Post-catalytic P complex spliceosome with 3' splice site docked

2025-07-09 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY EXPERIMENTAL_SUMMARY database_2 em_admin struct_ref _database_2.pdbx_DOI _database_2.pdbx_database_accession _em_admin.last_update _struct_ref.db_name DERIVED_CALCULATIONS pdbx_unobs_or_zero_occ_atoms pdbx_validate_close_contact struct_conn DERIVED_CALCULATIONS pdbx_validate_close_contact struct_conn struct_conn_type _struct_conn_type.id OTHER atom_sites _atom_sites.fract_transf_matrix[1][1] _atom_sites.fract_transf_matrix[2][2] _atom_sites.fract_transf_matrix[3][3] STRUCTURE_SUMMARY atom_site chem_comp entity pdbx_entity_nonpoly pdbx_nonpoly_scheme struct_conn struct_conn_type struct_site _atom_site.Cartn_x _atom_site.Cartn_y _atom_site.Cartn_z _atom_site.auth_atom_id _atom_site.auth_comp_id _atom_site.label_atom_id _atom_site.label_comp_id _atom_site.pdbx_formal_charge _atom_site.type_symbol _chem_comp.id _chem_comp.name _chem_comp.pdbx_synonyms _entity.pdbx_description _pdbx_entity_nonpoly.comp_id _pdbx_entity_nonpoly.name _pdbx_nonpoly_scheme.mon_id _pdbx_nonpoly_scheme.pdb_mon_id _struct_conn.conn_type_id _struct_conn.id _struct_conn.pdbx_dist_value _struct_conn.pdbx_leaving_atom_flag _struct_conn.ptnr1_auth_asym_id _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_label_asym_id _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr1_label_comp_id _struct_conn.ptnr1_label_seq_id _struct_conn.ptnr2_auth_asym_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_conn.ptnr2_label_atom_id _struct_conn.ptnr2_label_comp_id _struct_conn.ptnr2_label_seq_id _struct_conn_type.id _struct_site.details _struct_site.pdbx_auth_comp_id STRUCTURE_SUMMARY chem_comp_atom chem_comp_bond database_2 em_admin pdbx_entry_details pdbx_modification_feature struct_ref _database_2.pdbx_DOI _database_2.pdbx_database_accession _em_admin.last_update _struct_ref.db_name PDBe PDBe 2017-11-08 2018-01-17 2018-01-17 2025-07-09 European Research Council SPLICE3D United Kingdom Medical Research Council (United Kingdom) MC_U105184330 United Kingdom Post-catalytic P complex spliceosome with 3' splice site docked Wilkinson ME Fica SM Spliceosome, P-complex, Exon ligation, SPLICING Wilkinson ME Fica SM Galej WP Norman CM Newman AJ Nagai K Postcatalytic spliceosome structure reveals mechanism of 3'-splice site selection. Science US 358 1283 1288 2017 29146871 doi:10.1126/science.aar3729 1095-9203 0038 SCIEAS 6exn FULLOVERLAP P complex spliceosome with 3' exon docked P complex spliceosome with 3' exon docked 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

P complex was assembled in vitro in splicing extract supplemented with dominant negative mutant Prp22 protein. P complex was purified via MS2-MBP fusion protein bound to 3 MS2 hairpin loops on the mRNA.

2.2 P complex spliceosome 1 1 2 3 4 5 6 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) 3' exon 1 7 9 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) U2 snRNA Saccharomyces cerevisiae S288c 0.376267406 1 ACGAAUCUCUUUGCCUUUUGGCUUAGAUCAAGUGUAGUAUCUGUUCUUUUCAGUGUAACAACUGAAAUGACCUCAAUGAG GCUCAUUACCUUUUAAUUUGUUACAAUACACAUUUUUUGGCACCCAAAAUAAUAAAAUGGACGGGAAGAGACUUUUUAAG CAAGUUGUUUUCCGCUAAUGUCAGGUCUCACUACUUUUUGCUGCUAUUUUUCUUCGCUCAUGGUUUCUUCAUAAGGCGUU UUUAUGAUGGUUUUUCGAAAUUGGUUUUUGAGACGACGGUUGCUCAAGGUUAUUGUUUUUGUUUUCUUCUGGUUGUUUUC UAUUUUCUUUUUUUUAGCUUUCUGUUUCUCCCUUAGUUUGGCUUUUUGCUUCAUACUCUUCCCUGUCUUUCCGAGCCGUU UAUGUCCAACGCGGGAUUUGGUUUUUCUUUAUCGAUGGGAAGAAAUGGUGCUAUAGUAGGUUGGGAGAUAAUAUUUAUGG UAUGGGGUGCUAGUGCGGAUGGGGCGCUCUUAUUGUUGAUUUCUUCGCUCGUCUUCUUUUUCUGGUGGCGCUGCAAGAGG AAGUUUUUCGACUUUGUUAUGAUUUUUGGUUUGCAAGGAAAGGUGUCUUACGAUUCUUUUUUUGAUGUAAUAGGAUAAGC UUGCUUAUCCCCCAAGUAUCGGCCAAAGUUGUUGAUUUUCCUUUUGAAGUGUCCUCGGUUUGAGGGGGUGUAGGGUGGGG UUGGUCUACAAUAAGAGUGUUCCAUUGUUAACGUGCUGGCGUCUUUUACUAUAUUUUUUUUCCCAGUUUAUUUUGUGCUU AUUUUCUCAUUGAGGAGAAGGAGCUCUUCUCGCAGGAUAUAAAUGGAGGUUUGCUAAAGGGGAGGAGAUGUGUUUGUGAG AAUACUGCUGAGAGAGUUCUGGAAGAGAAAAAAAGGAGGCAAUGGAAGGCGUUUGCUGGGAAAAGAGAAGAGCCAUGACU GCAUCUGUUGUUUCAAGGCCAGUUUUAUUAACCGCCUAUGUCAUAGAGGCGUUUUUUUUGGAGGGAUUUGAAGAAUGCCG GCGGCAUCAAGAAACGGACUUGAUGGUUGACGCCUGUUUUUAAAGUUAGAGACGUCGCGACCCUCGCACUUGUGGAGUCG UUCUUGACUUUUACUUUGGUCGCUUGAUGUUUCUCUCGUCUUCCCGUUCGCUCUU BK006936.2 U5 snRNA Saccharomyces cerevisiae S288c 0.057444875 1 AAGCAGCUUUACAGAUCAAUGGCGGAGGGAGGUCAACAUCAAGAACUGUGGGCCUUUUAUUGCCUAUAGAACUUAUAACG AACAUGGUUCUUGCCUUUUACCAGAACCAUCCGGGUGUUGUCUCCAUAGAAACAGGUAAAGCUGUCCGUUACUGUGGGCU UGCCAUAUUUUUUGGAACU CP008446.1 U6 snRNA Saccharomyces cerevisiae S288c 0.035883175999999996 1 GUUCGCGAAGUAACCCUUCGUGGACAUUUGGUCAAUUUGAAACAAUACAGAGAUGAUCAGCAGUUCCCCUGCAUAAGGAU GAACCGUUUUACAAAGAGAUUUAUUUCGUUUU CP007941.1 Pre-mRNA-splicing factor Prp8 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.279867469 1 LEVO MSGLPPPPPGFEEDSDLALPPPPPPPPGYEIEELDNPMVPSSVNEDTFLPPPPPPPSNFEINAEEIVDFTLPPPPPPPGL DELETKAEKKVELHGKRKLDIGKDTFVTRKSRKRAKKMTKKAKRSNLYTPKAEMPPEHLRKIINTHSDMASKMYNTDKKA FLGALKYLPHAILKLLENMPHPWEQAKEVKVLYHTSGAITFVNETPRVIEPVYTAQWSATWIAMRREKRDRTHFKRMRFP PFDDDEPPLSYEQHIENIEPLDPINLPLDSQDDEYVKDWLYDSRPLEEDSKKVNGTSYKKWSFDLPEMSNLYRLSTPLRD EVTDKNYYYLFDKKSFFNGKALNNAIPGGPKFEPLYPREEEEDYNEFNSIDRVIFRVPIRSEYKVAFPHLYNSRPRSVRI PWYNNPVSCIIQNDEEYDTPALFFDPSLNPIPHFIDNNSSLNVSNTKENGDFTLPEDFAPLLAEEEELILPNTKDAMSLY HSPFPFNRTKGKMVRAQDVALAKKWFLQHPDEEYPVKVKVSYQKLLKNYVLNELHPTLPTNHNKTKLLKSLKNTKYFQQT TIDWVEAGLQLCRQGHNMLNLLIHRKGLTYLHLDYNFNLKPTKTLTTKERKKSRLGNSFHLMRELLKMMKLIVDTHVQFR LGNVDAFQLADGIHYILNHIGQLTGIYRYKYKVMHQIRACKDLKHIIYYKFNKNLGKGPGCGFWQPAWRVWLNFLRGTIP LLERYIGNLITRQFEGRSNEIVKTTTKQRLDAYYDLELRNSVMDDILEMMPESIRQKKARTILQHLSEAWRCWKANIPWD VPGMPAPIKKIIERYIKSKADAWVSAAHYNRERIKRGAHVEKTMVKKNLGRLTRLWIKNEQERQRQIQKNGPEITPEEAT TIFSVMVEWLESRSFSPIPFPPLTYKNDTKILVLALEDLKDVYASKVRLNASEREELALIEEAYDNPHDTLNRIKKYLLT QRVFKPVDITMMENYQNISPVYSVDPLEKITDAYLDQYLWYEADQRKLFPNWIKPSDSEIPPLLVYKWTQGINNLSEIWD VSRGQSAVLLETTLGEMAEKIDFTLLNRLLRLIVDPNIADYITAKNNVVINFKDMSHVNKYGLIRGLKFASFIFQYYGLV IDLLLLGQERATDLAGPANNPNEFMQFKSKEVEKAHPIRLYTRYLDRIYMLFHFEEDEGEELTDEYLAENPDPNFENSIG YNNRKCWPKDSRMRLIRQDVNLGRAVFWEIQSRVPTSLTSIKWENAFVSVYSKNNPNLLFSMCGFEVRILPRQRMEEVVS NDEGVWDLVDERTKQRTAKAYLKVSEEEIKKFDSRIRGILMASGSTTFTKVAAKWNTSLISLFTYFREAIVATEPLLDIL VKGETRIQNRVKLGLNSKMPTRFPPAVFYTPKELGGLGMISASHILIPASDLSWSKQTDTGITHFRAGMTHEDEKLIPTI FRYITTWENEFLDSQRVWAEYATKRQEAIQQNRRLAFEELEGSWDRGIPRISTLFQRDRHTLAYDRGHRIRREFKQYSLE RNSPFWWTNSHHDGKLWNLNAYRTDVIQALGGIETILEHTLFKGTGFNSWEGLFWEKASGFEDSMQFKKLTHAQRTGLSQ IPNRRFTLWWSPTINRANVYVGFLVQLDLTGIFLHGKIPTLKISLIQIFRAHLWQKIHESIVFDICQILDGELDVLQIES VTKETVHPRKSYKMNSSAADITMESVHEWEVSKPSLLHETNDSFKGLITNKMWFDVQLRYGDYDSHDISRYVRAKFLDYT TDNVSMYPSPTGVMIGIDLAYNMYDAYGNWFNGLKPLIQNSMRTIMKANPALYVLRERIRKGLQIYQSSVQEPFLNSSNY AELFNNDIKLFVDDTNVYRVTVHKTFEGNVATKAINGCIFTLNPKTGHLFLKIIHTSVWAGQKRLSQLAKWKTAEEVSAL VRSLPKEEQPKQIIVTRKAMLDPLEVHMLDFPNIAIRPTELRLPFSAAMSIDKLSDVVMKATEPQMVLFNIYDDWLDRIS SYTAFSRLTLLLRALKTNEESAKMILLSDPTITIKSYHLWPSFTDEQWITIESQMRDLILTEYGRKYNVNISALTQTEIK DIILGQNIKAPSVKRQKMAELEAARSEKQNDEEAAGASTVMKTKTINAQGEEIVVVASADYESQTFSSKNEWRKSAIANT LLYLRLKNIYVSADDFVEEQNVYVLPKNLLKKFIEISDVKIQVAAFIYGMSAKDHPKVKEIKTVVLVPQLGHVGSVQISN IPDIGDLPDTEGLELLGWIHTQTEELKFMAASEVATHSKLFADKKRDCIDISIFSTPGSVSLSAYNLTDEGYQWGEENKD IMNVLSEGFEPTFSTHAQLLLSDRITGNFIIPSGNVWNYTFMGTAFNQEGDYNFKYGIPLEFYNEMHRPVHFLQFSELAG DEELEAEQIDVFS P33334 Pre-mRNA-splicing factor SNU114 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.114174008 1 LEVO MEGDDLFDEFGNLIGVDPFDSDEEESVLDEQEQYQTNTFEGSGNNNEIESRQLTSLGSKKELGISLEHPYGKEVEVLMET KNTQSPQTPLVEPVTERTKLQEHTIFTQLKKNIPKTRYNRDYMLSMANIPERIINVGVIGPLHSGKTSLMDLLVIDSHKR IPDMSKNVELGWKPLRYLDNLKQEIDRGLSIKLNGSTLLCTDLESKSRMINFLDAPGHVNFMDETAVALAASDLVLIVID VVEGVTFVVEQLIKQSIKNNVAMCFVINKLDRLILDLKLPPMDAYLKLNHIIANINSFTKGNVFSPIDNNIIFASTKLGF TFTIKEFVSYYYAHSIPSSKIDDFTTRLWGSVYYHKGNFRTKPFENVEKYPTFVEFILIPLYKIFSYALSMEKDKLKNLL RSNFRVNLSQEALQYDPQPFLKHVLQLIFRQQTGLVDAITRCYQPFELFDNKTAHLSIPGKSTPEGTLWAHVLKTVDYGG AEWSLVRIYSGLLKRGDTVRILDTSQSESRQKRQLHDISKTETSNEDEDEDDETPSCEVEEIGLLGGRYVYPVHEAHKGQ IVLIKGISSAYIKSATLYSVKSKEDMKQLKFFKPLDYITEAVFKIVLQPLLPRELPKLLDALNKISKYYPGVIIKVEESG EHVILGNGELYMDCLLYDLRASYAKIEIKISDPLTVFSESCSNESFASIPVSNSISRLGEENLPGLSISVAAEPMDSKMI QDLSRNTLGKGQNCLDIDGIMDNPRKLSKILRTEYGWDSLASRNVWSFYNGNVLINDTLPDEISPELLSKYKEQIIQGFY WAVKEGPLAEEPIYGVQYKLLSISVPSDVNIDVMKSQIIPLMKKACYVGLLTAIPILLEPIYEVDITVHAPLLPIVEELM KKRRGSRIYKTIKVAGTPLLEVRGQVPVIESAGFETDLRLSTNGLGMCQLYFWHKIWRKVPGDVLDKDAFIPKLKPAPIN SLSRDFVMKTRRRKGISTGGFMSNDGPTLEKYISAELYAQLRENGLVP P36048 Pre-mRNA-splicing factor CWC16 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.032371086 1 LEVO MSERKAINKYYPPDYNPLEAEKLSRKMAKKLKTMNKSHASIRLMTPFSMRCLECNEYIPKSRKFNGKKELLKEKYLDSIK IYRLTISCPRCANSIAFRTDPGNSDYVMEVGGVRNYVPQKPNDDLNAKTAVESIDETLQRLVREKEMEQNEKMGIKEQAD DKMDLLEKRLAKIQQEQEDDEELENLRKKNLEMSQRAEMINRSKHAQQEKAVTTDDLDNLVDQVFDNHRQRTNKPGNNND EKRTPLFNPTSTKGKIQKKSSVRTNPLGIVIKRGKSLK P28320 Ligated exons: UBC4 mRNA Saccharomyces cerevisiae S288c 0.012523501 1 GAAGUAAGUGAUCUAGAAAGAGAUCCACCUACUUCAUGU Pre-mRNA-splicing factor CWC22 Saccharomyces cerevisiae ATCC 204508 / S288c 0.067386062 1 LEVO MSTATIQDEDIKFQRENWEMIRSHVSPIISNLTMDNLQESHRDLFQVNILIGRNIICKNVVDFTLNKQNGRLIPALSALI ALLNSDIPDIGETLAKELMLMFVQQFNRKDYVSCGNILQCLSILFLYDVIHEIVILQILLLLLEKNSLRLVIAVMKICGW KLALVSKKTHDMIWEKLRYILQTQELSSTLRESLETLFEIRQKDYKSGSQGLFILDPTSYTVHTHSYIVSDEDEANKELG NFEKCENFNELTMAFDTLRQKLLINNTSDTNEGSNSQLQIYDMTSTNDVEFKKKIYLVLKSSLSGDEAAHKLLKLKIANN LKKSVVDIIIKSSLQESTFSKFYSILSERMITFHRSWQTAYNETFEQNYTQDIEDYETDQLRILGKFWGHLISYEFLPMD CLKIIKLTEEESCPQGRIFIKFLFQELVNELGLDELQLRLNSSKLDGMFPLEGDAEHIRYSINFFTAIGLGLLTEDMRSR LTIIQEVEDAEEEEKKLREEEELEKLRKKARESQPTQGPKIHESRLFLQKDTRENSRSRSPFTVETRKRARSRTPPRGSR NHRNRSRTPPARRQRHR P53333 Intron lariat: UBC4 RNA Saccharomyces cerevisiae S288c 0.03020073 1 GUAUGUCUAAAGUUAUGGCCACGUUUCAAAUGCGUGCUUUUUUUUUAAAACUUAUGCUCUUAUUUACUAACAAAAUCAAC AUGCUAUUGAACUAG BK006936.2 Pre-mRNA-splicing factor PRP46 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.050801316 1 LEVO MDGNDHKVENLGDVDKFYSRIRWNNQFSYMATLPPHLQSEMEGQKSLLMRYDTYRKESSSFSGEGKKVTLQHVPTDFSET SQAVISKKDHDTHASAFVNKIFQPEVAEELIVNRYEKLLSQRPEWHAPWKLSRVINGHLGWVRCVAIDPVDNEWFITGSN DTTMKVWDLATGKLKTTLAGHVMTVRDVAVSDRHPYLFSVSEDKTVKCWDLEKNQIIRDYYGHLSGVRTVSIHPTLDLIA TAGRDSVIKLWDMRTRIPVITLVGHKGPINQVQCTPVDPQVVSSSTDATVRLWDVVAGKTMKVLTHHKRSVRATALHPKE FSVASACTDDIRSWGLAEGSLLTNFESEKTGIINTLSINQDDVLFAGGDNGVLSFYDYKSGHKYQSLATREMVGSLEGER SVLCSTFDKTGLRLITGEADKSIKIWKQDETATKESEPGLAWNPNLSAKRF Q12417 Pre-mRNA-processing protein 45 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.042548726999999995 1 LEVO MFSNRLPPPKHSQGRVSTALSSDRVEPAILTDQIAKNVKLDDFIPKRQSNFELSVPLPTKAEIQECTARTKSYIQRLVNA KLANSNNRASSRYVTETHQAPANLLLNNSHHIEVVSKQMDPLLPRFVGKKARKVVAPTENDEVVPVLHMDGSNDRGEADP NEWKIPAAVSNWKNPNGYTVALERRVGKALDNENNTINDGFMKLSEALENADKKARQEIRSKMELKRLAMEQEMLAKESK LKELSQRARYHNGTPQTGAIVKPKKQTSTVARLKELAYSQGRDVSEKIILGAAKRSEQPDLQYDSRFFTRGANASAKRHE DQVYDNPLFVQQDIESIYKTNYEKLDEAVNVKSEGASGSHGPIQFTKAESDDKSDNYGA P28004 Pre-mRNA-splicing factor BUD31 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.018484502 1 LEVO MPRIKTRRSKPAPDGFEKIKPTLTDFEIQLRDAQKDKSSKLAAKSNEQLWEIMQLHHQRSRYIYTLYYKRKAISKDLYDW LIKEKYADKLLIAKWRKTGYEKLCCLRCIQKNETNNGSTCICRVPRAQLEEEARKKGTQVSFHQCVHCGCRGCASTD P25337 Pre-mRNA-splicing factor CWC2 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.038486561999999995 1 LEVO MTSWRDKSAKVQVKESELPSSIPAQTGLTFNIWYNKWSQGFAGNTRFVSPFALQPQLHSGKTRGDNDGQLFFCLFFAKGM CCLGPKCEYLHHIPDEEDIGKLALRTEVLDCFGREKFADYREDMGGIGSFRKKNKTLYVGGIDGALNSKHLKPAQIESRI RFVFSRLGDIDRIRYVESKNCGFVKFKYQANAEFAKEAMSNQTLLLPSDKEWDDRREGTGLLVKWANEDPDPAAQKRLQE ELKLESLNMMVHLINNNTNSAGTEVNNKNNERLDRTFPEASVDNVKKRLLPLDNGMESDDFIEKLKKVKKNISRENISSK PSVGKLGGPLLDYLSSDED Q12046 Pre-mRNA-splicing factor SLT11 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.04098858999999999 1 LEVO MNDEINEPPPNICEQCLGDEANIRMTKIPQGSECKICTLPFTLYHFKTSKRSNNIIKTLICVRCATQRNICQCCMLDSRW HIPIQLRDHLISLVNEENVMTEEAKNDMMKRFLSLKNVKLGGAQITSDPSEADNIVDKLKNILLRATSDGPSTPLIKNTT ALYKNEKGANEVKNLEKYASVDISHILKKLPLNESFLKNPSTKSFFLYNIDASIPEWKITDTVSQLLGIKKWKDGNSLSL IVNHKAKCGGLRFQSSELGERFVSKISETLVTPKGLKRGVLLIDRFRIFIIPWSSGFSAASFGTNTAENIKLSLSLNKLI QLELGLSFPTKSTDNAKNDKKKTSKKVHKDRSKKSKPRANKLTI P38241 Pre-mRNA-splicing factor CEF1 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.067829812 1 LEVO MPPVPIYVKGGVWTNVEDQILKAAVQKYGTHQWSKVASLLQKKTARQSELRWNEYLNPKLNFTEFSKEEDAQLLDLAREL PNQWRTIADMMARPAQVCVERYNRLLESEDSGGAALSTGVTDLKVGDINPNAETQMARPDNGDLEDEEKEMLAEARARLL NTQGKKATRKIRERMLEESKRIAELQKRRELKQAGINVAIKKPKKKYGTDIDYNEDIVYEQAPMPGIYDTSTEDRQIKKK FEQFERKVNRKGLDGNKDKPSKKNKDKKRKHDENEHVEKAALGEPTTLTDEYKKPKLILSAPGTKQGKVTYKKKLESKRQ KLIEAQATGTVLTPKELLPHEPGQEDNERSNIKSGKQLKSRIRKFLVQMFASLPSPKNDFEIVLSEDEKEEDAEIAEYEK EFENERAMNEEDNFIESPSQNDAPPVSLVAVPLAYSTLPIPEFKNNPQSAIDNKYNLLVANAINKEPHMVPEDTVDFLKE VESRMQHITQGRTSMKIQFKTAMPPTEVLLESIQSKVESIEQLQRKLQHVQPLEQQNNEMCSTLCHHSLPALIEGQRKYY ADYYAYRQEIRSLEGRRKRLQAMLNSSSSI Q03654 Pre-mRNA-splicing factor CWC15 Saccharomyces cerevisiae ATCC 204508 / S288c 0.019970195 1 LEVO MTTSHRPQLEARSGAKAAAYTPTGIEHARLLPGHTTLKYRKFKEEENLKANCAQEDRNNDKSLEEVVVNEEKQDVVGSGN LQETRSEKDQKDSLQELLVTQKNKVEDKAELEGNEQLKGGNSSRRSWRKGTAFGRHKVTKETNIKEHATKKSASGYINDM TKSEYHQEFLHKHVR Q03772 Pre-mRNA-splicing factor CWC21 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.015793596 1 LEVO MSYNGIGLKSAKGSSTSGHVQRSLASNNRRRPQGSQQQRQQRQNAIKKASHDKASRPLAVQKQIETHMEKREIEVQVSEL RDRLEEEETLSEEQIDKKCEALRAKLTNEWQEQQRMSSLYTPRKARLTEEQHRHE Q03375 Pre-mRNA-splicing factor CLF1 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.08256092200000001 1 LEVO MDTLEPTAVDTHVSAEQILRDVYKKGQKARGSTNIDILDLEELREYQRRKRTEYEGYLKRNRLDMGQWIRYAQFEIEQHD MRRARSIFERALLVDSSFIPLWIRYIDAELKVKCINHARNLMNRAISTLPRVDKLWYKYLIVEESLNNVEIVRSLYTKWC SLEPGVNAWNSFVDFEIRQKNWNGVREIYSKYVMAHPQMQTWLKWVRFENRHGNTEFTRSVYSLAIDTVANLQNLQIWSD MEVAKLVNSFAHWEAAQQEYERSSALYQIAIEKWPSNQLLKAGLLDFEKQFGDINSIEETISYKRKMEYETILSNNAYDY DTWWLYLDLISESFPKQIMQTFEKAIVDSRPKELSKNVQWKRYIYLWMRYICYVELELENSLLEEELFQRLIDDIIPHKH FTFSKIWLMYAKFLIRHDDVPKARKILGKAIGLCPKAKTFKGYIELEVKLKEFDRVRKIYEKFIEFQPSDLQIWSQYGEL EENLGDWDRVRGIYTIALDENSDFLTKEAKIVLLQKYITFETESQEFEKARKLYRRYLELNQYSPQSWIEFAMYQTSTPT KQQLLDLAKLQSENVDEDIEFEITDENKLEARKVFEEAIVFFKEKDDKQGRLSIMEALKDYEETYGTELDQETVKKRFPK VIKKVRLQDGVEEEFVDYVFPDDIDDDKPKPSKFLELAKKWKQEQAL Q12309 Pre-mRNA-splicing factor SYF1 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.10035607 1 LEVO MSAYIAMKGVITNVDENIRNDEDVAFEYEIQKTPQNILTWKRYIEYWKEEGRTDKQIRWLYERFCSQFVTDTSIWEDYIR WESTKEVVETSRIFWLFQRCLKSCVRDCDRICLSYLELAIEQYDLAMIRHALASSLMKMEREMHRKVWDPVIKFVEEKVL PLTQLDSTQEDEEESTDEAELINVLLVKGFTKGGFISEEISENGSRGDIWSSHILERYLKVAPQQKRNESLATLALTRDN ITIKSVYEKYLPQDENSGKYLPSSELPFELNFNYLASLEKLGLDNQYEEFMRQMNGIYPDKWLFLILSLAKYYISRGRLD SCGDLLKKSLQQTLRYSDFDRIYNFYLLFEQECSQFILGKLKENDSKFFNQKDWTEKLQAHMATFESLINLYDIYLNDVA LRQDSNLVETWMKRVSLQKSAAEKCNVYSEAILKIDPRKVGTPGSFGRLWCSYGDLYWRSNAISTARELWTQSLKVPYPY IEDLEEIYLNWADRELDKEGVERAFSILEDALHVPTNPEILLEKYKNGHRKIPAQTVLFNSLRIWSKYIDYLEAYCPKDA NSSDKIFNKTKMAYNTVIDLRLITPAMAENFALFLQNHYEVMESFQVYEKTIPLFPPEIQYELWIEYLEVATSHQLSSLS PEHIRFLFEKALKNLCSNGIDCKTIFIAYSVFEERISGLISKSIEILRRGAVIGIVSVSTHLESRLQLWRMCISKAESTL GPSVTRELYQECIQILPNSKAVEFVIKFSDFESSIGETIRAREILAYGAKLLPPSRNTELWDSFEIFELKHGDKETYKDM LKMKKVLESNMLIDSASVSHEEGNINFVAAATSHAPNSHTLTQSTSSYSINPDEIELDI Q04048 Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP22 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.130187359 1 LEVO MSDISKLIGAIVGSDDPVIIEFVLNIINKSGNLQEFIRNIQKLDAGISYEDSIKMYNAFLGKQEEEKVRNKVKSSPLSQK INQVLKDDVNLDDPVVTEFVLSILNKSKSITEFQEQLNLMQSGLDNETIFKIYQIASPPVMKEEVSVLPSTKIPAKIEAK IEEEVQKIESLDPSPVLHKVYEGKVRNITTFGCFVQIFGTRMKNCDGLVHISEMSDQRTLDPHDVVRQGQHIFVEVIKIQ NNGKISLSMKNIDQHSGEIRKRNTESVEDRGRSNDAHTSRNMKNKIKRRALTSPERWEIRQLIASGAASIDDYPELKDEI PINTSYLTAKRDDGSIVNGNTEKVDSKLEEQQRDETDEIDVELNTDDGPKFLKDQQVKGAKKYEMPKITKVPRGFMNRSA INGSNAIRDHREEKLRKKREIEQQIRKQQSFDDPTKNKKDSRNEIQMLKNQLIVTEWEKNRMNESISYGKRTSLPISAQR QTLPVYAMRSELIQAVRDNQFLVIVGETGSGKTTQITQYLDEEGFSNYGMIGCTQPRRVAAVSVAKRVAEEVGCKVGHDV GYTIRFEDVTGPDTRIKYMTDGMLQREALLDPEMSKYSVIMLDEAHERTVATDVLFALLKKAAIKRPELKVIVTSATLNS AKFSEYFLNCPIINIPGKTFPVEVLYSQTPQMDYIEAALDCVIDIHINEGPGDILVFLTGQEEIDSCCEILYDRVKTLGD SIGELLILPVYSALPSEIQSKIFEPTPKGSRKVVFATNIAETSITIDGIYYVVDPGFAKINIYNARAGIEQLIVSPISQA QANQRKGRAGRTGPGKCYRLYTESAFYNEMLENTVPEIQRQNLSHTILMLKAMGINDLLKFDFMDPPPKNLMLNALTELY HLQSLDDEGKLTNLGKEMSLFPMDPTLSRSLLSSVDNQCSDEIVTIISMLSVQNVFYRPKDRQLEADSKKAKFHHPYGDH LTLLNVYTRWQQANYSEQYCKTNFLHFRHLKRARDVKSQISMIFKKIGLKLISCHSDPDLIRKTFVSGFFMNAAKRDSQV GYKTINGGTEVGIHPSSSLYGKEYEYVMYHSIVLTSREYMSQVTSIEPQWLLEVAPHFYKAGDAESQSRKKAKIIPLHNK FAKDQNSWRLSSIRQSRERALGIKR P24384 3.6.4.13 U2 small nuclear ribonucleoprotein A' Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.027232252 1 LEVO MKFTPSIVIDAPQYYVDHFNGKYNVDKCVILRDLQLETDSESMPSSLKHLTKPTHILDLTNNDLIMIPDLSRRDDIHTLL LGRNNIVEVDGRLLPMNVQNLTLSNNSIRRFEDLQRLRRAPRTLKNLTLIGNQVCHLANYREHVLRLVPHLETLDFQNVT AEERKSAMSFPRQADGDTLGPVNTAIRDNGSRDKTMEIMNLVVSKMTVERRNELKKQLAEATSLEEIARLEKLLSGGV Q08963 Unassigned structure Saccharomyces cerevisiae S288c 0.008102979 1 LEVO (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) U2 small nuclear ribonucleoprotein B'' Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.012850944 1 LEVO MVEPARKKQRIDRDTHHTVAEPVTEAKNTLYVSQLNEKINMQRLRVNLFLLFATFGEVLKVSMNFKKQRGQAFITMRTID QASLAQISLNGERFFGKPLKVEFSKSETKTL P40567 Pre-mRNA-splicing factor Prp18 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.028414390999999997 1 LEVO MDLDLASILKGEISKKKKELANSKGVQPPCTEKFQPHESANIDETPRQVEQESTDEENLSDNQSDDIRTTISKLENRPER IQEAIAQDKTISVIIDPSQIGSTEGKPLLSMKCNLYIHEILSRWKASLEAYHPELFLDTKKALFPLLLQLRRNQLAPDLL ISLATVLYHLQQPKEINLAVQSYMKLSIGNVAWPIGVTSVGIHARSAHSKIQGGRNAANIMIDERTRLWITSIKRLITFE EWYTSNHDSLA P33411 Small nuclear ribonucleoprotein-associated protein B Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.02242699 2 LEVO MSKIQVAHSSRLANLIDYKLRVLTQDGRVYIGQLMAFDKHMNLVLNECIEERVPKTQLDKLRPRKDSKDGTTLNIKVEKR VLGLTILRGEQILSTVVEDKPLLSKKERLVRDKKEKKQAQKQTKLRKEKEKKPGKIAKPNTANAKHTSSNSREIAQPSSS RYNGGNDNIGANRSRFNNEAPPQTRKFQPPPGFKRK P40018 Pre-mRNA-splicing factor SLU7 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.044722874999999995 1 LEVO MNNNSRNNENRSTINRNKRQLQQAKEKNENIHIPRYIRNQPWYYKDTPKEQEGKKPGNDDTSTAEGGEKSDYLVHHRQKA KGGALDIDNNSEPKIGMGIKDEFKLIRPQKMSVRDSHSLSFCRNCGEAGHKEKDCMEKPRKMQKLVPDLNSQKNNGTVLV RATDDDWDSRKDRWYGYSGKEYNELISKWERDKRNKIKGKDKSQTDETLWDTDEEIELMKLELYKDSVGSLKKDDADNSQ LYRTSTRLREDKAAYLNDINSTESNYDPKSRLYKTETLGAVDEKSKMFRRHLTGEGLKLNELNQFARSHAKEMGIRDEIE DKEKVQHVLVANPTKYEYLKKKREQEETKQPKIVSIGDLEARKVDGTKQSEEQRNHLKDLYG Q02775 Small nuclear ribonucleoprotein Sm D3 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.011240138999999998 2 LEVO MTMNGIPVKLLNEAQGHIVSLELTTGATYRGKLVESEDSMNVQLRDVIATEPQGAVTHMDQIFVRGSQIKFIVVPDLLKN APLFKKNSSRPMPPIRGPKRR P43321 Small nuclear ribonucleoprotein E Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.010385097999999999 2 LEVO MSNKVKTKAMVPPINCIFNFLQQQTPVTIWLFEQIGIRIKGKIVGFDEFMNVVIDEAVEIPVNSADGKEDVEKGTPLGKI LLKGDNITLITSAD Q12330 Small nuclear ribonucleoprotein F Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.009669945 2 LEVO MSESSDISAMQPVNPKPFLKGLVNHRVGVKLKFNSTEYRGTLVSTDNYFNLQLNEAEEFVAGVSHGTLGEIFIRCNNVLY IRELPN P54999 Small nuclear ribonucleoprotein G Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.008490808999999998 2 LEVO MVSTPELKKYMDKKILLNINGSRKVAGILRGYDIFLNVVLDDAMEINGEDPANNHQLGLQTVIRGNSIISLEALDAI P40204 Small nuclear ribonucleoprotein Sm D1 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.016296798 2 LEVO MKLVNFLKKLRNEQVTIELKNGTTVWGTLQSVSPQMNAILTDVKLTLPQPRLNKLNSNGIAMASLYLTGGQQPTASDNIA SLQYINIRGNTIRQIILPDSLNLDSLLVDQKQLNSLRRSGQIANDPSKKRRRDFGAPANKRPRRGL Q02260 Small nuclear ribonucleoprotein Sm D2 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.012876066 2 LEVO MSSQIIDRPKHELSRAELEELEEFEFKHGPMSLINDAMVTRTPVIISLRNNHKIIARVKAFDRHCNMVLENVKELWTEKK GKNVINRERFISKLFLRGDSVIVVLKTPVE Q06217 Pre-mRNA-processing factor Prp17 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.052128762 1 LEVO MGLVDGYDTSSDSDLNFDEGKSVHEKKNGNLHEDTSYEPSSNNIHKRKSHFTKSELKRRRKTRKGDGPWGSWSSSDDETS QASETQKEDQDIFVHALAEDNLDSEQIEVEEVSHFYGKSEKDYQGRGYLYPPNDVDVDLREERISFRCYLPKKVIRNYPG HPEGTTALKFLPKTGHLILSGGNDHTIKIWDFYHDYECLRDFQGHNKPIKALRFTEDCQSFLSSSFDRSVKIWDTETGKV KTRLHLNSTPADVESRPTNPHEFIVGLSNSKILHYDDRVSENQGLVQTYDHHLSSILALKYFPDGSKFISSSEDKTVRIW ENQINVPIKQISDTAQHSMPFLNVHPSQNYFCAQSMDNRIYSFSLKPKYKRHPKKIFKGHSSAGYGISLAFSGDGRYICS GDSKSRLFTWDWNTSRLLNNIKIPGNKPITQVDWHPQETSKVICSGAAGKIYVCD P40968 Pre-mRNA-splicing factor SNT309 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.020741455000000002 1 LEVO MDGLSFVDKGKIPDGYKNEIDQLVKKEFANIKREPVHPEIRGILAKRKGADNSVSTLTNALYTEYLKQRNNKKRRTPDFN DDDDTLFLEEYRRKYPRIDTSRYIPNESSEVSLLGIVDSYLKHQEIVLDTLLPQTVSNQWRINNDYIRQTCTIVEEMNIQ QRKQINDLEIYRKRL Q06091 Pre-mRNA-processing factor Prp19 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.056629777 4 LEVO MLCAISGKVPRRPVLSPKSRTIFEKSLLEQYVKDTGNDPITNEPLSIEEIVEIVPSAQQASLTESTNSATLKANYSIPNL LTSLQNEWDAIMLENFKLRSTLDSLTKKLSTVMYERDAAKLVAAQLLMEKNEDSKDLPKSSQQAVAITREEFLQGLLQSS RDFVARGKLKAPKWPILKNLELLQAQNYSRNIKTFPYKELNKSMYYDKWVCMCRCEDGALHFTQLKDSKTITTITTPNPR TGGEHPAIISRGPCNRLLLLYPGNQITILDSKTNKVLREIEVDSANEIIYMYGHNEVNTEYFIWADNRGTIGFQSYEDDS QYIVHSAKSDVEYSSGVLHKDSLLLALYSPDGILDVYNLSSPDQASSRFPVDEEAKIKEVKFADNGYWMVVECDQTVVCF DLRKDVGTLAYPTYTIPEFKTGTVTYDIDDSGKNMIAYSNESNSLTIYKFDKKTKNWTKDEESALCLQSDTADFTDMDVV CGDGGIAAILKTNDSFNIVALTP P32523 2.3.2.27 Pre-mRNA-splicing factor SYF2 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ATCC 204508 / S288c 0.024850719 1 LEVO MDFYKLDEKLKELKRKRVDVSIKSRKLADREIQEVSANRKPRVYSMEDVNDADESVGDTESPEKEKAFHYTVQEYDAWER RHPQGKTGQSQRGGISYDQLAKLSYEKTLRNLATQTQNSSKQDSSADEEDNKNVPKKGRIGKVQKDTKTGKITIADDDKL VNKLAVSLQSESKKRYEARKRQMQNAKTLYGVESFINDKNKQFNEKLSRESKGSE P53277 MAGNESIUM ION 2.4305e-05 1 MG INOSITOL HEXAKISPHOSPHATE 0.0006600349999999999 1 IHP GUANOSINE-5'-TRIPHOSPHATE 0.0005231799999999999 1 GTP ZINC ION 6.5409e-05 7 ZN singleParticle particle 1.4 7.9 20.0 HEPES.KOH pH 7.9 75.0 KCl Potassium chloride 0.25 EDTA Quantifoil R2/2 COPPER 400 CARBON CONTINUOUS 7.0 GLOW DISCHARGE 15 AIR ETHANE 100 277 FEI VITROBOT MARK III

3 uL sample was applied to the grid, left for 30s, then blotted for 3s and immediately plunged into liquid ethane..

FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 0.2 3.0 105000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN GATAN K2 SUMMIT (4k x 4k) COUNTING 1-20 1 2295 12.0 47.0 1 206529 Gctf PHASE FLIPPING AND AMPLITUDE CORRECTION EMD-3539 C1 3.7 FSC 0.143 CUT-OFF RELION 2.1 patched version 48617 PROJECTION MATCHING RELION 2.1 PROJECTION MATCHING RELION 2.1 patched version emd_3979.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 537.6 537.6 537.6 90.0 90.0 90.0 X Y Z -0.09385809 0.17415203 -0.00024446368 0.0068207434 1.12 1.12 1.12 0.04 AUTHOR ::::EMDATABANK.org::::EMD-3979::::