2026-06-24 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update DATA_COLLECTION chem_comp_atom chem_comp_bond em_admin _chem_comp_atom.atom_id _chem_comp_atom.pdbx_aromatic_flag _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.pdbx_aromatic_flag _chem_comp_bond.value_order _em_admin.last_update DATA_COLLECTION atom_site chem_comp_atom chem_comp_bond em_admin pdbx_validate_rmsd_angle _atom_site.auth_atom_id _atom_site.label_atom_id _chem_comp_atom.atom_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _em_admin.last_update PDBe PDBe 2023-11-10 2024-03-06 2024-03-06 2026-06-24 German Research Foundation (DFG) Germany Fluegel T Schacherl M polysome, tranlsation, disome, RIBOSOME Flugel T Schacherl M Unbehaun A Schroeer B Dabrowski M Burger J Mielke T Sprink T Diebolder CA Guillen Schlippe YV Spahn CMT Nat Commun UK 15 1756 1756 2024 38409277 doi:10.1038/s41467-024-46092-3 2041-1723 EMD-17743 focused EM volume

Leading ribosome focused map

EMD-17631 focused EM volume

Queuing ribosome focused map

8r3v FULLOVERLAP EMDB EMD-17743 focused EM volume

Leading ribosome focused map

EMDB EMD-17631 focused EM volume

Queuing ribosome focused map

EMDB EMD-18875 associated EM volume

Escherichia coli paused disome complex (non-rotated disome interface)

PDB 8PKL unspecified

Leading ribosome model

PDB 8PEG unspecified

Queuing ribosome model

Escherichia coli paused disome complex Escherichia coli paused disome complex 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 34 35 36 37 38 39 40 41 42 43 44 45

Model of the interface of non-rotated disome, focused refinement on interface applied on disome map

Escherichia coli MRE 600 2.8618 50S ribosomal protein L28 Escherichia coli 0.009027550999999998 1 LEVO MSRVCQVTGKRPVTGNNRSHALNATKRRFLPNLHSHRFWVESEKRFVTLRVSAKGMRVIDKKGIDTVLAELRARGEKY P0A7M2 50S ribosomal protein L30 Escherichia coli 0.006554819999999999 1 LEVO MAKTIKITQTRSAIGRLPKHKATLLGLGLRRIGHTVEREDTPAIRGMINAVSFMVKVEE P0AG51 Large ribosomal subunit protein bL31A Escherichia coli 0.007887116999999999 1 LEVO MKKDIHPKYEEITASCSCGNVMKIRSTVGHDLNLDVCSKCHPFFTGKQRDVATGGRVDRFNKRFNIPGSK P0A7M9 50S ribosomal protein L35 Escherichia coli 0.007313032 1 LEVO MPKIKTVRGAAKRFKKTGKGGFKHKHANLRHILTKKATKRKRHLRPKAMVSKGDLGLVIACLPYA P0A7Q1 23S ribosomal RNA Escherichia coli 0.941812562 2 GGUUAAGCGACUAAGCGUACACGGUGGAUGCCCUGGCAGUCAGAGGCGAUGAAGGACGUGCUAAUCUGCGAUAAGCGUCG GUAAGGUGAUAUGAACCGUUAUAACCGGCGAUUUCCGAAUGGGGAAACCCAGUGUGUUUCGACACACUAUCAUUAACUGA AUCCAUAGGUUAAUGAGGCGAACCGGGGGAACUGAAACAUCUAAGUACCCCGAGGAAAAGAAAUCAACCGAGAUUCCCCC AGUAGCGGCGAGCGAACGGGGAGCAGCCCAGAGCCUGAAUCAGUGUGUGUGUUAGUGGAAGCGUCUGGAAAGGCGCGCGA UACAGGGUGACAGCCCCGUACACAAAAAUGCACAUGCUGUGAGCUCGAUGAGUAGGGCGGGACACGUGGUAUCCUGUCUG AAUAUGGGGGGACCAUCCUCCAAGGCUAAAUACUCCUGACUGACCGAUAGUGAACCAGUACCGUGAGGGAAAGGCGAAAA GAACCCCGGCGAGGGGAGUGAAAAAGAACCUGAAACCGUGUACGUACAAGCAGUGGGAGCACGCUUAGGCGUGUGACUGC GUACCUUUUGUAUAAUGGGUCAGCGACUUAUAUUCUGUAGCAAGGUUAACCGAAUAGGGGAGCCGAAGGGAAACCGAGUC UUAACUGGGCGUUAAGUUGCAGGGUAUAGACCCGAAACCCGGUGAUCUAGCCAUGGGCAGGUUGAAGGUUGGGUAACACU AACUGGAGGACCGAACCGACUAAU(1MG)(PSU)(5MU)GAAAAAUUAGCGGAUGACUUGUGGCUGGGGGUGAAAGGCCA AUCAAACCGGGAGAUAGCUGGUUCUCCCCGAAAGCUAUUUAGGUAGCGCCUCGUGAAUUCAUCUCCGGGGGUAGAGCACU GUUUCGGCAAGGGGGUCAUCCCGACUUACCAACCCGAUGCAAACUGCGAAUACCGGAGAAUGUUAUCACGGGAGACACAC GGCGGG(PSU)GCUAACGUCCGUCGUGAAGAGGGAAACAACCCAGACCGCCAGCUAAGGUCCCAAAGUCAUGGUUAAGUG GGAAACGAUGUGGGAAGGCCCAGACAGCCAGGAUGUUGGCUUAGAAGCAGCCAUCAUUUAAAGAAAGCGUAAUAGCUCAC UGGUCGAGUCGGCCUGCGCGGAAGAUGUAACGGGGCUAAACCAUGCACCGAAGCUGCGGCAGCGACGCUUAUGCGUUGUU GGGUAGGGGAGCGUUCUGUAAGCCUGCGAAGGUGUGCUGUGAGGCAUGCUGGAGGUAUCAGAAGUGCGAAUGCUGACAUA AGUAACGAUAAAGCGGGUGAAAAGCCCGCUCGCCGGAAGACCAAGGGUUCCUGUCCAACGUUAAUCGGGGCAGGGUGAGU CGACCCCUAAGGCGAGGCCGAAAGGCGUAGUCGAUGGGAAACAGGUUAAUAUUCCUGUACUUGGUGUUACUGCGAAGGGG GGACGGAGAAGGCUAUGUUGGCCGGGCGACGGUUGUCCCGGUUUAAGCGUGUAGGCUGGUUUUCCAGGCAAAUCCGGAAA AUCAAGGCUGAGGCGUGAUGACGAGGCACUACGGUGCUGAAGCAACAAAUGCCCUGCUUCCAGGAAAAGCCUCUAAGCAU CAGGUAACAUCAAAUCGUACCCCAAACCGACAC(6MZ)GGUGGUCAGGUAGAGAAUACCAAGGCGCUUGAGAGAACUCGG GUGAAGGAACUAGGCAAAAUGGUGCCGUAACUUCGGGAGAAGGCACGCUGAUAUGUAGGUGAGGUCCCUCGCGGAUGGAG CUGAAAUCAGUCGAAGAUACCAGCUGGCUGCAACUGUUUAUUAAAAACACAGCACUGUGCAAACACGAAAGUGGACGUAU ACGGUGUGACGCCU(2MG)CCCGGUGCCGGAAGGUUAAUUGAUGGGGUUAGCGCAAGCGAAGCUCUUGAUCGAAGCCCCG GUAAACGGCGGCCGUAAC(3TD)AUAACGGUCCUAAGGUAGCGAAA(5MU)UCCUUGUCGGGUAAGUUCCGAC(5MC)UG CACGAAUGGCGUAAUGAUGGCCAGGCUGUCUCCACCCGAGACUCAGUGAAAUUGAACUCGCUGUG(6MZ)AGAUGCAGUG UACCCGCGGCAAGACGGAAAGACCCCGU(G7M)AACCUUUACUAUAGCUUGACACUGAACAUUGAGCCUUGAUGUGUAGG AUAGGUGGGAGGCUUUGAAGUGUGGACGCCAGUCUGCAUGGAGCCGACCUUGAAAUACCACCCUUUAAUGUUUGAUGUUC UAACGUUGACCCGUAAUCCGGGUUGCGGACAGUGUCUGGUGGGUAGUUUGACUG(OMG)GGCGGUCUCCUCCUAAAGAGU AACGGAGGAGCACGAAGGUUGGCUAAUCCUGGUCGGACAUCAGGAGGUUAGUGCAAUGGCAUAAGCCAGCUUGACUGCGA GCGUGACGGCGCGAGCAGGUGCGAAAGCAGGUCAUAGUGAUCCGGUGGUUCUGAAUGGAAGGGCCAUCGCUCAACGGAUA AAAGGUACUCCG(2MG)GGA(H2U)AACAGGC(PSU)GAUACCGCCCAAGAGUUCAUAUCGACGGCGGUGUUUGGCA (OMC)CUCG(2MA)(PSU)GUCGGCUCAUCACAUCCUGGGGCUGAAGUAGGUCCCAAGGGUAUGGC(OMU)GUUCGCCAU UUAAAGUGGUACGCGAGC(PSU)GGGUUUAGAACGUCGUGAGACAG(PSU)(PSU)CGGUCCCUAUCUGCCGUGGGCGCU GGAGAACUGAGGGGGGCUGCUCCUAGUACGAGAGGACCGGAGUGGACGCAUCACUGGUGUUCGGGUUGUCAUGCCAAUGG CACUGCCCGGUAGCUAAAUGCGGAAGAGAUAAGUGCUGAAAGCAUCUAAGCACGAAACUUGCCCCGAGAUGAGUUCUCCC UGACCCUUUAAGGGUCCUGAAGGAACGUUGAAGACGACGACGUUGAUAGGCCGGGUGUGUAAGCGCAGCGAUGCGUUGAG CUAACCGGUACUAAUGAACCGUGAGGCUUAAUCUU 5S ribosomal RNA Escherichia coli 0.03879008999999999 1 UGCCUGGCGGCCGUAGCGCGGUGGUCCCACCUGACCCCAUGCCGAACUCAGAAGUGAAACGCCGUAGCGCCGAUGGUAGU GUGGGGUCUCCCCAUGCGAGAGUAGGGAACUGCCAGGCAU CP035706.1 16S ribosomal RNA Escherichia coli 0.499873406 2 AAAUUGAAGAGUUUGAUCAUGGCUCAGAUUGAACGCUGGCGGCAGGCCUAACACAUGCAAGUCGAACGGUAACAGGAAGA AGCUUGCUUCUUUGCUGACGAGUGGCGGACGGGUGAGUAAUGUCUGGGAAACUGCCUGAUGGAGGGGGAUAACUACUGGA AACGGUAGCUAAUACCGCAUAACGUCGCAAGACCAAAGAGGGGGACCUUCGGGCCUCUUGCCAUCGGAUGUGCCCAGAUG GGAUUAGCUAGUAGGUGGGGUAACGGCUCACCUAGGCGACGAUCCCUAGCUGGUCUGAGAGGAUGACCAGCCACACUGGA ACUGAGACACGGUCCAGACUCCUACGGGAGGCAGCAGUGGGGAAUAUUGCACAAUGGGCGCAAGCCUGAUGCAGCCAUGC CGCGUGUAUGAAGAAGGCCUUCGGGUUGUAAAGUACUUUCAGCGGGGAGGAAGGGAGUAAAGUUAAUACCUUUGCUCAUU GACGUUACCCGCAGAAGAAGCACCGGCUAACUCCGUGCCAGCAGCC(G7M)CGGUAAUACGGAGGGUGCAAGCGUUAAUC GGAAUUACUGGGCGUAAAGCGCACGCAGGCGGUUUGUUAAGUCAGAUGUGAAAUCCCCGGGCUCAACCUGGGAACUGCAU CUGAUACUGGCAAGCUUGAGUCUCGUAGAGGGGGGUAGAAUUCCAGGUGUAGCGGUGAAAUGCGUAGAGAUCUGGAGGAA UACCGGUGGCGAAGGCGGCCCCCUGGACGAAGACUGACGCUCAGGUGCGAAAGCGUGGGGAGCAAACAGGAUUAGAUACC CUGGUAGUCCACGCCGUAAACGAUGUCGACUUGGAGGUUGUGCCCUUGAGGCGUGGCUUCCGGAGCUAACGCGUUAAGUC GACCGCCUGGGGAGUACGGCCGCAAGGUUAAAACUCAAAUGAAUUGACGGGGGCCCGCACAAGCGGUGGAGCAUGUGGUU UAAUUCGAU(2MG)(5MC)AACGCGAAGAACCUUACCUGGUCUUGACAUCCACGGAAGUUUUCAGAGAUGAGAAUGUGCC UUCGGGAACCGUGAGACAGGUGCUGCAUGGCUGUCGUCAGCUCGUGUUGUGAAAUGUUGGGUUAAGUCCCGCAACGAGCG CAACCCUUAUCCUUUGUUGCCAGCGGUCCGGCCGGGAACUCAAAGGAGACUGCCAGUGAUAAACUGGAGGAAGGUGGGGA UGACGUCAAGUCAUCAUG(2MG)CCCUUACGACCAGGGCUACACACGUGCUACAAUGGCGCAUACAAAGAGAAGCGACCU CGCGAGAGCAAGCGGACCUCAUAAAGUGCGUCGUAGUCCGGAUUGGAGUCUGCAACUCGACUCCAUGAAGUCGGAAUCGC UAGUAAUCGUGGAUCAGAAUGCCACGGUGAAUACGUUCCCGGGCCUUGUACACACCG(4OC)CCGU(5MC)ACACCAUGG GAGUGGGUUGCAAAAGAAGUAGGUAGCUUAACCUUCGGGAGGGCGCUUACCACUUUGUGAUUCAUGACUGGGGUGAAGUC G(UR3)AACAAGGUAACCGUAGG(2MG)G(MA6)(MA6)CCUGCGGUUGGAUCACCUCCUUA Small ribosomal subunit protein uS2 Escherichia coli 0.026781669999999997 2 LEVO MATVSMRDMLKAGVHFGHQTRYWNPKMKPFIFGARNKVHIINLEKTVPMFNEALAELNKIASRKGKILFVGTKRAASEAV KDAALSCDQFFVNHRWLGGMLTNWKTVRQSIKRLKDLETQSQDGTFDKLTKKEALMRTRELEKLENSLGGIKDMGGLPDA LFVIDADHEHIAIKEANNLGIPVFAIVDTNSDPDGVDFVIPGNDDAIRAVTLYLGAVAATVREGRSQDLASQAEESFVEA E P0A7V0 Small ribosomal subunit protein uS3 Escherichia coli 0.026031316 2 LEVO MGQKVHPNGIRLGIVKPWNSTWFANTKEFADNLDSDFKVRQYLTKELAKASVSRIVIERPAKSIRVTIHTARPGIVIGKK GEDVEKLRKVVADIAGVPAQINIAEVRKPELDAKLVADSITSQLERRVMFRRAMKRAVQNAMRLGAKGIKVEVSGRLGGA EIARTEWYREGRVPLHTLRADIDYNTSEAHTTYGVIGVKVWIFKGEILGGMAAVEQPEKPAAQPKKQQRKGRK P0A7V3 Small ribosomal subunit protein uS4 Escherichia coli 0.023514199 2 LEVO MARYLGPKLKLSRREGTDLFLKSGVRAIDTKCKIEQAPGQHGARKPRLSDYGVQLREKQKVRRIYGVLERQFRNYYKEAA RLKGNTGENLLALLEGRLDNVVYRMGFGATRAEARQLVSHKAIMVNGRVVNIASYQVSPNDVVSIREKAKKQSRVKAALE LAEQREKPTWLEVDAGKMEGTFKRKPERSDLSADINEHLIVELYSK P0A7V8 Small ribosomal subunit protein uS5 Escherichia coli 0.017629398 2 LEVO MAHIEKQAGELQEKLIAVNRVSKTVKGGRIFSFTALTVVGDGNGRVGFGYGKAREVPAAIQKAMEKARRNMINVALNNGT LQHPVKGVHTGSRVFMQPASEGTGIIAGGAMRAVLEVAGVHNVLAKAYGSTNPINVVRATIDGLENMNSPEMVAAKRGKS VEEILGK P0A7W1 30S ribosomal protein S6 Escherichia coli 0.015727512 2 LEVO MRHYEIVFMVHPDQSEQVPGMIERYTAAITGAEGKIHRLEDWGRRQLAYPINKLHKAHYVLMNVEAPQEVIDELETTFRF NDAVIRSMVMRTKHAVTEASPMVKAKDERRERRDDFANETADDAEAGDSEEEEEE P02358 30S ribosomal protein S7 Escherichia coli 0.020055155999999998 2 LEVO MPRRRVIGQRKILPDPKFGSELLAKFVNILMVDGKKSTAESIVYSALETLAQRSGKSELEAFEVALENVRPTVEVKSRRV GGSTYQVPVEVRPVRRNALAMRWIVEAARKRGDKSMALRLANELSDAAENKGTAVKKREDVHRMAEANKAFAHYRWLSLR SFSHQAGASSKQPALGYLN P02359 Small ribosomal subunit protein uS8 Escherichia coli 0.014146557 2 LEVO MSMQDPIADMLTRIRNGQAANKAAVTMPSSKLKVAIANVLKEEGFIEDFKVEGDTKPELELTLKYFQGKAVVESIQRVSR PGLRIYKRKDELPKVMAGLGIAVVSTSKGVMTDRAARQAGLGGEIICYVA P0A7W7 Small ribosomal subunit protein uS9 Escherichia coli 0.01488627 2 LEVO MAENQYYGTGRRKSSAARVFIKPGNGKIVINQRSLEQYFGRETARMVVRQPLELVDMVEKLDLYITVKGGGISGQAGAIR HGITRALMEYDESLRSELRKAGFVTRDARQVERKKVGLRKARRRPQFSKR P0A7X3 30S ribosomal protein S10 Escherichia coli 0.011755597 2 LEVO MQNQRIRIRLKAFDHRLIDQATAEIVETAKRTGAQVRGPIPLPTRKERFTVLISPHVNKDARDQYEIRTHLRLVDIVEPT EKTVDALMRLDLAAGVDVQISLG P0A7R5 Small ribosomal subunit protein uS11 Escherichia coli 0.013870974999999999 2 LEVO MAKAPIRARKRVRKQVSDGVAHIHASFNNTIVTITDRQGNALGWATAGGSGFRGSRKSTPFAAQVAAERCADAVKEYGIK NLEVMVKGPGPGRESTIRALNAAGFRITNITDVTPIPHNGCRPPKKRRV P0A7R9 Small ribosomal subunit protein uS12 Escherichia coli 0.013768156999999998 2 LEVO MATVNQLVRKPRARKVAKSNVPALEACPQKRGVCTRVYTTTPKKPNSALRKVCRVRLTNGFEVTSYIGGEGHNLQEHSVI LIRGGRVKDLPGVRYHTVRGALDCSGVKDRKQARSKYGVKRPKA P0A7S3 Small ribosomal subunit protein uS13 Escherichia coli 0.013128467 2 LEVO MARIAGINIPDHKHAVIALTSIYGVGKTRSKAILAAAGIAEDVKISELSEGQIDTLRDEVAKFVVEGDLRREISMSIKRL MDLGCYRGLRHRRGLPVRGQRTKTNARTRKGPRKPIKK P0A7S9 Small ribosomal subunit protein uS14 Escherichia coli 0.011606559999999998 2 LEVO MAKQSMKAREVKRVALADKYFAKRAELKAIISDVNASDEDRWNAVLKLQTLPRDSSPSRQRNRCRQTGRPHGFLRKFGLS RIKVREAAMRGEIPGLKKASW P0AG59 30S ribosomal protein S15 Escherichia coli 0.010290816 2 LEVO MSLSTEATAKIVSEFGRDANDTGSTEVQVALLTAQINHLQGHFAEHKKDHHSRRGLLRMVSQRRKLLDYLKRKDVARYTQ LIERLGLRR P0ADZ4 30S ribosomal protein S16 Escherichia coli 0.009207571999999999 1 LEVO MVTIRLARHGAKKRPFYQVVVADSRNARNGRFIERVGFFNPIASEKEEGTRLDLDRIAHWVGQGATISDRVAALIKEVNK AA P0A7T3 Small ribosomal subunit protein uS17 Escherichia coli 0.009724491 2 LEVO MTDKIRTLQGRVVSDKMEKSIVVAIERFVKHPIYGKFIKRTTKLHVHDENNECGIGDVVEIRECRPLSKTKSWTLVRVVE KAVL P0AG63 Small ribosomal subunit protein bS18 Escherichia coli 0.009005471999999999 2 LEVO MARYFRRRKFCRFTAEGVQEIDYKDIATLKNYITESGKIVPSRITGTRAKYQRQLARAIKRARYLSLLPYTDRHQ P0A7T7 Small ribosomal subunit protein uS19 Escherichia coli 0.010455355 2 LEVO MPRSLKKGPFIDLHLLKKVEKAVESGDKKPLRTWSRRSTIFPNMIGLTIAVHNGRQHVPVFVTDEMVGHKLGEFAPTRTY RGHAADKKAKKK P0A7U3 Small ribosomal subunit protein bS20 Escherichia coli 0.009708464 1 LEVO MANIKSAKKRAIQSEKARKHNASRRSMMRTFIKKVYAAIEAGDKAAAQKAFNEMQPIVDRQAAKGLIHKNKAARHKANLT AQINKLA P0A7U7 30S ribosomal protein S21 Escherichia coli 0.008524039 2 LEVO MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKLARENARRTRLY P68679 messenger RNA Escherichia coli 0.020786526999999996 1 AAAAAGGACGGUGAGCUUCGUGACAAUUAAAAAAAAGGUUUCGCGCUGGGCCAAAAUCGAAAAA tRNA-Trp (P-site) Escherichia coli 0.024628865 1 AGGGGCG(4SU)AGUUCAA(H2U)(H2U)GG(H2U)AGAGCACCGGU(PSU)UCCA(MIA)AACCGGGU(G7M)UUGGGA G(5MU)(PSU)CGAGUCUCUCCGCCCCUGCCA tRNA-Phe (P-site) Escherichia coli 0.024651904 1 GCCCGGA(4SU)AGCUCAG(H2U)(H2U)GG(H2U)AGAGCAGGGGA(PSU)UGAA(MIA)A(PSU)CCCCGU(G7M)UC CUUGG(5MU)(PSU)CGAUUCCGAGUCCGGGCACCA tRNA-Arg (E-site) Escherichia coli 0.024978115000000002 1 GCAUCCG(4SU)AGCUCAGC(H2U)GGA(H2U)AGAGUACUCGG(RSP)UICG(2MA)ACCGAGCG(G7M)(3AU)CGGA GG(5MU)(PSU)CGAAUCCUCCCGGAUGCACCA tRNA-Val (A-site) Escherichia coli 0.024617767999999998 1 GGGUGA(4SU)UAGCUCAGCUGGGAGAGCACCUCCCU(CM0)AC(6MZ)AGGAGGGG(7MG)UCGGCGG(5MU)(PSU)C GAUCCCGUCAUCACCCACCA CP053787.1 tRNA-Ala (A-site) Escherichia coli 0.024555653999999996 1 GGGGCUAUAGCUCAGC(H2U)GGGAGAGCGCUUGCAUGGCAUGCAAGAG(G7M)UCAGCGG(5MU)(PSU)CGAUCCCGC UUAGCUCCACCA CP053605.1 30S ribosomal protein S1 Escherichia coli 0.061238887 1 LEVO MTESFAQLFEESLKEIETRPGSIVRGVVVAIDKDVVLVDAGLKSESAIPAEQFKNAQGELEIQVGDEVDVALDAVEDGFG ETLLSREKAKRHEAWITLEKAYEDAETVTGVINGKVKGGFTVELNGIRAFLPGSLVDVRPVRDTLHLEGKELEFKVIKLD QKRNNVVVSRRAVIESENSAERDQLLENLQEGMEVKGIVKNLTDYGAFVDLGGVDGLLHITDMAWKRVKHPSEIVNVGDE ITVKVLKFDRERTRVSLGLKQLGEDPWVAIAKRYPEGTKLTGRVTNLTDYGCFVEIEEGVEGLVHVSEMDWTNKNIHPSK VVNVGDVVEVMVLDIDEERRRISLGLKQCKANPWQQFAETHNKGDRVEGKIKSITDFGIFIGLDGGIDGLVHLSDISWNV AGEEAVREYKKGDEIAAVVLQVDAERERISLGVKQLAEDPFNNWVALNKKGAIVTGKVTAVDAKGATVELADGVEGYLRA SEASRDRVEDATLVLSVGDEVEAKFTGVDRKNRAISLSVRAKDEADEKDAIATVNKQEDANFSNNAMAEAFKAAKGE P0AG67 Large ribosomal subunit protein uL1 Escherichia coli 0.02476566 1 LEVO MAKLTKRMRVIREKVDATKQYDINEAIALLKELATAKFVESVDVAVNLGIDARKSDQNVRGATVLPHGTGRSVRVAVFTQ GANAEAAKAAGAELVGMEDLADQIKKGEMNFDVVIASPDAMRVVGQLGQVLGPRGLMPNPKVGTVTPNVAEAVKNAKAGQ VRYRNDKNGIIHTTIGKVDFDADKLKENLEALLVALKKAKPTQAKGVYIKKVSISTTMGAGVAVDQAGLSASVN P0A7L0 50S ribosomal protein L2 Escherichia coli 0.029923619 1 LEVO MAVVKCKPTSPGRRHVVKVVNPELHKGKPFAPLLEKNSKSGGRNNNGRITTRHIGGGHKQAYRIVDFKRNKDGIPAVVER LEYDPNRSANIALVLYKDGERRYILAPKGLKAGDQIQSGVDAAIKPGNTLPMRNIPVGSTVHNVEMKPGKGGQLARSAGT YVQIVARDGAYVTLRLRSGEMRKVEADCRATLGEVGNAEHMLRVLGKAGAARWRGVRPTVRGTAMNPVDHPHGGGEGRNF GKHPVTPWGVQTKGKKTRSNKRTDKFIVRRRSK P60422 50S ribosomal protein L5 Escherichia coli 0.020333611 1 LEVO MAKLHDYYKDEVVKKLMTEFNYNSVMQVPRVEKITLNMGVGEAIADKKLLDNAAADLAAISGQKPLITKARKSVAGFKIR QGYPIGCKVTLRGERMWEFFERLITIAVPRIRDFRGLSAKSFDGRGNYSMGVREQIIFPEIDYDKVDRVRGLDITITTTA KSDEEGRALLAAFDFPFRK P62399 50S ribosomal protein L33 Escherichia coli 0.006388631 1 LEVO MAKGIREKIKLVSSAGTGHFYTTTKNKRTKPEKLELKKFDPVVRQHVIYKEAKIK P0A7N9 50S ribosomal protein L16 Escherichia coli 0.015312269 1 LEVO MLQPKRTKFRKMHKGRNRGLAQGTDVSFGSFGLKAVGRGRLTARQIEAARRAMTRAVKRQGKIWIRVFPDKPITEKPLAV RMGKGKGNVEYWVALIQPGKVLYEMDGVPEELAREAFKLAAAKLPIKTTFVTKTVM P0ADY7 50S ribosomal protein L9 Escherichia coli 0.01578902 1 LEVO MQVILLDKVANLGSLGDQVNVKAGYARNFLVPQGKAVPATKKNIEFFEARRAELEAKLAEVLAAANARAEKINALETVTI ASKAGDEGKLFGSIGTRDIADAVTAAGVEVAKSEVRLPNGVLRTTGEHEVSFQVHSEVFAKVIVNVVAE P0A7R1 50S ribosomal protein L34 Escherichia coli 0.005397463 1 LEVO MKRTFQPSVLKRNRSHGFRARMATKNGRQVLARRRAKGRARLTVSK P0A7P5 50S ribosomal protein L15 Escherichia coli 0.015008470999999999 1 LEVO MRLNTLSPAEGSKKAGKRLGRGIGSGLGKTGGRGHKGQKSRSGGGVRRGFEGGQMPLYRRLPKFGFTSRKAAITAEIRLS DLAKVEGGVVDLNTLKAANIIGIQIEFAKVILAGEVTTPVTVRGLRVTKGARAAIEAAGGKIEE P02413 Nascent chain Escherichia coli 0.0010872349999999998 1 LEVO AAAAVRNARW 50S ribosomal protein L18 Escherichia coli 0.012794667999999999 1 LEVO MDKKSARIRRATRARRKLQELGATRLVVHRTPRHIYAQVIAPNGSEVLVAASTVEKAIAEQLKYTGNKDAAAAVGKAVAE RALEKGIKDVSFDRSGFQYHGRVQALADAAREAGLQF P0C018 50S ribosomal protein L27 Escherichia coli 0.00914654 1 LEVO MAHKKAGGSTRNGRDSEAKRLGVKRFGGESVLAGSIIVRQRGTKFHAGANVGCGRDHTLFAKADGKVKFEVKGPKNRKFI SIEAE P0A7L8 ZINC ION 6.5409e-05 2 ZN 1,4-DIAMINOBUTANE 8.815099999999999e-05 2 PUT SPERMIDINE 0.000145246 1 SPD MAGNESIUM ION 2.4305e-05 297 MG ALANINE 8.9093e-05 1 ALA singleParticle particle 7.6 Quantifoil R2/2 COPPER 300 CARBON HOLEY GLOW DISCHARGE 20 AIR 0.037

Operated at 15 mA, easiGlow Discharge Cleaning system (PELCO).

ETHANE 75 277 FEI VITROBOT MARK IV

Withdrawn samples were spotted directly onto freshly glow-discharged holey carbon grids, blotted for 1-2 s, and flash frozen in liquid ethane using a Vitrobot Mark IV plunger (ThermoFisher Scientific) after a wait time of 40 s at 4 degrees Celsius..

In vitro translation reactions were performed in the PURE translation system using the PURExpress delta ribosome kit (NEB, #E3313S). Translation reactions were supplemented with 0.8 U/uL RNAsin Plus RNase Inhibitor (Promega, N261B). SolA, factor mix, and RNAsin Plus were combined on ice, followed by a preincubation at 37 degrees Celcius for 2 min, and added directly to polysomes (700 nM final concentration) that had been preincubated at 37 degrees Celsius for 2 min. After 1 min reaction time, 4 ul of the reaction mixture were withdrawn for plunge freezing.

FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 0.5 2.0 81000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN 80.0 82.0 GATAN K3 BIOQUANTUM (6k x 4k) 1 8982 1.13 45.0 1 1883839 Gctf cryoSPARC 3.3.1 PHASE FLIPPING AND AMPLITUDE CORRECTION C1 BACK PROJECTION 3.28 FSC 0.143 CUT-OFF cryoSPARC 3.3.1 63618 MAXIMUM LIKELIHOOD cryoSPARC 3.3.1 MAXIMUM LIKELIHOOD cryoSPARC 3.3.1 cryoSPARC 3.3.1 7N1P PDB experimental model OTHER

The atomic model of the E. coli 70S ribosome was initially docked into the postprocessed density maps with UCSF Chimera and manually adjusted in Coot. As the modelled mRNA represents a mixture of all isolated native E. coli mRNAs bound to polysomes, a random sense mRNA sequence was chosen, except for the five codons, which were adjusted to the anticodons. Ligand restraints were generated using phenix.eLBOW. The full-length model for protein bS1 was generated using AlphaFold and manually placed and adjusted in Coot. All models were refined over multiple rounds using the module phenix.real_space_refine in PHENIX and interactive model building and refinement in Coot, using libG restraints for the RNAs. The quality of all refined models was assessed using the comprehensive model validation function in PHENIX and wwPDB validation server.

CC REAL 87.200000000000003 emd_18875_msk_1.map emd_18875_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 702 702 702 0 0 0 702 702 702 744.11993 744.11993 744.11993 90.0 90.0 90.0 X Y Z -6.573221 15.078324 0.000000003755008 0.99999994 1.06 1.06 1.06 AUTHOR ::::EMDATABANK.org::::EMD-18875:::: Cryo-EM reconstruction of the E. coli disome complex (local refinement of non-rotated disome interface). Half map A emd_18875_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 702 702 702 0 0 0 702 702 702 744.11993 744.11993 744.11993 90.0 90.0 90.0 X Y Z -6.8564034 14.965335 -0.000000000802377 1.0 1.06 1.06 1.06 AUTHOR ::::EMDATABANK.org::::EMD-18875:::: Cryo-EM reconstruction of the E. coli disome complex (local refinement of non-rotated disome interface). Half map B