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- EMDB-3542: Structure of a spliceosome remodeled for exon ligation -

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Basic information

Entry
Database: EMDB / ID: EMD-3542
TitleStructure of a spliceosome remodeled for exon ligation
Map dataMap of Saccharomyces cerevisiae spliceosome C-star complex generated by focussed refinement on U2 snRNP peripheral regions.
Sample
  • Complex: Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-mediated remodeling
    • RNA: x 5 types
    • Protein or peptide: x 25 types
  • RNA: x 1 types
  • Protein or peptide: x 3 types
  • Ligand: x 5 types
Biological speciesSaccharomyces cerevisiae (brewer's yeast) / Baker's yeast (brewer's yeast)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.6 Å
AuthorsFica SM / Oubridge C / Galej WP / Wilkinson ME / Newman AJ / Bai X-C / Nagai K
CitationJournal: Nature / Year: 2016
Title: Cryo-EM structure of the spliceosome immediately after branching.
Authors: Wojciech P Galej / Max E Wilkinson / Sebastian M Fica / Chris Oubridge / Andrew J Newman / Kiyoshi Nagai /
Abstract: Precursor mRNA (pre-mRNA) splicing proceeds by two consecutive transesterification reactions via a lariat-intron intermediate. Here we present the 3.8 Å cryo-electron microscopy structure of the ...Precursor mRNA (pre-mRNA) splicing proceeds by two consecutive transesterification reactions via a lariat-intron intermediate. Here we present the 3.8 Å cryo-electron microscopy structure of the spliceosome immediately after lariat formation. The 5'-splice site is cleaved but remains close to the catalytic Mg site in the U2/U6 small nuclear RNA (snRNA) triplex, and the 5'-phosphate of the intron nucleotide G(+1) is linked to the branch adenosine 2'OH. The 5'-exon is held between the Prp8 amino-terminal and linker domains, and base-pairs with U5 snRNA loop 1. Non-Watson-Crick interactions between the branch helix and 5'-splice site dock the branch adenosine into the active site, while intron nucleotides +3 to +6 base-pair with the U6 snRNA ACAGAGA sequence. Isy1 and the step-one factors Yju2 and Cwc25 stabilize docking of the branch helix. The intron downstream of the branch site emerges between the Prp8 reverse transcriptase and linker domains and extends towards the Prp16 helicase, suggesting a plausible mechanism of remodelling before exon ligation.
History
DepositionDec 19, 2016-
Header (metadata) releaseJan 11, 2017-
Map releaseJan 18, 2017-
UpdateJan 25, 2017-
Current statusJan 25, 2017Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.028
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.028
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_3542.png

Downloads & links

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Map

FileDownload / File: emd_3542.map.gz / Format: CCP4 / Size: 266.8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationMap of Saccharomyces cerevisiae spliceosome C-star complex generated by focussed refinement on U2 snRNP peripheral regions.
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.43 Å/pix.
x 412 pix.
= 589.16 Å		1.43 Å/pix.
x 412 pix.
= 589.16 Å		1.43 Å/pix.
x 412 pix.
= 589.16 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: 0.028 / Movie #1: 0.028
Minimum - Maximum-0.01757239 - 0.07314288
Average (Standard dev.)0.00026389147 (±0.002914196)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions412412412
Spacing412412412
CellA=B=C: 589.16 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.431.431.43
M x/y/z412412412
origin x/y/z0.0000.0000.000
length x/y/z589.160589.160589.160
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS412412412
D min/max/mean-0.0180.0730.000

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Supplemental data

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Sample components

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Entire : Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-...

EntireName: Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-mediated remodeling
Components
  • Complex: Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-mediated remodeling
    • RNA: Intron of UBC4 pre-mRNA
    • RNA: 5'exon of UBC4 pre-mRNA
    • RNA: U2 snRNA
    • RNA: U6 snRNA
    • RNA: U5 snRNA
    • Protein or peptide: Pre-mRNA-splicing factor 8
    • Protein or peptide: Pre-mRNA-splicing factor SNU114
    • Protein or peptide: Pre-mRNA-splicing factor CWC22
    • Protein or peptide: Pre-mRNA-splicing factor PRP46
    • Protein or peptide: Pre-mRNA-processing protein 45
    • Protein or peptide: Pre-mRNA-splicing factor BUD31
    • Protein or peptide: Pre-mRNA-splicing factor CEF1
    • Protein or peptide: Pre-mRNA-splicing factor CWC15
    • Protein or peptide: Pre-mRNA-splicing factor CWC21
    • Protein or peptide: Pre-mRNA-splicing factor CLF1
    • Protein or peptide: Pre-mRNA-splicing factor SYF1
    • Protein or peptide: Pre-mRNA-splicing factor 18
    • Protein or peptide: Pre-mRNA-splicing factor SLU7
    • Protein or peptide: Pre-mRNA-splicing factor SYF2
    • Protein or peptide: Small nuclear ribonucleoprotein-associated protein B
    • 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: Small nuclear ribonucleoprotein Sm D1
    • Protein or peptide: Small nuclear ribonucleoprotein Sm D2
    • Protein or peptide: Pre-mRNA-splicing factor CWC2
    • Protein or peptide: Pre-mRNA-splicing factor SLT11
    • Protein or peptide: Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP22
    • Protein or peptide: Pre-mRNA-processing factor 17
  • RNA: 3'exon of UBC4 pre-mRNA bound to Prp22 helicase
  • Protein or peptide: U2 small nuclear ribonucleoprotein A'
  • Protein or peptide: U2 small nuclear ribonucleoprotein B''
  • Protein or peptide: Unknown protein
  • Ligand: MAGNESIUM ION
  • Ligand: POTASSIUM ION
  • Ligand: INOSITOL HEXAKISPHOSPHATE
  • Ligand: GUANOSINE-5'-TRIPHOSPHATE
  • Ligand: ZINC ION

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Supramolecule #1: Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-...

SupramoleculeName: Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-mediated remodeling
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#30
Details: Splicing extract was prepared from Slu7-TAPS yeast strains. An in vitro transcribed yeast UBC4 pre-mRNA substrate (with 2 x MS2 bacteriophage coat protein-binding stem loops at the 5' end ...Details: Splicing extract was prepared from Slu7-TAPS yeast strains. An in vitro transcribed yeast UBC4 pre-mRNA substrate (with 2 x MS2 bacteriophage coat protein-binding stem loops at the 5' end and with a 2'-deoxy substitution at the 3'-splice site sequence UAG sequence (UA-2'dG) was pre-bound to an MS2-maltose binding protein fusion protein. This substrate-protein complex was added to the splicing extract. The splicing reaction proceeded through the first step but the second step was blocked by the deoxy substitution. Substrate-bound spliceosomes from the splicing extract were purified on amylose resin and eluted with maltose. Subsequently the spliceosomes were captured on streptactin resin and eluted with desthiobiotin. Purified spliceosomes were concentrated in 20 mM HEPES KOH pH 7.9, 100 mM KCl, 0.25 mM EDTA.

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Macromolecule #1: Intron of UBC4 pre-mRNA

MacromoleculeName: Intron of UBC4 pre-mRNA / type: rna / ID: 1 / Number of copies: 1
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 30.183746 KDa
SequenceString:
GUAUGUCUAA AACUAUGGCC ACGUUUCAAA UGCGUGCUUU UUUUUUAAAA CUUAUGCUCU UAUUUACUAA CAAAAUCAAC AUGCUAUUG AACUAG

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Macromolecule #2: 5'exon of UBC4 pre-mRNA

MacromoleculeName: 5'exon of UBC4 pre-mRNA / type: rna / ID: 2 / Number of copies: 1
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 6.518976 KDa
SequenceString:
GAAGUAAGUG AUCUAGAAAG

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Macromolecule #3: U2 snRNA

MacromoleculeName: U2 snRNA / type: rna / ID: 3 / Number of copies: 1
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 376.267406 KDa
SequenceString: ACGAAUCUCU UUGCCUUUUG GCUUAGAUCA AGUGUAGUAU CUGUUCUUUU CAGUGUAACA ACUGAAAUGA CCUCAAUGAG GCUCAUUAC CUUUUAAUUU GUUACAAUAC ACAUUUUUUG GCACCCAAAA UAAUAAAAUG GACGGGAAGA GACUUUUUAA G CAAGUUGU ...String:
ACGAAUCUCU UUGCCUUUUG GCUUAGAUCA AGUGUAGUAU CUGUUCUUUU CAGUGUAACA ACUGAAAUGA CCUCAAUGAG GCUCAUUAC CUUUUAAUUU GUUACAAUAC ACAUUUUUUG GCACCCAAAA UAAUAAAAUG GACGGGAAGA GACUUUUUAA G CAAGUUGU UUUCCGCUAA UGUCAGGUCU CACUACUUUU UGCUGCUAUU UUUCUUCGCU CAUGGUUUCU UCAUAAGGCG UU UUUAUGA UGGUUUUUCG AAAUUGGUUU UUGAGACGAC GGUUGCUCAA GGUUAUUGUU UUUGUUUUCU UCUGGUUGUU UUC UAUUUU CUUUUUUUUA GCUUUCUGUU UCUCCCUUAG UUUGGCUUUU UGCUUCAUAC UCUUCCCUGU CUUUCCGAGC CGUU UAUGU CCAACGCGGG AUUUGGUUUU UCUUUAUCGA UGGGAAGAAA UGGUGCUAUA GUAGGUUGGG AGAUAAUAUU UAUGG UAUG GGGUGCUAGU GCGGAUGGGG CGCUCUUAUU GUUGAUUUCU UCGCUCGUCU UCUUUUUCUG GUGGCGCUGC AAGAGG AAG UUUUUCGACU UUGUUAUGAU UUUUGGUUUG CAAGGAAAGG UGUCUUACGA UUCUUUUUUU GAUGUAAUAG GAUAAGC UU GCUUAUCCCC CAAGUAUCGG CCAAAGUUGU UGAUUUUCCU UUUGAAGUGU CCUCGGUUUG AGGGGGUGUA GGGUGGGG U UGGUCUACAA UAAGAGUGUU CCAUUGUUAA CGUGCUGGCG UCUUUUACUA UAUUUUUUUU CCCAGUUUAU UUUGUGCUU AUUUUCUCAU UGAGGAGAAG GAGCUCUUCU CGCAGGAUAU AAAUGGAGGU UUGCUAAAGG GGAGGAGAUG UGUUUGUGAG AAUACUGCU GAGAGAGUUC UGGAAGAGAA AAAAAGGAGG CAAUGGAAGG CGUUUGCUGG GAAAAGAGAA GAGCCAUGAC U GCAUCUGU UGUUUCAAGG CCAGUUUUAU UAACCGCCUA UGUCAUAGAG GCGUUUUUUU UGGAGGGAUU UGAAGAAUGC CG GCGGCAU CAAGAAACGG ACUUGAUGGU UGACGCCUGU UUUUAAAGUU AGAGACGUCG CGACCCUCGC ACUUGUGGAG UCG UUCUUG ACUUUUACUU UGGUCGCUUG AUGUUUCUCU CGUCUUCCCG UUCGCUCUU

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Macromolecule #4: U6 snRNA

MacromoleculeName: U6 snRNA / type: rna / ID: 4 / Number of copies: 1
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 35.883176 KDa
SequenceString:
GUUCGCGAAG UAACCCUUCG UGGACAUUUG GUCAAUUUGA AACAAUACAG AGAUGAUCAG CAGUUCCCCU GCAUAAGGAU GAACCGUUU UACAAAGAGA UUUAUUUCGU UUU

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Macromolecule #5: U5 snRNA

MacromoleculeName: U5 snRNA / type: rna / ID: 5 / Number of copies: 1
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 57.444875 KDa
SequenceString:
AAGCAGCUUU ACAGAUCAAU GGCGGAGGGA GGUCAACAUC AAGAACUGUG GGCCUUUUAU UGCCUAUAGA ACUUAUAACG AACAUGGUU CUUGCCUUUU ACCAGAACCA UCCGGGUGUU GUCUCCAUAG AAACAGGUAA AGCUGUCCGU UACUGUGGGC U UGCCAUAU UUUUUGGAAC U

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Macromolecule #34: 3'exon of UBC4 pre-mRNA bound to Prp22 helicase

MacromoleculeName: 3'exon of UBC4 pre-mRNA bound to Prp22 helicase / type: rna / ID: 34 / Number of copies: 1
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 873.54 Da
SequenceString:
UUU

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Macromolecule #6: Pre-mRNA-splicing factor 8

MacromoleculeName: Pre-mRNA-splicing factor 8 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
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

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Macromolecule #7: Pre-mRNA-splicing factor SNU114

MacromoleculeName: Pre-mRNA-splicing factor SNU114 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 114.159039 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 NEDEDEDDET 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 SRNVWSFYVG 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

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Macromolecule #8: Pre-mRNA-splicing factor CWC22

MacromoleculeName: Pre-mRNA-splicing factor CWC22 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 67.386062 KDa
SequenceString: MSTATIQDED IKFQRENWEM IRSHVSPIIS NLTMDNLQES HRDLFQVNIL IGRNIICKNV VDFTLNKQNG RLIPALSALI ALLNSDIPD IGETLAKELM LMFVQQFNRK DYVSCGNILQ CLSILFLYDV IHEIVILQIL LLLLEKNSLR LVIAVMKICG W KLALVSKK ...String:
MSTATIQDED IKFQRENWEM IRSHVSPIIS NLTMDNLQES HRDLFQVNIL IGRNIICKNV VDFTLNKQNG RLIPALSALI ALLNSDIPD IGETLAKELM LMFVQQFNRK DYVSCGNILQ CLSILFLYDV IHEIVILQIL LLLLEKNSLR LVIAVMKICG W KLALVSKK THDMIWEKLR YILQTQELSS TLRESLETLF EIRQKDYKSG SQGLFILDPT SYTVHTHSYI VSDEDEANKE LG NFEKCEN FNELTMAFDT LRQKLLINNT SDTNEGSNSQ LQIYDMTSTN DVEFKKKIYL VLKSSLSGDE AAHKLLKLKI ANN LKKSVV DIIIKSSLQE STFSKFYSIL SERMITFHRS WQTAYNETFE QNYTQDIEDY ETDQLRILGK FWGHLISYEF LPMD CLKII KLTEEESCPQ GRIFIKFLFQ ELVNELGLDE LQLRLNSSKL DGMFPLEGDA EHIRYSINFF TAIGLGLLTE DMRSR LTII QEVEDAEEEE KKLREEEELE KLRKKARESQ PTQGPKIHES RLFLQKDTRE NSRSRSPFTV ETRKRARSRT PPRGSR NHR NRSRTPPARR QRHR

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Macromolecule #9: Pre-mRNA-splicing factor PRP46

MacromoleculeName: Pre-mRNA-splicing factor PRP46 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 50.771289 KDa
SequenceString: MDGNDHKVEN LGDVDKFYSR IRWNNQFSYM ATLPPHLQSE MEGQKSLLMR YDTYRKESSS FSGEGKKVTL QHVPTDFSEA SQAVISKKD HDTHASAFVN KIFQPEVAEE LIVNRYEKLL SQRPEWHAPW KLSRVINGHL GWVRCVAIDP VDNEWFITGS N DTTMKVWD ...String:
MDGNDHKVEN LGDVDKFYSR IRWNNQFSYM ATLPPHLQSE MEGQKSLLMR YDTYRKESSS FSGEGKKVTL QHVPTDFSEA SQAVISKKD HDTHASAFVN KIFQPEVAEE LIVNRYEKLL SQRPEWHAPW KLSRVINGHL GWVRCVAIDP VDNEWFITGS N DTTMKVWD LATGKLKTTL AGHVMTVRDV AVSDRHPYLF SVSEDKTVKC WDLEKNQIIR DYYGHLSGVR TVSIHPTLDL IA TAGRDSV IKLWDMRTRI PVITLVGHKG PINQVQCTPV DPQVVSSSTD ATVRLWDVVA GKTMKVLTHH KRSVRATALH PKE FSVASA CTDDIRSWGL AEGSLLTNFE SEKTGIINTL SINQDDVLFA GGDNGVLSFY DYKSGHKYQS LATREMVGSL EGER SVLCS TFDKTGLRLI TGEADKSIKI WKQDETATKE SEPGLAWNPN LSAKRF

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Macromolecule #10: Pre-mRNA-processing protein 45

MacromoleculeName: Pre-mRNA-processing protein 45 / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 42.548727 KDa
SequenceString: MFSNRLPPPK HSQGRVSTAL SSDRVEPAIL TDQIAKNVKL DDFIPKRQSN FELSVPLPTK AEIQECTART KSYIQRLVNA KLANSNNRA SSRYVTETHQ APANLLLNNS HHIEVVSKQM DPLLPRFVGK KARKVVAPTE NDEVVPVLHM DGSNDRGEAD P NEWKIPAA ...String:
MFSNRLPPPK HSQGRVSTAL SSDRVEPAIL TDQIAKNVKL DDFIPKRQSN FELSVPLPTK AEIQECTART KSYIQRLVNA KLANSNNRA SSRYVTETHQ APANLLLNNS HHIEVVSKQM DPLLPRFVGK KARKVVAPTE NDEVVPVLHM DGSNDRGEAD P NEWKIPAA VSNWKNPNGY TVALERRVGK ALDNENNTIN DGFMKLSEAL ENADKKARQE IRSKMELKRL AMEQEMLAKE SK LKELSQR ARYHNGTPQT GAIVKPKKQT STVARLKELA YSQGRDVSEK IILGAAKRSE QPDLQYDSRF FTRGANASAK RHE DQVYDN PLFVQQDIES IYKTNYEKLD EAVNVKSEGA SGSHGPIQFT KAESDDKSDN YGA

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Macromolecule #11: Pre-mRNA-splicing factor BUD31

MacromoleculeName: Pre-mRNA-splicing factor BUD31 / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 18.484502 KDa
SequenceString:
MPRIKTRRSK PAPDGFEKIK PTLTDFEIQL RDAQKDKSSK LAAKSNEQLW EIMQLHHQRS RYIYTLYYKR KAISKDLYDW LIKEKYADK LLIAKWRKTG YEKLCCLRCI QKNETNNGST CICRVPRAQL EEEARKKGTQ VSFHQCVHCG CRGCASTD

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Macromolecule #12: Pre-mRNA-splicing factor CEF1

MacromoleculeName: Pre-mRNA-splicing factor CEF1 / type: protein_or_peptide / ID: 12 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 67.837773 KDa
SequenceString: MPPVPIYVKG GVWTNVEDQI LKAAVQKYGT HQWSKVASLL QKKTARQSEL RWNEYLNPKL NFTEFSKEED AQLLDLAREL PNQWRTIAD MMARPAQVCV ERYNRLLESE DSGGAALSTG VTDLKAGDIN PNAETQMARP DNGDLEDEEK EMLAEARARL L NTQGKKAT ...String:
MPPVPIYVKG GVWTNVEDQI LKAAVQKYGT HQWSKVASLL QKKTARQSEL RWNEYLNPKL NFTEFSKEED AQLLDLAREL PNQWRTIAD MMARPAQVCV ERYNRLLESE DSGGAALSTG VTDLKAGDIN PNAETQMARP DNGDLEDEEK EMLAEARARL L NTQGKKAT RKIRERMLEE SKRIAELQKR RELKQAGINV AIKKPKKKYG TDIDYNEDIV YEQAPMPGIY DTSTEDRQIK KK FEQFERK VNRKGLDGNK DKPSKKNKDK KRKHDENEHV EKAALGESTT LTDEYKKPKL ILSAPGTKQG KVTYKKKLES KRQ KLIEAQ ATGTVLTPKE LLPHDSGQED NERSNIKSGK QLKSRIRKFL VQMFASLPSP KNDFEIVLSE DEKEEDAEIA EYEK EFENE RAMNEEDNFI EPPSQNDAPR VSLVAVPLAY STLPIPEFKN NPQSAIDNKY NLLVANAINK EPHMVPEDTV DFLKE VESR MQHITQGRTS MKIQFKTAMP PTEVLLESIQ SKVESIEQLQ RKLQHVQPLE QQNNEMCSTL CHHSLPALIE GQRKYY ADY YAYRQEIRSL EGRRKRLQAM LNSSSSI

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Macromolecule #13: Pre-mRNA-splicing factor CWC15

MacromoleculeName: Pre-mRNA-splicing factor CWC15 / type: protein_or_peptide / ID: 13 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 19.975195 KDa
SequenceString:
MTTSHRPQLE ARSGAKAAAY TPTGIEHARL LPGHTTLKYR KFKEEENLRA NCAQEDRSND KSLEEAVMNE EKQDVVGSGN LQETRSEKD QKDSLQELLV TQKNKVEDKA ELEGNEQLKG GNSSRRSWRK GTAFGRHKVT KETNIKEHAT KKSASGYIND M TKSEYHQE FLHKHVR

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Macromolecule #14: Pre-mRNA-splicing factor CWC21

MacromoleculeName: Pre-mRNA-splicing factor CWC21 / type: protein_or_peptide / ID: 14 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 15.793596 KDa
SequenceString:
MSYNGIGLKS AKGSSTSGHV QRSLASNNRR RPQGSQQQRQ QRQNAIKKAS HDKASRPLAV QKQIETHMEK REIEVQVSEL RDRLEEEET LSEEQIDKKC EALRAKLTNE WQEQQRMSSL YTPRKARLTE EQHRHE

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Macromolecule #15: Pre-mRNA-splicing factor CLF1

MacromoleculeName: Pre-mRNA-splicing factor CLF1 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 82.555859 KDa
SequenceString: MDTLEPTAVD THVSAEQILR DVYKKGQKAR GSTNIDILDL EELREYQRRK RTEYEGYLKR NRLDMGQWIR YAQFEIEQHD MRRARSIFE RALLVDSSFI PLWIRYIDAE LKVKCINHAR NLMNRAISTL PRVDKLWYKY LIVEESLNNV EIVRSLYTKW C SLEPGVNA ...String:
MDTLEPTAVD THVSAEQILR DVYKKGQKAR GSTNIDILDL EELREYQRRK RTEYEGYLKR NRLDMGQWIR YAQFEIEQHD MRRARSIFE RALLVDSSFI PLWIRYIDAE LKVKCINHAR NLMNRAISTL PRVDKLWYKY LIVEESLNNV EIVRSLYTKW C SLEPGVNA WNSFVDFEIR QKNWNGVREI YSKYVMAHPQ MQTWLKWVRF ENRHGNTEFT RSVYSLAIDT VANLQNLQIW SD MEVAKLV NSFAHWEAAQ QEYERSSALY QIAIEKWPSN QLLKAGLLDF EKQFGDINSI EETISYKRKM EYETILSNNA YDY DTWWLY LDLISESFPK QIMQTFEKAI VDSRPKELSK NVQWKRYIYL WMRYICYVEL ELENSLLEEE LFQRLIDDII PHKH FTFSK IWLMYAKFLI RHDDVPKARK ILGKAIGLCP KAKTFKGYIE LEVKLKEFDR VRKIYEKFIE FQPSDLQIWS QYGEL EENL GDWDRVRGIY TIALDENSDF LTKEAKIVLL QKYITFETES QEFEKARKLY RRYLELNQYS PQSWIEFAMY QTSTPT EQQ LLDLAKLQSE NVDEDIEFEI TDENKLEARK VFEEAIVFFK EKDDKQGRLS ILEALKDYEE TYGTELDQET VKKRFPK VI KKVRLQNGVE EEFVDYIFPD DIDDDKPKPS KFLELAKKWK QEQAL

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Macromolecule #16: Pre-mRNA-splicing factor SYF1

MacromoleculeName: Pre-mRNA-splicing factor SYF1 / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 100.344016 KDa
SequenceString: MSAYIAMKGV ITNVDENIRN DEDVAFEYEI QKTPQNILTW KRYIEYWKEE GRTDKQIRWL YERFCSQFVT DTSIWEDYIR WESTKEVVE TSRIFWLFQR CLKSCVRDCD RICLSYLELA IEQYDLAMIR HALASSLMKM EREMHRKVWD PVIKFVEEKV L PLTQLDST ...String:
MSAYIAMKGV ITNVDENIRN DEDVAFEYEI QKTPQNILTW KRYIEYWKEE GRTDKQIRWL YERFCSQFVT DTSIWEDYIR WESTKEVVE TSRIFWLFQR CLKSCVRDCD RICLSYLELA IEQYDLAMIR HALASSLMKM EREMHRKVWD PVIKFVEEKV L PLTQLDST QEDEEESTDE AELINVLLVK GFTKGGFISE EISENGSRGD IWSSHILERY LKVAPQQKRN ESLATLALTR DN ITIKSVY EKYLPQDENS GKYLPSSELP FELNFNYLAS LEKLGLDNQY EEFMRQMNGI YPDKWLFLIL SLAKYYISRG RLD SCGDLL KKSLQQTLRY SDFDRIYNFY LLFEQECSQF ILGKLKENDS KFFNQKDWTE KLQAHMATFE SLINLYDIYL NDVA LRQDS NLVETWMKRV SLQKSAAEKC NVYSEAILKI DPRKVGTPGS FGRLWCSYGD LYWRSNAIST ARELWTQSLK VPYPY IEDL EEIYLNWADR ELDKEGVERA FSILEDALHV PTNPEILLEK YKNGHRKIPA QTVLFNSLRI WSKYIDYLEA YCPKDA NSS DKIFNKTKMA YNTVIDLRLI TPAMAENFAL FLQNHYEVME SFQVYEKTIP LFPPEIQYEL WIEYLEVATS HQLSSLS PE HIRFLFEKAL KNLCSNGIDC KTIFIAYSVF EERISGLISK SIEILRRGAV IGTVSVSTHL ESRLQLWRMC ISKAESTL G PSVTRELYQE CIQILPNSKA VEFVIKFSDF ESSIGETIRA REILAYGAKL LPPSRNTELW DSFEIFELKH GDKETYKDM LKMKKVLESN MLIDSASVSH EEGNINFVAA ATSHAPNSHT LTQSTSSYSI NPDEIELDI

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Macromolecule #17: Pre-mRNA-splicing factor 18

MacromoleculeName: Pre-mRNA-splicing factor 18 / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 28.414391 KDa
SequenceString: MDLDLASILK GEISKKKKEL ANSKGVQPPC TEKFQPHESA NIDETPRQVE QESTDEENLS DNQSDDIRTT ISKLENRPER IQEAIAQDK TISVIIDPSQ IGSTEGKPLL SMKCNLYIHE ILSRWKASLE AYHPELFLDT KKALFPLLLQ LRRNQLAPDL L ISLATVLY ...String:
MDLDLASILK GEISKKKKEL ANSKGVQPPC TEKFQPHESA NIDETPRQVE QESTDEENLS DNQSDDIRTT ISKLENRPER IQEAIAQDK TISVIIDPSQ IGSTEGKPLL SMKCNLYIHE ILSRWKASLE AYHPELFLDT KKALFPLLLQ LRRNQLAPDL L ISLATVLY HLQQPKEINL AVQSYMKLSI GNVAWPIGVT SVGIHARSAH SKIQGGRNAA NIMIDERTRL WITSIKRLIT FE EWYTSNH DSLA

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Macromolecule #18: Pre-mRNA-splicing factor SLU7

MacromoleculeName: Pre-mRNA-splicing factor SLU7 / type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 44.722875 KDa
SequenceString: MNNNSRNNEN RSTINRNKRQ LQQAKEKNEN IHIPRYIRNQ PWYYKDTPKE QEGKKPGNDD TSTAEGGEKS DYLVHHRQKA KGGALDIDN NSEPKIGMGI KDEFKLIRPQ KMSVRDSHSL SFCRNCGEAG HKEKDCMEKP RKMQKLVPDL NSQKNNGTVL V RATDDDWD ...String:
MNNNSRNNEN RSTINRNKRQ LQQAKEKNEN IHIPRYIRNQ PWYYKDTPKE QEGKKPGNDD TSTAEGGEKS DYLVHHRQKA KGGALDIDN NSEPKIGMGI KDEFKLIRPQ KMSVRDSHSL SFCRNCGEAG HKEKDCMEKP RKMQKLVPDL NSQKNNGTVL V RATDDDWD SRKDRWYGYS GKEYNELISK WERDKRNKIK GKDKSQTDET LWDTDEEIEL MKLELYKDSV GSLKKDDADN SQ LYRTSTR LREDKAAYLN DINSTESNYD PKSRLYKTET LGAVDEKSKM FRRHLTGEGL KLNELNQFAR SHAKEMGIRD EIE DKEKVQ HVLVANPTKY EYLKKKREQE ETKQPKIVSI GDLEARKVDG TKQSEEQRNH LKDLYG

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Macromolecule #19: Pre-mRNA-splicing factor SYF2

MacromoleculeName: Pre-mRNA-splicing factor SYF2 / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 24.850719 KDa
SequenceString: MDFYKLDEKL KELKRKRVDV SIKSRKLADR EIQEVSANRK PRVYSMEDVN DADESVGDTE SPEKEKAFHY TVQEYDAWER RHPQGKTGQ SQRGGISYDQ LAKLSYEKTL RNLATQTQNS SKQDSSADEE DNKNVPKKGR IGKVQKDTKT GKITIADDDK L VNKLAVSL ...String:
MDFYKLDEKL KELKRKRVDV SIKSRKLADR EIQEVSANRK PRVYSMEDVN DADESVGDTE SPEKEKAFHY TVQEYDAWER RHPQGKTGQ SQRGGISYDQ LAKLSYEKTL RNLATQTQNS SKQDSSADEE DNKNVPKKGR IGKVQKDTKT GKITIADDDK L VNKLAVSL QSESKKRYEA RKRQMQNAKT LYGVESFIND KNKQFNEKLS RESKGSE

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Macromolecule #20: Small nuclear ribonucleoprotein-associated protein B

MacromoleculeName: Small nuclear ribonucleoprotein-associated protein B / type: protein_or_peptide / ID: 20 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
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

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Macromolecule #21: Small nuclear ribonucleoprotein Sm D3

MacromoleculeName: Small nuclear ribonucleoprotein Sm D3 / type: protein_or_peptide / ID: 21 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 11.240139 KDa
SequenceString:
MTMNGIPVKL LNEAQGHIVS LELTTGATYR GKLVESEDSM NVQLRDVIAT EPQGAVTHMD QIFVRGSQIK FIVVPDLLKN APLFKKNSS RPMPPIRGPK RR

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Macromolecule #22: Small nuclear ribonucleoprotein E

MacromoleculeName: Small nuclear ribonucleoprotein E / type: protein_or_peptide / ID: 22 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 10.385098 KDa
SequenceString:
MSNKVKTKAM VPPINCIFNF LQQQTPVTIW LFEQIGIRIK GKIVGFDEFM NVVIDEAVEI PVNSADGKED VEKGTPLGKI LLKGDNITL ITSAD

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Macromolecule #23: Small nuclear ribonucleoprotein F

MacromoleculeName: Small nuclear ribonucleoprotein F / type: protein_or_peptide / ID: 23 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 9.669945 KDa
SequenceString:
MSESSDISAM QPVNPKPFLK GLVNHRVGVK LKFNSTEYRG TLVSTDNYFN LQLNEAEEFV AGVSHGTLGE IFIRCNNVLY IRELPN

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Macromolecule #24: Small nuclear ribonucleoprotein G

MacromoleculeName: Small nuclear ribonucleoprotein G / type: protein_or_peptide / ID: 24 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 8.490809 KDa
SequenceString:
MVSTPELKKY MDKKILLNIN GSRKVAGILR GYDIFLNVVL DDAMEINGED PANNHQLGLQ TVIRGNSIIS LEALDAI

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Macromolecule #25: Small nuclear ribonucleoprotein Sm D1

MacromoleculeName: Small nuclear ribonucleoprotein Sm D1 / type: protein_or_peptide / ID: 25 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 16.296798 KDa
SequenceString:
MKLVNFLKKL RNEQVTIELK NGTTVWGTLQ SVSPQMNAIL TDVKLTLPQP RLNKLNSNGI AMASLYLTGG QQPTASDNIA SLQYINIRG NTIRQIILPD SLNLDSLLVD QKQLNSLRRS GQIANDPSKK RRRDFGAPAN KRPRRGL

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Macromolecule #26: Small nuclear ribonucleoprotein Sm D2

MacromoleculeName: Small nuclear ribonucleoprotein Sm D2 / type: protein_or_peptide / ID: 26 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 12.876066 KDa
SequenceString:
MSSQIIDRPK HELSRAELEE LEEFEFKHGP MSLINDAMVT RTPVIISLRN NHKIIARVKA FDRHCNMVLE NVKELWTEKK GKNVINRER FISKLFLRGD SVIVVLKTPV E

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Macromolecule #27: Pre-mRNA-splicing factor CWC2

MacromoleculeName: Pre-mRNA-splicing factor CWC2 / type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 38.486562 KDa
SequenceString: MTSWRDKSAK VQVKESELPS SIPAQTGLTF NIWYNKWSQG FAGNTRFVSP FALQPQLHSG KTRGDNDGQL FFCLFFAKGM CCLGPKCEY LHHIPDEEDI GKLALRTEVL DCFGREKFAD YREDMGGIGS FRKKNKTLYV GGIDGALNSK HLKPAQIESR I RFVFSRLG ...String:
MTSWRDKSAK VQVKESELPS SIPAQTGLTF NIWYNKWSQG FAGNTRFVSP FALQPQLHSG KTRGDNDGQL FFCLFFAKGM CCLGPKCEY LHHIPDEEDI GKLALRTEVL DCFGREKFAD YREDMGGIGS FRKKNKTLYV GGIDGALNSK HLKPAQIESR I RFVFSRLG DIDRIRYVES KNCGFVKFKY QANAEFAKEA MSNQTLLLPS DKEWDDRREG TGLLVKWANE DPDPAAQKRL QE ELKLESL NMMVHLINNN TNSAGTEVNN KNNERLDRTF PEASVDNVKK RLLPLDNGME SDDFIEKLKK VKKNISRENI SSK PSVGKL GGPLLDYLSS DED

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Macromolecule #28: Pre-mRNA-splicing factor SLT11

MacromoleculeName: Pre-mRNA-splicing factor SLT11 / type: protein_or_peptide / ID: 28 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 40.98859 KDa
SequenceString: MNDEINEPPP NICEQCLGDE ANIRMTKIPQ GSECKICTLP FTLYHFKTSK RSNNIIKTLI CVRCATQRNI CQCCMLDSRW HIPIQLRDH LISLVNEENV MTEEAKNDMM KRFLSLKNVK LGGAQITSDP SEADNIVDKL KNILLRATSD GPSTPLIKNT T ALYKNEKG ...String:
MNDEINEPPP NICEQCLGDE ANIRMTKIPQ GSECKICTLP FTLYHFKTSK RSNNIIKTLI CVRCATQRNI CQCCMLDSRW HIPIQLRDH LISLVNEENV MTEEAKNDMM KRFLSLKNVK LGGAQITSDP SEADNIVDKL KNILLRATSD GPSTPLIKNT T ALYKNEKG ANEVKNLEKY ASVDISHILK KLPLNESFLK NPSTKSFFLY NIDASIPEWK ITDTVSQLLG IKKWKDGNSL SL IVNHKAK CGGLRFQSSE LGERFVSKIS ETLVTPKGLK RGVLLIDRFR IFIIPWSSGF SAASFGTNTA ENIKLSLSLN KLI QLELGL SFPTKSTDNA KNDKKKTSKK VHKDRSKKSK PRANKLTI

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Macromolecule #29: Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP22

MacromoleculeName: Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP22
type: protein_or_peptide / ID: 29 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA helicase
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 130.187359 KDa
SequenceString: MSDISKLIGA IVGSDDPVII EFVLNIINKS GNLQEFIRNI QKLDAGISYE DSIKMYNAFL GKQEEEKVRN KVKSSPLSQK INQVLKDDV NLDDPVVTEF VLSILNKSKS ITEFQEQLNL MQSGLDNETI FKIYQIASPP VMKEEVSVLP STKIPAKIEA K IEEEVQKI ...String:
MSDISKLIGA IVGSDDPVII EFVLNIINKS GNLQEFIRNI QKLDAGISYE DSIKMYNAFL GKQEEEKVRN KVKSSPLSQK INQVLKDDV NLDDPVVTEF VLSILNKSKS ITEFQEQLNL MQSGLDNETI FKIYQIASPP VMKEEVSVLP STKIPAKIEA K IEEEVQKI ESLDPSPVLH KVYEGKVRNI TTFGCFVQIF GTRMKNCDGL VHISEMSDQR TLDPHDVVRQ GQHIFVEVIK IQ NNGKISL SMKNIDQHSG EIRKRNTESV EDRGRSNDAH TSRNMKNKIK RRALTSPERW EIRQLIASGA ASIDDYPELK DEI PINTSY LTAKRDDGSI VNGNTEKVDS KLEEQQRDET DEIDVELNTD DGPKFLKDQQ VKGAKKYEMP KITKVPRGFM NRSA INGSN AIRDHREEKL RKKREIEQQI RKQQSFDDPT KNKKDSRNEI QMLKNQLIVT EWEKNRMNES ISYGKRTSLP ISAQR QTLP VYAMRSELIQ AVRDNQFLVI VGETGSGKTT QITQYLDEEG FSNYGMIGCT QPRRVAAVSV AKRVAEEVGC KVGHDV GYT IRFEDVTGPD TRIKYMTDGM LQREALLDPE MSKYSVIMLD EAHERTVATD VLFALLKKAA IKRPELKVIV TSATLNS AK FSEYFLNCPI INIPGKTFPV EVLYSQTPQM DYIEAALDCV IDIHINEGPG DILVFLTGQE EIDSCCEILY DRVKTLGD S IGELLILPVY SALPSEIQSK IFEPTPKGSR KVVFATNIAE TSITIDGIYY VVDPGFAKIN IYNARAGIEQ LIVSPISQA QANQRKGRAG RTGPGKCYRL YTESAFYNEM LENTVPEIQR QNLSHTILML KAMGINDLLK FDFMDPPPKN LMLNALTELY HLQSLDDEG KLTNLGKEMS LFPMDPTLSR SLLSSVDNQC SDEIVTIISM LSVQNVFYRP KDRQLEADSK KAKFHHPYGD H LTLLNVYT RWQQANYSEQ YCKTNFLHFR HLKRARDVKS QISMIFKKIG LKLISCHSDP DLIRKTFVSG FFMNAAKRDS QV GYKTING GTEVGIHPSS SLYGKEYEYV MYHSIVLTSR EYMSQVTSIE PQWLLEVAPH FYKAGDAESQ SRKKAKIIPL HNK FAKDQN SWRLSSIRQS RERALGIKR

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Macromolecule #30: Pre-mRNA-processing factor 17

MacromoleculeName: Pre-mRNA-processing factor 17 / type: protein_or_peptide / ID: 30 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 52.129707 KDa
SequenceString: MGLVDGYDTS SDSDLNFDEG KSVHEKKNGN LHEDTSYEPS SNNIHKRKSH FTKSELKRRR KTRKGDGPWG SWSSSDDETS QASETQKED QDIFVHALAE DNLDSEQIEV EEVSHFYGKS EKDYQGRGYL YPPNDVDVDL REERISFRCY LPKKVIRNYP G HPEGTTAL ...String:
MGLVDGYDTS SDSDLNFDEG KSVHEKKNGN LHEDTSYEPS SNNIHKRKSH FTKSELKRRR KTRKGDGPWG SWSSSDDETS QASETQKED QDIFVHALAE DNLDSEQIEV EEVSHFYGKS EKDYQGRGYL YPPNDVDVDL REERISFRCY LPKKVIRNYP G HPEGTTAL KFLPKTGHLI LSGGNDHTIK IWDFYHDYEC LRDFQGHNKP IKALRFTEDC QSFLSSSFDR SVKIWDTETG KV KTRLHLN STPADVESRP TNPHEFIVGL SNSKILHYDD RVSENQGLVQ TYDHHLSSIL ALKYFPDGSK FISSSEDKTV RIW ENQINV PIKQISDTAQ HSMPFLNVHP SQNYFCAQSM DNRIYSFSLK PKYKRHPKKI FKGHSSAGYG ISLAFSGDGR YICS GDSKS RLFTWDWNTS RLLNNINKPG NKPITQVDWH PQETSKVICS GAAGKIYVCD

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Macromolecule #31: U2 small nuclear ribonucleoprotein A'

MacromoleculeName: U2 small nuclear ribonucleoprotein A' / type: protein_or_peptide / ID: 31 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 27.232252 KDa
SequenceString: MKFTPSIVID APQYYVDHFN GKYNVDKCVI LRDLQLETDS ESMPSSLKHL TKPTHILDLT NNDLIMIPDL SRRDDIHTLL LGRNNIVEV DGRLLPMNVQ NLTLSNNSIR RFEDLQRLRR APRTLKNLTL IGNQVCHLAN YREHVLRLVP HLETLDFQNV T AEERKSAM ...String:
MKFTPSIVID APQYYVDHFN GKYNVDKCVI LRDLQLETDS ESMPSSLKHL TKPTHILDLT NNDLIMIPDL SRRDDIHTLL LGRNNIVEV DGRLLPMNVQ NLTLSNNSIR RFEDLQRLRR APRTLKNLTL IGNQVCHLAN YREHVLRLVP HLETLDFQNV T AEERKSAM SFPRQADGDT LGPVNTAIRD NGSRDKTMEI MNLVVSKMTV ERRNELKKQL AEATSLEEIA RLEKLLSGGV

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Macromolecule #32: U2 small nuclear ribonucleoprotein B''

MacromoleculeName: U2 small nuclear ribonucleoprotein B'' / type: protein_or_peptide / ID: 32 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 12.850944 KDa
SequenceString:
MVEPARKKQR IDRDTHHTVA EPVTEAKNTL YVSQLNEKIN MQRLRVNLFL LFATFGEVLK VSMNFKKQRG QAFITMRTID QASLAQISL NGERFFGKPL KVEFSKSETK TL

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Macromolecule #33: Unknown protein

MacromoleculeName: Unknown protein / type: protein_or_peptide / ID: 33 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Baker's yeast (brewer's yeast)
Molecular weightTheoretical: 5.805147 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)

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Macromolecule #35: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 35 / Number of copies: 3 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #36: POTASSIUM ION

MacromoleculeName: POTASSIUM ION / type: ligand / ID: 36 / Number of copies: 2 / Formula: K
Molecular weightTheoretical: 39.098 Da

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Macromolecule #37: INOSITOL HEXAKISPHOSPHATE

MacromoleculeName: INOSITOL HEXAKISPHOSPHATE / type: ligand / ID: 37 / Number of copies: 1 / Formula: IHP
Molecular weightTheoretical: 660.035 Da
Chemical component information

ChemComp-IHP:
INOSITOL HEXAKISPHOSPHATE

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Macromolecule #38: GUANOSINE-5'-TRIPHOSPHATE

MacromoleculeName: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 38 / 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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Macromolecule #39: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 39 / Number of copies: 6 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.3 mg/mL
BufferpH: 7.9
Component:
ConcentrationNameFormula
20.0 millimolarHepes.KOH pH 7.9
100.0 millimolarpotassium chlorideKCl
250.0 micromolarEDTA
1.0 % v/vglycerol
0.0025 % v/vNonidet P-40 (NP-40)

Details: NP-40 is also called IGEPAL CA-630
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY ARRAY / Support film - Film thickness: 6.0 nm / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 20.0 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK III
Details: 3.5 microlitres sample were applied to the grid, left for 25 seconds and then blotted for 3.0-3.5 seconds before plunging..

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Quantum energy filter, 20 eV slit width
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Number real images: 3596 / Average exposure time: 0.8 sec. / Average electron dose: 2.0 e/Å2
Details: Total dose: 40 electrons/Angstrom^2 over 16 seconds. 20 movie frames collected at 1.25 frames per second.
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 4.5 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: 350000
Details: Selected initial particles automatically using C complex 2D class averages, low-pass filtered to 20 Angstrom for automatic particle picking.
CTF correctionSoftware - Name: CTFFIND
Startup modelType of model: EMDB MAP
EMDB ID:

3539

Final reconstructionNumber classes used: 4 / Resolution.type: BY AUTHOR / Resolution: 4.6 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 1.4)
Details: A 3D reconstruction was obtained after refinement of a subset of particles obtained by classification with a mask around the N-terminus of Syf1 and the peripheral parts of the U2 snRNP (U2 Sm ring, Msl1, Lea1).
Number images used: 61107
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING / Software - Name: RELION (ver. 1.4)
Final 3D classificationNumber classes: 4 / Software - Name: RELION (ver. 1.4)
FSC plot (resolution estimation)

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Atomic model buiding 1

DetailsUsed secondary structure restraints generated in ProSMART and LibG for Refmac refinement.
RefinementSpace: RECIPROCAL / Protocol: FLEXIBLE FIT / Overall B value: 330 / Target criteria: Fourier Shell Correlation

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