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- EMDB-8012: The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRN... -

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Basic information

Entry
Database: EMDB / ID: EMD-8012
TitleThe overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP at 3.7 Angstrom
Map dataThe overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP
Sample
  • Complex: The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP
    • RNA: x 3 types
    • Protein or peptide: x 25 types
    • Ligand: x 1 types
Keywordspre-mRNA splicing / snRNP / GTPase / U5 snRNA / Prp8 / spliceosome / U4/U6 snRNP / Brr2 / Snu114 / transcription
Function / homology
Function and homology information


spliceosomal conformational changes to generate catalytic conformation / mRNA decay by 5' to 3' exoribonuclease / snoRNA splicing / maturation of 5S rRNA / Lsm1-7-Pat1 complex / U6 snRNP / snoRNA guided rRNA 2'-O-methylation / deadenylation-dependent decapping of nuclear-transcribed mRNA / generation of catalytic spliceosome for first transesterification step / box C/D sno(s)RNA 3'-end processing ...spliceosomal conformational changes to generate catalytic conformation / mRNA decay by 5' to 3' exoribonuclease / snoRNA splicing / maturation of 5S rRNA / Lsm1-7-Pat1 complex / U6 snRNP / snoRNA guided rRNA 2'-O-methylation / deadenylation-dependent decapping of nuclear-transcribed mRNA / generation of catalytic spliceosome for first transesterification step / box C/D sno(s)RNA 3'-end processing / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / box C/D methylation guide snoRNP complex / U4/U6 snRNP / 7-methylguanosine cap hypermethylation / pICln-Sm protein complex / snRNP binding / small nuclear ribonucleoprotein complex / sno(s)RNA-containing ribonucleoprotein complex / splicing factor binding / SMN-Sm protein complex / spliceosomal tri-snRNP complex / U4 snRNA binding / commitment complex / mRNA cis splicing, via spliceosome / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / P-body assembly / U2 snRNP / U1 snRNP / U4 snRNP / poly(U) RNA binding / U2-type prespliceosome / U3 snoRNA binding / tRNA processing / precatalytic spliceosome / generation of catalytic spliceosome for second transesterification step / Major pathway of rRNA processing in the nucleolus and cytosol / mRNA 5'-splice site recognition / spliceosomal complex assembly / mRNA 3'-splice site recognition / nuclear-transcribed mRNA catabolic process / spliceosomal tri-snRNP complex assembly / Prp19 complex / U5 snRNA binding / U5 snRNP / U2 snRNA binding / U6 snRNA binding / pre-mRNA intronic binding / spliceosomal snRNP assembly / U1 snRNA binding / cellular response to glucose starvation / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / spliceosomal complex / small-subunit processome / P-body / mRNA splicing, via spliceosome / metallopeptidase activity / rRNA processing / nucleic acid binding / RNA helicase activity / RNA helicase / GTPase activity / mRNA binding / GTP binding / nucleolus / ATP hydrolysis activity / mitochondrion / RNA binding / nucleoplasm / ATP binding / identical protein binding / nucleus / cytoplasm / cytosol
Similarity search - Function
SNU66/SART1 family / HIND motif / SART-1 family / HIND motif / Sm-like protein Lsm8 / Pre-mRNA processing factor 4 (PRP4)-like / U6 snRNA-associated Sm-like protein LSm2 / Sm-like protein Lsm4 / Splicing Factor Motif, present in Prp18 and Pr04 / Sm-like protein Lsm7 ...SNU66/SART1 family / HIND motif / SART-1 family / HIND motif / Sm-like protein Lsm8 / Pre-mRNA processing factor 4 (PRP4)-like / U6 snRNA-associated Sm-like protein LSm2 / Sm-like protein Lsm4 / Splicing Factor Motif, present in Prp18 and Pr04 / Sm-like protein Lsm7 / U6 snRNA-associated Sm-like protein Lsm1/8 / Sm-like protein LSm5 / Sm-like protein Lsm3 / U6 snRNA-associated Sm-like protein Lsm3 / 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 / Prp31 C terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / Dim1 family / Mitosis protein DIM1 / Mitosis protein DIM1 / PRP1 splicing factor, N-terminal / PRP1 splicing factor, N-terminal / : / Brr2, N-terminal helicase PWI domain / : / N-terminal helicase PWI domain / Pre-mRNA-splicing helicase BRR2 plug domain / Winged Helix-turn-helix domain / Sec63 Brl domain / NOSIC / : / NOSIC (NUC001) domain / Nop domain / Nop domain superfamily / Nop, C-terminal domain / snoRNA binding domain, fibrillarin / Nop domain profile. / H/ACA ribonucleoprotein complex, subunit Nhp2-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 / Pre-mRNA-splicing factor Syf1-like / Sec63 domain / Sec63 Brl domain / Small nuclear ribonucleoprotein Sm D3 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein G / Small nuclear ribonucleoprotein F / Sm-like protein Lsm7/SmG / Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 / Sm-like protein Lsm6/SmF / LSM domain / LSM domain, eukaryotic/archaea-type / snRNP Sm proteins / HAT (Half-A-TPR) repeat / HAT (Half-A-TPR) repeats / : / Sm domain profile. / LSM domain superfamily / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / 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 / PRP8 domain IV core / Pre-mRNA-processing-splicing factor 8 / JAB/MPN domain / JAB1/MPN/MOV34 metalloenzyme domain / MPN domain / MPN domain profile. / Tetratricopeptide repeats / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / Ribosomal protein L7Ae conserved site
Similarity search - Domain/homology
U6 snRNA-associated Sm-like protein LSm6 / Pre-mRNA-splicing factor 6 / U4/U6 small nuclear ribonucleoprotein PRP4 / Pre-mRNA-splicing helicase BRR2 / Pre-mRNA-splicing factor 8 / Pre-mRNA-splicing factor SNU114 / LSM complex subunit LSM2 / 13 kDa ribonucleoprotein-associated protein / Small nuclear ribonucleoprotein-associated protein B / LSM complex subunit LSM4 ...U6 snRNA-associated Sm-like protein LSm6 / Pre-mRNA-splicing factor 6 / U4/U6 small nuclear ribonucleoprotein PRP4 / Pre-mRNA-splicing helicase BRR2 / Pre-mRNA-splicing factor 8 / Pre-mRNA-splicing factor SNU114 / LSM complex subunit LSM2 / 13 kDa ribonucleoprotein-associated protein / Small nuclear ribonucleoprotein-associated protein B / LSM complex subunit LSM4 / LSM complex subunit LSM5 / Small nuclear ribonucleoprotein G / Small nuclear ribonucleoprotein Sm D3 / LSM2-LSM8 complex subunit LSM8 / Pre-mRNA-processing factor 31 / LSM complex subunit LSM7 / Small nuclear ribonucleoprotein F / LSM complex subunit LSM3 / Small nuclear ribonucleoprotein Sm D1 / U4/U6 small nuclear ribonucleoprotein PRP3 / Small nuclear ribonucleoprotein Sm D2 / LSM complex subunit LSM6 / Spliceosomal protein DIB1 / Small nuclear ribonucleoprotein E / 66 kDa U4/U6.U5 small nuclear ribonucleoprotein component
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
Methodsingle particle reconstruction / Resolution: 3.7 Å
AuthorsNguyen THD / Galej WP
Funding support United Kingdom, 1 items
OrganizationGrant numberCountry
Medical Research Council (United Kingdom) United Kingdom
CitationJournal: Nature / Year: 2015
Title: The architecture of the spliceosomal U4/U6.U5 tri-snRNP.
Authors: Thi Hoang Duong Nguyen / Wojciech P Galej / Xiao-chen Bai / Christos G Savva / Andrew J Newman / Sjors H W Scheres / Kiyoshi Nagai /
Abstract: U4/U6.U5 tri-snRNP is a 1.5-megadalton pre-assembled spliceosomal complex comprising U5 small nuclear RNA (snRNA), extensively base-paired U4/U6 snRNAs and more than 30 proteins, including the key ...U4/U6.U5 tri-snRNP is a 1.5-megadalton pre-assembled spliceosomal complex comprising U5 small nuclear RNA (snRNA), extensively base-paired U4/U6 snRNAs and more than 30 proteins, including the key components Prp8, Brr2 and Snu114. The tri-snRNP combines with a precursor messenger RNA substrate bound to U1 and U2 small nuclear ribonucleoprotein particles (snRNPs), and transforms into a catalytically active spliceosome after extensive compositional and conformational changes triggered by unwinding of the U4 and U6 (U4/U6) snRNAs. Here we use cryo-electron microscopy single-particle reconstruction of Saccharomyces cerevisiae tri-snRNP at 5.9 Å resolution to reveal the essentially complete organization of its RNA and protein components. The single-stranded region of U4 snRNA between its 3' stem-loop and the U4/U6 snRNA stem I is loaded into the Brr2 helicase active site ready for unwinding. Snu114 and the amino-terminal domain of Prp8 position U5 snRNA to insert its loop I, which aligns the exons for splicing, into the Prp8 active site cavity. The structure provides crucial insights into the activation process and the active site of the spliceosome.
History
DepositionDec 15, 2015-
Header (metadata) releaseJan 27, 2016-
Map releaseJan 27, 2016-
UpdateMay 15, 2024-
Current statusMay 15, 2024Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.036
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.036
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-5gan
  • Surface level: 0.036
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_8012.png

Downloads & links

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Map

FileDownload / File: emd_8012.map.gz / Format: CCP4 / Size: 209.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationThe overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.43 Å/pix.
x 380 pix.
= 543.4 Å		1.43 Å/pix.
x 380 pix.
= 543.4 Å		1.43 Å/pix.
x 380 pix.
= 543.4 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.43 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.036 / Movie #1: 0.036
Minimum - Maximum-0.121906534 - 0.2434729
Average (Standard dev.)0.000010663559 (±0.007296074)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions380380380
Spacing380380380
CellA=B=C: 543.39996 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.431.431.43
M x/y/z380380380
origin x/y/z0.0000.0000.000
length x/y/z543.400543.400543.400
α/β/γ90.00090.00090.000
start NX/NY/NZ-190-190-190
NX/NY/NZ380380380
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS380380380
D min/max/mean-0.1220.2430.000

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Supplemental data

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Sample components

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Entire : The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP

EntireName: The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP
Components
  • Complex: The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP
    • RNA: U4 snRNA
    • RNA: U6 snRNA
    • Protein or peptide: Pre-mRNA-splicing factor 8
    • Protein or peptide: U4/U6 small nuclear ribonucleoprotein PRP4
    • Protein or peptide: Pre-mRNA-splicing factor 6
    • Protein or peptide: Spliceosomal protein DIB1
    • Protein or peptide: Pre-mRNA-processing factor 31
    • Protein or peptide: U4/U6 small nuclear ribonucleoprotein PRP3
    • Protein or peptide: Pre-mRNA-splicing helicase BRR2
    • Protein or peptide: Unknown protein
    • Protein or peptide: Small nuclear ribonucleoprotein-associated protein B
    • Protein or peptide: Small nuclear ribonucleoprotein Sm D1
    • Protein or peptide: Small nuclear ribonucleoprotein Sm D2
    • Protein or peptide: Small nuclear ribonucleoprotein Sm D3
    • Protein or peptide: Small nuclear ribonucleoprotein E
    • Protein or peptide: Small nuclear ribonucleoprotein F
    • Protein or peptide: Small nuclear ribonucleoprotein G
    • Protein or peptide: Snu66
    • RNA: U5 snRNA
    • Protein or peptide: 13 kDa ribonucleoprotein-associated protein
    • 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 LSm4
    • Protein or peptide: U6 snRNA-associated Sm-like protein LSm5
    • 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 LSm8
    • Protein or peptide: Pre-mRNA-splicing factor SNU114
    • Ligand: GUANOSINE-5'-TRIPHOSPHATE

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Supramolecule #1: The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP

SupramoleculeName: The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#29 / Details: 30 proteins and 3 snRNAs
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 1.5 MDa

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Macromolecule #1: U4 snRNA

MacromoleculeName: U4 snRNA / type: rna / ID: 1 / Number of copies: 1
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 51.186023 KDa
SequenceString:
AUCCUUAUGC ACGGGAAAUA CGCAUAUCAG UGAGGAUUCG UCCGAGAUUG UGUUUUUGCU GGUUGAAAUU UAAUUAUAAA CCAGACCGU CUCCUCAUGG UCAAUUCGGU GUUCGCUUUU GAAUACUUCA AGACUAUGUA GGGAAUUUUU GGAAUACCUU U

GENBANK: GENBANK: CP011083.1

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Macromolecule #2: U6 snRNA

MacromoleculeName: U6 snRNA / type: rna / ID: 2 / Number of copies: 1
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 35.883176 KDa
SequenceString:
GUUCGCGAAG UAACCCUUCG UGGACAUUUG GUCAAUUUGA AACAAUACAG AGAUGAUCAG CAGUUCCCCU GCAUAAGGAU GAACCGUUU UACAAAGAGA UUUAUUUCGU UUU

GENBANK: GENBANK: CP011090.1

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Macromolecule #19: U5 snRNA

MacromoleculeName: U5 snRNA / type: rna / ID: 19 / Number of copies: 1
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 68.643344 KDa
SequenceString: AAGCAGCUUU ACAGAUCAAU GGCGGAGGGA GGUCAACAUC AAGAACUGUG GGCCUUUUAU UGCCUAUAGA ACUUAUAACG AACAUGGUU CUUGCCUUUU ACCAGAACCA UCCGGGUGUU GUCUCCAUAG AAACAGGUAA AGCUGUCCGU UACUGUGGGC U UGCCAUAU ...String:
AAGCAGCUUU ACAGAUCAAU GGCGGAGGGA GGUCAACAUC AAGAACUGUG GGCCUUUUAU UGCCUAUAGA ACUUAUAACG AACAUGGUU CUUGCCUUUU ACCAGAACCA UCCGGGUGUU GUCUCCAUAG AAACAGGUAA AGCUGUCCGU UACUGUGGGC U UGCCAUAU UUUUUGGAAC UUUUCUGCCC UUUUUCUCAA UGAGUAAGGA GGGCGU

GENBANK: GENBANK: CP011085.1

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Macromolecule #3: Pre-mRNA-splicing factor 8

MacromoleculeName: Pre-mRNA-splicing factor 8 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 279.867469 KDa
SequenceString: MSGLPPPPPG FEEDSDLALP PPPPPPPGYE IEELDNPMVP SSVNEDTFLP PPPPPPSNFE INAEEIVDFT LPPPPPPPGL DELETKAEK KVELHGKRKL DIGKDTFVTR KSRKRAKKMT KKAKRSNLYT PKAEMPPEHL RKIINTHSDM ASKMYNTDKK A FLGALKYL ...String:
MSGLPPPPPG FEEDSDLALP PPPPPPPGYE IEELDNPMVP SSVNEDTFLP PPPPPPSNFE INAEEIVDFT LPPPPPPPGL DELETKAEK KVELHGKRKL DIGKDTFVTR KSRKRAKKMT KKAKRSNLYT PKAEMPPEHL RKIINTHSDM ASKMYNTDKK A FLGALKYL PHAILKLLEN MPHPWEQAKE VKVLYHTSGA ITFVNETPRV IEPVYTAQWS ATWIAMRREK RDRTHFKRMR FP PFDDDEP PLSYEQHIEN IEPLDPINLP LDSQDDEYVK DWLYDSRPLE EDSKKVNGTS YKKWSFDLPE MSNLYRLSTP LRD EVTDKN YYYLFDKKSF FNGKALNNAI PGGPKFEPLY PREEEEDYNE FNSIDRVIFR VPIRSEYKVA FPHLYNSRPR SVRI PWYNN PVSCIIQNDE EYDTPALFFD PSLNPIPHFI DNNSSLNVSN TKENGDFTLP EDFAPLLAEE EELILPNTKD AMSLY HSPF PFNRTKGKMV RAQDVALAKK WFLQHPDEEY PVKVKVSYQK LLKNYVLNEL HPTLPTNHNK TKLLKSLKNT KYFQQT TID WVEAGLQLCR QGHNMLNLLI HRKGLTYLHL DYNFNLKPTK TLTTKERKKS RLGNSFHLMR ELLKMMKLIV DTHVQFR LG NVDAFQLADG IHYILNHIGQ LTGIYRYKYK VMHQIRACKD LKHIIYYKFN KNLGKGPGCG FWQPAWRVWL NFLRGTIP L LERYIGNLIT RQFEGRSNEI VKTTTKQRLD AYYDLELRNS VMDDILEMMP ESIRQKKART ILQHLSEAWR CWKANIPWD VPGMPAPIKK IIERYIKSKA DAWVSAAHYN RERIKRGAHV EKTMVKKNLG RLTRLWIKNE QERQRQIQKN GPEITPEEAT TIFSVMVEW LESRSFSPIP FPPLTYKNDT KILVLALEDL KDVYASKVRL NASEREELAL IEEAYDNPHD TLNRIKKYLL T QRVFKPVD ITMMENYQNI SPVYSVDPLE KITDAYLDQY LWYEADQRKL FPNWIKPSDS EIPPLLVYKW TQGINNLSEI WD VSRGQSA VLLETTLGEM AEKIDFTLLN RLLRLIVDPN IADYITAKNN VVINFKDMSH VNKYGLIRGL KFASFIFQYY GLV IDLLLL GQERATDLAG PANNPNEFMQ FKSKEVEKAH PIRLYTRYLD RIYMLFHFEE DEGEELTDEY LAENPDPNFE NSIG YNNRK CWPKDSRMRL IRQDVNLGRA VFWEIQSRVP TSLTSIKWEN AFVSVYSKNN PNLLFSMCGF EVRILPRQRM EEVVS NDEG VWDLVDERTK QRTAKAYLKV SEEEIKKFDS RIRGILMASG STTFTKVAAK WNTSLISLFT YFREAIVATE PLLDIL VKG ETRIQNRVKL GLNSKMPTRF PPAVFYTPKE LGGLGMISAS HILIPASDLS WSKQTDTGIT HFRAGMTHED EKLIPTI FR YITTWENEFL DSQRVWAEYA TKRQEAIQQN RRLAFEELEG SWDRGIPRIS TLFQRDRHTL AYDRGHRIRR EFKQYSLE R NSPFWWTNSH HDGKLWNLNA YRTDVIQALG GIETILEHTL FKGTGFNSWE GLFWEKASGF EDSMQFKKLT HAQRTGLSQ IPNRRFTLWW SPTINRANVY VGFLVQLDLT GIFLHGKIPT LKISLIQIFR AHLWQKIHES IVFDICQILD GELDVLQIES VTKETVHPR KSYKMNSSAA DITMESVHEW EVSKPSLLHE TNDSFKGLIT NKMWFDVQLR YGDYDSHDIS RYVRAKFLDY T TDNVSMYP SPTGVMIGID LAYNMYDAYG NWFNGLKPLI QNSMRTIMKA NPALYVLRER IRKGLQIYQS SVQEPFLNSS NY AELFNND IKLFVDDTNV YRVTVHKTFE GNVATKAING CIFTLNPKTG HLFLKIIHTS VWAGQKRLSQ LAKWKTAEEV SAL VRSLPK EEQPKQIIVT RKAMLDPLEV HMLDFPNIAI RPTELRLPFS AAMSIDKLSD VVMKATEPQM VLFNIYDDWL DRIS SYTAF SRLTLLLRAL KTNEESAKMI LLSDPTITIK SYHLWPSFTD EQWITIESQM RDLILTEYGR KYNVNISALT QTEIK DIIL GQNIKAPSVK RQKMAELEAA RSEKQNDEEA AGASTVMKTK TINAQGEEIV VVASADYESQ TFSSKNEWRK SAIANT LLY LRLKNIYVSA DDFVEEQNVY VLPKNLLKKF IEISDVKIQV AAFIYGMSAK DHPKVKEIKT VVLVPQLGHV GSVQISN IP DIGDLPDTEG LELLGWIHTQ TEELKFMAAS EVATHSKLFA DKKRDCIDIS IFSTPGSVSL SAYNLTDEGY QWGEENKD I MNVLSEGFEP TFSTHAQLLL SDRITGNFII PSGNVWNYTF MGTAFNQEGD YNFKYGIPLE FYNEMHRPVH FLQFSELAG DEELEAEQID VFS

UniProtKB: Pre-mRNA-splicing factor 8

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Macromolecule #4: U4/U6 small nuclear ribonucleoprotein PRP4

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein PRP4 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 52.506984 KDa
SequenceString: MSKYIALENL PVDLQHKGAT QNESTADILK QLPHERLQAV LEKIPEEDLE VRRLLSILKK PEVVENEDVQ QRRIRLAEIL MVDEIDLEN INNMENINGE EVDEEDDEDF FTPATSELIF ARRFLINYSL ERSRKRLQKE MERHQKFNTR QELLSRRTEL Q RMANLELA ...String:
MSKYIALENL PVDLQHKGAT QNESTADILK QLPHERLQAV LEKIPEEDLE VRRLLSILKK PEVVENEDVQ QRRIRLAEIL MVDEIDLEN INNMENINGE EVDEEDDEDF FTPATSELIF ARRFLINYSL ERSRKRLQKE MERHQKFNTR QELLSRRTEL Q RMANLELA GSQLVSTKPI SAVSLSTDDM VVATGSWAGD LQVLNSQTLQ PLTQKLDSHV GKIGAIDWHP DSNNQMISCA ED GLIKNFQ YSNEEGGLRL LGDLVGHERR ISDVKYHPSG KFIGSASHDM TWRLWDASTH QELLLQEGHD KGVFSLSFQC DGS LVCSGG MDSLSMLWDI RSGSKVMTLA GHSKPIYTVA WSPNGYQVAT GGGDGIINVW DIRKRDEGQL NQILAHRNIV TQVR FSKED GGKKLVSCGY DNLINVYSSD TWLKMGSLAG HTDKIISLDI SNNSHFLVSG GWDRSIKLWN

UniProtKB: U4/U6 small nuclear ribonucleoprotein PRP4

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Macromolecule #5: Pre-mRNA-splicing factor 6

MacromoleculeName: Pre-mRNA-splicing factor 6 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 104.370133 KDa
SequenceString: MERPSFLDQE PPAGYVPGIG RGATGFSTKE KQVVSNDDKG RRIPKRYREN LNNHLQSQPK DDEDDEAANV FKTLELKLAQ KKKKRANEK DDDNSVDSSN VKRQFADLKE SLAAVTESEW MDIPDATDFT RRNKRNRIQE QLNRKTYAAP DSLIPGNVDL N KLTEEREK ...String:
MERPSFLDQE PPAGYVPGIG RGATGFSTKE KQVVSNDDKG RRIPKRYREN LNNHLQSQPK DDEDDEAANV FKTLELKLAQ KKKKRANEK DDDNSVDSSN VKRQFADLKE SLAAVTESEW MDIPDATDFT RRNKRNRIQE QLNRKTYAAP DSLIPGNVDL N KLTEEREK LLQSQIDENL AQLTKNASNP IQVNKPNAAT DALSYLKDLE NDRVNSLSDA TLEDLQKMRT ILKSYRKADP TN PQGWIAS ARLEEKARKF SVAKKIIENG CQECPRSSDI WLENIRLHES DVHYCKTLVA TAINFNPTSP LLWFKAIDLE STT VNKYRV VRKALQEIPR DEGLWKLAVS FEADKAQVIK MLEKATQFIP QSMDLLTAYT NLQSYHNAKM TLNSFRKILP QEPE IWIIS TLLEERNNPD IPVDKLVSLL KEGLLELSKN GYKATLSAWL KRAEALNDAP NSNLTCQAIV YAILEWLRES GEYES ELNN VDQILEKMPH SKVQIAVLKK LIQWDPCDTV LWSRLKMATE SYHKIEELLA FFQELLFQTK NSDDIRANMR EKSPGL LMM YVSEYWKAQK GDTRQTLVLI DQIIDFAPHN LDLRFFKIKL LGRSLQLDEL RDFFQQTFSS LEDFKISGTE RLYYKYV NF LRYQDLNEEA IKFLNERCLK SFPICHKFFL QLGQIYHSMG NIEMSRETYL SGTRLVPNCP LLWVSLSKID EIDLKNPV R ARSILDRGLL KNPDDVLFYI AKIQMEIRLG NLDQAELLVT QALQKFPSNA LLWVEQIKLF KHGNKSSLKK TIFQDALRR TQNDHRVLLE IGVSFYAEAQ YETSLKWLER ALKKCSRYGD TWVWLFRTYA RLGKDTVDLY NMFDQCEPTY GPEWIAASKN VKMQYCTPR EILLRLMNDK

UniProtKB: Pre-mRNA-splicing factor 6

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Macromolecule #6: Spliceosomal protein DIB1

MacromoleculeName: Spliceosomal protein DIB1 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 16.798387 KDa
SequenceString:
MASVLLPQLR TGWHVDQAIV TETKRLVVIR FGRKNDRQCM IMDELLSSIA ERVRNFAVIY LCDIDEVSDF DEMYELTDPM TVMFFYHNK HMMCDFGTGN NNKLNFIVDD KQEMIDILET IFRGARKNKG LVVSPYDYNH KRVS

UniProtKB: Spliceosomal protein DIB1

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Macromolecule #7: Pre-mRNA-processing factor 31

MacromoleculeName: Pre-mRNA-processing factor 31 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 56.382516 KDa
SequenceString: MSSEEDYFDE LEYDLADEVN EEKEDIQTKK LTTVNCQTEK FNPFEILPES IELFRTLALI SPDRLSLSET AQILPKIVDL KRILQQQEI DFIKLLPFFN EIIPLIKSNI KLMHNFLISL YSRRFPELSS LIPSPLQYSK VISILENENY SKNESDELFF H LENKAKLT ...String:
MSSEEDYFDE LEYDLADEVN EEKEDIQTKK LTTVNCQTEK FNPFEILPES IELFRTLALI SPDRLSLSET AQILPKIVDL KRILQQQEI DFIKLLPFFN EIIPLIKSNI KLMHNFLISL YSRRFPELSS LIPSPLQYSK VISILENENY SKNESDELFF H LENKAKLT REQILVLTMS MKTSFKNKEP LDIKTRTQIL EANSILENLW KLQEDIGQYI ASKISIIAPN VCFLVGPEIA AQ LIAHAGG VLEFSRIPSC NIASIGKNKH LSHELHTLES GVRQEGYLFA SDMIQKFPVS VHKQMLRMLC AKVSLAARVD AGQ KNGDRN TVLAHKWKAE LSKKARKLSE APSISETKAL PIPEDQPKKK RAGRKFRKYK EKFRLSHVRQ LQNRMEFGKQ EQTV LDSYG EEVGLGMSNT SLQQAVGATS GSRRSAGNQA KLTKVMKHRI SEANQQADEF LISLGHNTEQ PNLSPEMVQM HKKQH TNPE EETNWFSGHG

UniProtKB: Pre-mRNA-processing factor 31

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Macromolecule #8: U4/U6 small nuclear ribonucleoprotein PRP3

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein PRP3 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 55.97432 KDa
SequenceString: MPPRNTYEKG NPKRQNSPYY KPSFLRREET TNDEEKFQGH GLKTELHSAL KSSNLNLIRR TYQTGENPYL SDPHDRGSSS RFNRRYERG LKFYQKGEIS KRIAQERTLQ KQQEEEELKR KLKQEEDEKD KRKLIESGDL PNLELHEDKF LLDLSKFKIY Y DNNHGYEW ...String:
MPPRNTYEKG NPKRQNSPYY KPSFLRREET TNDEEKFQGH GLKTELHSAL KSSNLNLIRR TYQTGENPYL SDPHDRGSSS RFNRRYERG LKFYQKGEIS KRIAQERTLQ KQQEEEELKR KLKQEEDEKD KRKLIESGDL PNLELHEDKF LLDLSKFKIY Y DNNHGYEW WDTAYLDEKG ELMEKYDMNG TSPAEEKLAE DIDEVDDDDD DEHPSIRYVA HPLPEKINEA KVSIKAYLTQ HE RKRLRRN RRKMAREARE IKIKLGLLPK PEPKVKLSNM MSVFENDQNI TDPTAWEKVV KDQVDLRKRK HLEENERRHE DAI KRRKEA VNMNVEKPTV YHCKVFQFKN LQNPKIRFKL KMNSKELSLK GLCLRIRDDG PGIIIVVGNE KSCKFYENLV MKRI KWNED FELHTNTGDI KMDMHNNSIS KTWEGYLQDC KFKGWFMKVC NDQDSLLRTL GQFDSEHFYS PVQT

UniProtKB: U4/U6 small nuclear ribonucleoprotein PRP3

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Macromolecule #9: Pre-mRNA-splicing helicase BRR2

MacromoleculeName: Pre-mRNA-splicing helicase BRR2 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA helicase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 246.470266 KDa
SequenceString: MTEHETKDKA KKIREIYRYD EMSNKVLKVD KRFMNTSQNP QRDAEISQPK SMSGRISAKD MGQGLCNNIN KGLKENDVAV EKTGKSASL KKIQQHNTIL NSSSDFRLHY YPKDPSNVET YEQILQWVTE VLGNDIPHDL IIGTADIFIR QLKENEENED G NIEERKEK ...String:
MTEHETKDKA KKIREIYRYD EMSNKVLKVD KRFMNTSQNP QRDAEISQPK SMSGRISAKD MGQGLCNNIN KGLKENDVAV EKTGKSASL KKIQQHNTIL NSSSDFRLHY YPKDPSNVET YEQILQWVTE VLGNDIPHDL IIGTADIFIR QLKENEENED G NIEERKEK IQHELGINID SLKFNELVKL MKNITDYETH PDNSNKQAVA ILADDEKSDE EEVTEMSNNA NVLGGEINDN ED DDEEYDY NDVEVNSKKK NKRALPNIEN DIIKLSDSKT SNIESVPIYS IDEFFLQRKL RSELGYKDTS VIQDLSEKIL NDI ETLEHN PVALEQKLVD LLKFENISLA EFILKNRSTI FWGIRLAKST ENEIPNLIEK MVAKGLNDLV EQYKFRETTH SKRE LDSGD DQPQSSEAKR TKFSNPAIPP VIDLEKIKFD ESSKLMTVTK VSLPEGSFKR VKPQYDEIHI PAPSKPVIDY ELKEI TSLP DWCQEAFPSS ETTSLNPIQS KVFHAAFEGD SNMLICAPTG SGKTNIALLT VLKALSHHYN PKTKKLNLSA FKIVYI APL KALVQEQVRE FQRRLAFLGI KVAELTGDSR LSRKQIDETQ VLVSTPEKWD ITTRNSNNLA IVELVRLLII DEIHLLH DD RGPVLESIVA RTFWASKYGQ EYPRIIGLSA TLPNYEDVGR FLRVPKEGLF YFDSSFRPCP LSQQFCGIKE RNSLKKLK A MNDACYEKVL ESINEGNQII VFVHSRKETS RTATWLKNKF AEENITHKLT KNDAGSKQIL KTEAANVLDP SLRKLIESG IGTHHAGLTR SDRSLSEDLF ADGLLQVLVC TATLAWGVNL PAHTVIIKGT DVYSPEKGSW EQLSPQDVLQ MLGRAGRPRY DTFGEGIII TDQSNVQYYL SVLNQQLPIE SQFVSKLVDN LNAEVVAGNI KCRNDAVNWL AYTYLYVRML ASPMLYKVPD I SSDGQLKK FRESLVHSAL CILKEQELVL YDAENDVIEA TDLGNIASSF YINHASMDVY NRELDEHTTQ IDLFRIFSMS EE FKYVSVR YEEKRELKQL LEKAPIPIRE DIDDPLAKVN VLLQSYFSQL KFEGFALNSD IVFIHQNAGR LLRAMFEICL KRG WGHPTR MLLNLCKSAT TKMWPTNCPL RQFKTCPVEV IKRLEASTVP WGDYLQLETP AEVGRAIRSE KYGKQVYDLL KRFP KMSVT CNAQPITRSV MRFNIEIIAD WIWDMNVHGS LEPFLLMLED TDGDSILYYD VLFITPDIVG HEFTLSFTYE LKQHN QNNL PPNFFLTLIS ENWWHSEFEI PVSFNGFKLP KKFPPPTPLL ENISISTSEL GNDDFSEVFE FKTFNKIQSQ VFESLY NSN DSVFVGSGKG TGKTAMAELA LLNHWRQNKG RAVYINPSGE KIDFLLSDWN KRFSHLAGGK IINKLGNDPS LNLKLLA KS HVLLATPVQF ELLSRRWRQR KNIQSLELMI YDDAHEISQG VYGAVYETLI SRMIFIATQL EKKIRFVCLS NCLANARD F GEWAGMTKSN IYNFSPSERI EPLEINIQSF KDVEHISFNF SMLQMAFEAS AAAAGNRNSS SVFLPSRKDC MEVASAFMK FSKAIEWDML NVEEEQIVPY IEKLTDGHLR APLKHGVGIL YKGMASNDER IVKRLYEYGA VSVLLISKDC SAFACKTDEV IILGTNLYD GAEHKYMPYT INELLEMVGL ASGNDSMAGK VLILTSHNMK AYYKKFLIEP LPTESYLQYI IHDTLNNEIA N SIIQSKQD CVDWFTYSYF YRRIHVNPSY YGVRDTSPHG ISVFLSNLVE TCLNDLVESS FIEIDDTEAE VTAEVNGGDD EA TEIISTL SNGLIASHYG VSFFTIQSFV SSLSNTSTLK NMLYVLSTAV EFESVPLRKG DRALLVKLSK RLPLRFPEHT SSG SVSFKV FLLLQAYFSR LELPVDFQND LKDILEKVVP LINVVVDILS ANGYLNATTA MDLAQMLIQG VWDVDNPLRQ IPHF NNKIL EKCKEINVET VYDIMALEDE ERDEILTLTD SQLAQVAAFV NNYPNVELTY SLNNSDSLIS GVKQKITIQL TRDVE PENL QVTSEKYPFD KLESWWLVLG EVSKKELYAI KKVTLNKETQ QYELEFDTPT SGKHNLTIWC VCDSYLDADK ELSFEI NVK

UniProtKB: Pre-mRNA-splicing helicase BRR2

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Macromolecule #10: Unknown protein

MacromoleculeName: Unknown protein / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 8.528504 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)

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Macromolecule #11: Small nuclear ribonucleoprotein-associated protein B

MacromoleculeName: Small nuclear ribonucleoprotein-associated protein B / type: protein_or_peptide / ID: 11 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 22.42699 KDa
SequenceString: MSKIQVAHSS RLANLIDYKL RVLTQDGRVY IGQLMAFDKH MNLVLNECIE ERVPKTQLDK LRPRKDSKDG TTLNIKVEKR VLGLTILRG EQILSTVVED KPLLSKKERL VRDKKEKKQA QKQTKLRKEK EKKPGKIAKP NTANAKHTSS NSREIAQPSS S RYNGGNDN ...String:
MSKIQVAHSS RLANLIDYKL RVLTQDGRVY IGQLMAFDKH MNLVLNECIE ERVPKTQLDK LRPRKDSKDG TTLNIKVEKR VLGLTILRG EQILSTVVED KPLLSKKERL VRDKKEKKQA QKQTKLRKEK EKKPGKIAKP NTANAKHTSS NSREIAQPSS S RYNGGNDN IGANRSRFNN EAPPQTRKFQ PPPGFKRK

UniProtKB: Small nuclear ribonucleoprotein-associated protein B

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Macromolecule #12: Small nuclear ribonucleoprotein Sm D1

MacromoleculeName: Small nuclear ribonucleoprotein Sm D1 / type: protein_or_peptide / ID: 12 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 16.296798 KDa
SequenceString:
MKLVNFLKKL RNEQVTIELK NGTTVWGTLQ SVSPQMNAIL TDVKLTLPQP RLNKLNSNGI AMASLYLTGG QQPTASDNIA SLQYINIRG NTIRQIILPD SLNLDSLLVD QKQLNSLRRS GQIANDPSKK RRRDFGAPAN KRPRRGL

UniProtKB: Small nuclear ribonucleoprotein Sm D1

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Macromolecule #13: Small nuclear ribonucleoprotein Sm D2

MacromoleculeName: Small nuclear ribonucleoprotein Sm D2 / type: protein_or_peptide / ID: 13 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 12.876066 KDa
SequenceString:
MSSQIIDRPK HELSRAELEE LEEFEFKHGP MSLINDAMVT RTPVIISLRN NHKIIARVKA FDRHCNMVLE NVKELWTEKK GKNVINRER FISKLFLRGD SVIVVLKTPV E

UniProtKB: Small nuclear ribonucleoprotein Sm D2

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Macromolecule #14: Small nuclear ribonucleoprotein Sm D3

MacromoleculeName: Small nuclear ribonucleoprotein Sm D3 / type: protein_or_peptide / ID: 14 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 11.240139 KDa
SequenceString:
MTMNGIPVKL LNEAQGHIVS LELTTGATYR GKLVESEDSM NVQLRDVIAT EPQGAVTHMD QIFVRGSQIK FIVVPDLLKN APLFKKNSS RPMPPIRGPK RR

UniProtKB: Small nuclear ribonucleoprotein Sm D3

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Macromolecule #15: Small nuclear ribonucleoprotein E

MacromoleculeName: Small nuclear ribonucleoprotein E / type: protein_or_peptide / ID: 15 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 10.385098 KDa
SequenceString:
MSNKVKTKAM VPPINCIFNF LQQQTPVTIW LFEQIGIRIK GKIVGFDEFM NVVIDEAVEI PVNSADGKED VEKGTPLGKI LLKGDNITL ITSAD

UniProtKB: Small nuclear ribonucleoprotein E

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Macromolecule #16: Small nuclear ribonucleoprotein F

MacromoleculeName: Small nuclear ribonucleoprotein F / type: protein_or_peptide / ID: 16 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 9.669945 KDa
SequenceString:
MSESSDISAM QPVNPKPFLK GLVNHRVGVK LKFNSTEYRG TLVSTDNYFN LQLNEAEEFV AGVSHGTLGE IFIRCNNVLY IRELPN

UniProtKB: Small nuclear ribonucleoprotein F

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Macromolecule #17: Small nuclear ribonucleoprotein G

MacromoleculeName: Small nuclear ribonucleoprotein G / type: protein_or_peptide / ID: 17 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 8.490809 KDa
SequenceString:
MVSTPELKKY MDKKILLNIN GSRKVAGILR GYDIFLNVVL DDAMEINGED PANNHQLGLQ TVIRGNSIIS LEALDAI

UniProtKB: Small nuclear ribonucleoprotein G

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Macromolecule #18: Snu66

MacromoleculeName: Snu66 / type: protein_or_peptide / ID: 18
Details: Snu66 is mostly fitted as polyAla into helices and extended polypeptides within the EM map. The authors do not believe that the sequence number is correct.
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 28.660018 KDa
SequenceString: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) ...String:
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)R(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)TTKE AYKKLSQKFH GTKSNKK

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Macromolecule #20: 13 kDa ribonucleoprotein-associated protein

MacromoleculeName: 13 kDa ribonucleoprotein-associated protein / type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 13.582855 KDa
SequenceString:
MSAPNPKAFP LADAALTQQI LDVVQQAANL RQLKKGANEA TKTLNRGISE FIIMAADCEP IEILLHLPLL CEDKNVPYVF VPSRVALGR ACGVSRPVIA ASITTNDASA IKTQIYAVKD KIETLLI

UniProtKB: 13 kDa ribonucleoprotein-associated protein

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Macromolecule #21: U6 snRNA-associated Sm-like protein LSm2

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm2 / type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 11.177888 KDa
SequenceString:
MLFFSFFKTL VDQEVVVELK NDIEIKGTLQ SVDQFLNLKL DNISCTDEKK YPHLGSVRNI FIRGSTVRYV YLNKNMVDTN LLQDATRRE VMTERK

UniProtKB: LSM complex subunit LSM2

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Macromolecule #22: U6 snRNA-associated Sm-like protein LSm3

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm3 / type: protein_or_peptide / ID: 22 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 10.039262 KDa
SequenceString:
METPLDLLKL NLDERVYIKL RGARTLVGTL QAFDSHCNIV LSDAVETIYQ LNNEELSESE RRCEMVFIRG DTVTLISTPS EDDDGAVEI

UniProtKB: LSM complex subunit LSM3

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Macromolecule #23: U6 snRNA-associated Sm-like protein LSm4

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm4 / type: protein_or_peptide / ID: 23 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 21.29807 KDa
SequenceString:
MLPLYLLTNA KGQQMQIELK NGEIIQGILT NVDNWMNLTL SNVTEYSEES AINSEDNAES SKAVKLNEIY IRGTFIKFIK LQDNIIDKV KQQINSNNNS NSNGPGHKRY YNNRDSNNNR GNYNRRNNNN GNSNRRPYSQ NRQYNNSNSS NINNSINSIN S NNQNMNNG LGGSVQHHFN SSSPQKVEF

UniProtKB: LSM complex subunit LSM4

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Macromolecule #24: U6 snRNA-associated Sm-like protein LSm5

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm5 / type: protein_or_peptide / ID: 24 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 10.432954 KDa
SequenceString:
MSLPEILPLE VIDKTINQKV LIVLQSNREF EGTLVGFDDF VNVILEDAVE WLIDPEDESR NEKVMQHHGR MLLSGNNIAI LVPGGKKTP TEAL

UniProtKB: LSM complex subunit LSM5

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Macromolecule #25: U6 snRNA-associated Sm-like protein LSm6

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm6 / type: protein_or_peptide / ID: 25 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 9.406579 KDa
SequenceString:
MSGKASTEGS VTTEFLSDII GKTVNVKLAS GLLYSGRLES IDGFMNVALS SATEHYESNN NKLLNKFNSD VFLRGTQVMY ISEQKI

UniProtKB: U6 snRNA-associated Sm-like protein LSm6

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Macromolecule #26: U6 snRNA-associated Sm-like protein LSm7

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm7 / type: protein_or_peptide / ID: 26 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 13.027045 KDa
SequenceString:
MHQQHSKSEN KPQQQRKKFE GPKREAILDL AKYKDSKIRV KLMGGKLVIG VLKGYDQLMN LVLDDTVEYM SNPDDENNTE LISKNARKL GLTVIRGTIL VSLSSAEGSD VLYMQK

UniProtKB: LSM complex subunit LSM7

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Macromolecule #27: U6 snRNA-associated Sm-like protein LSm8

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm8 / type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 12.403378 KDa
SequenceString:
MSATLKDYLN KRVVIIKVDG ECLIASLNGF DKNTNLFITN VFNRISKEFI CKAQLLRGSE IALVGLIDAE NDDSLAPIDE KKVPMLKDT KNKIENEHVI WEKVYESKTK

UniProtKB: LSM2-LSM8 complex subunit LSM8

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Macromolecule #28: Pre-mRNA-splicing factor SNU114

MacromoleculeName: Pre-mRNA-splicing factor SNU114 / type: protein_or_peptide / ID: 28 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / Strain: BCY123
Molecular weightTheoretical: 114.132086 KDa
SequenceString: MEGDDLFDEF GNLIGVDPFD SDEEESVLDE QEQYQTNTFE GSGNNNEIES RQLTSLGSKK ELGISLEHPY GKEVEVLMET KNTQSPQTP LVEPVTERTK LQEHTIFTQL KKNIPKTRYN RDYMLSMANI PERIINVGVI GPLHSGKTSL MDLLVIDSHK R IPDMSKNV ...String:
MEGDDLFDEF GNLIGVDPFD SDEEESVLDE QEQYQTNTFE GSGNNNEIES RQLTSLGSKK ELGISLEHPY GKEVEVLMET KNTQSPQTP LVEPVTERTK LQEHTIFTQL KKNIPKTRYN RDYMLSMANI PERIINVGVI GPLHSGKTSL MDLLVIDSHK R IPDMSKNV ELGWKPLRYL DNLKQEIDRG LSIKLNGSTL LCTDLESKSR MINFLDAPGH VNFMDETAVA LAASDLVLIV ID VVEGVTF VVEQLIKQSI KNNVAMCFVI NKLDRLILDL KLPPMDAYLK LNHIIANINS FTKGNVFSPI DNNIIFASTK LGF TFTIKE FVSYYYAHSI PSSKIDDFTT RLWGSVYYHK GNFRTKPFEN VEKYPTFVEF ILIPLYKIFS YALSMEKDKL KNLL RSNFR VNLSQEALQY DPQPFLKHVL QLIFRQQTGL VDAITRCYQP FELFDNKTAH LSIPGKSTPE GTLWAHVLKT VDYGG AEWS LVRIYSGLLK RGDTVRILDT SQSESRQKRQ LHDISKTETS NEDEDSKTET PSCEVEEIGL LGGRYVYPVH EAHKGQ IVL IKGISSAYIK SATLYSVKSK EDMKQLKFFK PLDYITEAVF KIVLQPLLPR ELPKLLDALN KISKYYPGVI IKVEESG EH VILGNGELYM DCLLYDLRAS YAKIEIKISD PLTVFSESCS NESFASIPVS NSISRLGEEN LPGLSISVAA EPMDSKMI Q DLSRNTLGKG QNCLDIDGIM DNPRKLSKIL RTEYGWDSLA SRNVWSFYNG NVLINDTLPD EISPELLSKY KEQIIQGFY WAVKEGPLAE EPIYGVQYKL LSISVPSDVN IDVMKSQIIP LMKKACYVGL LTAIPILLEP IYEVDITVHA PLLPIVEELM KKRRGSRIY KTIKVAGTPL LEVRGQVPVI ESAGFETDLR LSTNGLGMCQ LYFWHKIWRK VPGDVLDKDA FIPKLKPAPI N SLSRDFVM KTRRRKGIST GGFMSNDGPT LEKYISAELY AQLRENGLVP

UniProtKB: Pre-mRNA-splicing factor SNU114

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Macromolecule #29: GUANOSINE-5'-TRIPHOSPHATE

MacromoleculeName: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 29 / Number of copies: 1 / Formula: GTP
Molecular weightTheoretical: 523.18 Da
Chemical component information

ChemComp-GTP:
GUANOSINE-5'-TRIPHOSPHATE / GTP, energy-carrying molecule*YM

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Experimental details

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Structure determination

Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.2 mg/mL
BufferpH: 7.9 / Component - Concentration: 1.0 mM / Component - Name: DTT
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 6 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 70 sec. / Pretreatment - Atmosphere: OTHER
Details: Grids are made of holey carbon, carbon-coated and glow discharged in N-amylamine.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Quantum
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Digitization - Frames/image: 1-20 / Number real images: 2477 / Average exposure time: 16.0 sec. / Average electron dose: 38.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsCalibrated magnification: 35714 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.0 mm / Nominal defocus max: 3.5 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 81000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 473827
Startup modelType of model: EMDB MAP
EMDB ID:

2966


Details: Startup model was 60 Angstrom low-pass filtered.
Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 1.4) / Number images used: 140155
Initial angle assignmentType: OTHER / Software - Name: RELION (ver. 1.4)
Final angle assignmentType: OTHER / Software - Name: RELION (ver. 1.4)
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementSpace: RECIPROCAL
Output model

PDB-5gan:
The overall structure of the yeast spliceosomal U4/U6.U5 tri-snRNP at 3.7 Angstrom

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