID: 17 / Number of copies: 1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 4.260613 KDa
SequenceString:
AGUGGGUAAG AGC

+
Macromolecule #18: INOSITOL HEXAKISPHOSPHATE

MacromoleculeName: INOSITOL HEXAKISPHOSPHATE / type: ligand / ID: 18 / Number of copies: 1 / Formula: IHP
Molecular weightTheoretical: 660.035 Da
Chemical component information

ChemComp-IHP:
INOSITOL HEXAKISPHOSPHATE

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 7.9
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON III (4k x 4k) / Average electron dose: 45.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination 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 modelType of model: OTHER / Details: ab initio
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 94460
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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