7YQH: 8-subunit Smc5/6

Cryo-EM structure of 8-subunit Smc5/6. Determined by electron microscopy at 5.6 Å resolution. Released 31 Jan 2024.

Method
Electron microscopy
Resolution
5.6 Å
Organism
Saccharomyces cerevisiae S288C
Chains
8
Atoms
32,769
Mol. weight
521.32 kDa
Released
31 Jan 2024

Explore 7YQH in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

7YQH contains 174 α-helices and 87 β-strands across 8 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 34 helices, 25 β-strands

ElementResiduesLengthSheet
α-helix29-313
α-helix381
β-strand42-5091
β-strand53-5971
β-strand65-6842
α-helix75-8511
α-helix90-923
α-helix99-1024
β-strand109-11791
β-strand134-14291
β-strand149-15241
β-strand156-15831
α-helix159-16810
β-strand179-18023
α-helix182-1898
α-helix193-20311
α-helix207-26862
α-helix272-388117
α-helix392-3943
α-helix397-44751
α-helix455-4584
α-helix460-47415
α-helix486-4894
β-strand49114
α-helix495-50410
α-helix507-5104
β-strand513-51535
α-helix527-5293
β-strand536-53835
α-helix545-5462
β-strand560-56126
β-strand56714
α-helix570-58011
α-helix582-5843
β-strand586-58726
α-helix594-6007
β-strand60417
β-strand60717
β-strand614-61638
β-strand619-62248
β-strand636-63948
α-helix658-780123
α-helix783-82442
α-helix828-8325
α-helix836-8427
α-helix847-86216
α-helix867-88115
α-helix892-90918
α-helix913-94432
β-strand953-95649
α-helix961-9633
β-strand965-96849
α-helix988-100114
β-strand1012-101323
α-helix1024-103714
β-strand1045-104622
β-strand1062-106542
α-helix1073-10742
β-strand108311
Chain B: 36 helices, 23 β-strands
ElementResiduesLengthSheet
α-helix13-3523
α-helix77-782
β-strand82-88710
β-strand90111
β-strand96-98310
β-strand104-107412
α-helix109-1102
α-helix117-12610
α-helix130-1334
α-helix139-1424
β-strand143111
α-helix1441
β-strand149-157910
α-helix166-1694
β-strand172-180910
α-helix184-1852
β-strand186-188310
β-strand190113
β-strand191110
β-strand196113
α-helix202-21110
β-strand221-222212
α-helix224-2318
α-helix236-24611
α-helix250-425176
α-helix429-49062
α-helix506-5105
α-helix515-52713
α-helix531-5344
β-strand541-542214
α-helix550-5589
α-helix569-57911
β-strand59018
α-helix593-5953
α-helix605-6062
α-helix610-6112
α-helix612-6154
β-strand616-617214
α-helix621-6288
α-helix648-6514
α-helix6691
β-strand670115
α-helix6711
β-strand678115
α-helix702-75857
α-helix765-881117
α-helix897-91822
α-helix922-98362
α-helix984-9863
β-strand989-995716
β-strand1000-1006716
β-strand1014-1015216
α-helix1021-103616
β-strand1043-1046412
α-helix1050-10523
α-helix1056-107015
β-strand1076-1080512
α-helix1085-10873
β-strand1096-1099412
Chain C: 10 helices, 5 β-strands
ElementResiduesLengthSheet
α-helix16-249
α-helix27-293
α-helix31-5121
α-helix60-10041
α-helix108-1147
α-helix122-1287
α-helix130-1323
α-helix142-15514
β-strand195-197317
β-strand203-204217
α-helix209-2135
β-strand219-220218
β-strand229-230218
β-strand235-237317
α-helix239-26628
Chain D: 22 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix88-936
α-helix110-1123
α-helix132-15019
α-helix163-17210
α-helix182-1898
β-strand198-199219
α-helix209-22012
α-helix227-2293
α-helix236-2427
α-helix246-2538
α-helix257-2615
β-strand274-275219
β-strand281120
α-helix284-2929
α-helix301-31515
α-helix318-3225
α-helix329-3379
α-helix340-35011
α-helix356-36510
α-helix367-3693
α-helix370-3778
α-helix388-40215
α-helix405-4095
α-helix428-44013
α-helix448-46215
Chain E: 35 helices, 5 β-strands
ElementResiduesLengthSheet
β-strand12121
β-strand22121
α-helix26-4015
α-helix44-5310
α-helix63-653
α-helix66-7510
α-helix80-9011
α-helix100-11617
α-helix125-14117
α-helix143-1475
α-helix191-1944
β-strand197122
β-strand202122
α-helix2031
α-helix204-2085
α-helix214-22411
α-helix230-2356
α-helix236-2405
α-helix241-25717
α-helix258-2625
α-helix271-2777
α-helix280-2867
α-helix293-3019
α-helix308-3092
α-helix310-3123
α-helix313-3153
β-strand336120
α-helix340-36324
α-helix3661
α-helix378-39013
α-helix395-4028
α-helix414-42916
α-helix434-4363
α-helix438-4414
α-helix445-45713
α-helix463-4642
α-helix472-49726
α-helix506-52823
α-helix534-5363
α-helix539-5457
Chain F: 13 helices, 16 β-strands
ElementResiduesLengthSheet
α-helix14-2714
β-strand32123
α-helix34-4512
α-helix57-7822
β-strand81-83324
α-helix851
β-strand86125
α-helix871
α-helix91-966
β-strand97126
β-strand100126
β-strand131125
β-strand133123
β-strand134-136324
α-helix152-16716
α-helix183-19412
β-strand206-207227
α-helix215-2184
α-helix224-23613
β-strand240-242328
β-strand248-250328
α-helix252-2576
α-helix261-2644
β-strand282127
β-strand305127
α-helix307-3148
β-strand321129
β-strand326129
β-strand334-335227
Chain G: 17 helices, 6 β-strands
ElementResiduesLengthSheet
α-helix8-2417
α-helix26-4116
α-helix451
β-strand46-47230
α-helix48-6215
α-helix65-684
α-helix69-7911
α-helix80-845
β-strand86-90530
α-helix94-985
β-strand122-127630
α-helix135-15016
α-helix178-19417
β-strand199-200231
α-helix201-21111
α-helix218-2203
α-helix227-23610
β-strand240-243431
β-strand255-258431
α-helix260-2656
α-helix268-2769
α-helix283-2853
α-helix290-2978
Chain H: 7 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix222-2265
α-helix242-2443
β-strand305-306232
α-helix309-3124
α-helix320-33213
β-strand340-341233
β-strand347-348233
β-strand349-350232
α-helix360-37213
α-helix374-3752
α-helix384-39411

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Structural maintenance of chromosomes protein 5Aprotein1093Saccharomyces cerevisiae S288CQ08204 (AlphaFold model)
Structural maintenance of chromosomes protein 6Bprotein1114Saccharomyces cerevisiae S288CQ12749 (AlphaFold model)
E3 SUMO-protein ligase MMS21Cprotein267Saccharomyces cerevisiae S288CP38632 (AlphaFold model)
DNA repair protein KRE29Dprotein464Saccharomyces cerevisiae S288CP40026 (AlphaFold model)
Non-structural maintenance of chromosome element 5Eprotein556Saccharomyces cerevisiae S288CQ03718
Non-structural maintenance of chromosomes element 1Fprotein336Saccharomyces cerevisiae S288CQ07913
Non-structural maintenance of chromosome element 3Gprotein303Saccharomyces cerevisiae S288CQ05541
Non-structural maintenance of chromosomes element 4Hprotein402Saccharomyces cerevisiae S288CP43124
Sequence of entity 1 (A), FASTA
>7YQH_1 Structural maintenance of chromosomes protein 5 (chains A)
MTSLIDLGRYVERTHHGEDTEPRSKRVKIAKPDLSSFQPGSIIKIRLQDFVTYTLTEFNL
SPSLNMIIGPNGSGKSTFVCAVCLGLAGKPEYIGRSKKVEDFIKNGQDVSKIEITLKNSP
NVTDIEYIDARDETIKITRIITRSKRRSDYLINDYQVSESVVKTLVAQLNIQLDNLCQFL
SQERVEEFARLKSVKLLVETIRSIDASLLDVLDELRELQGNEQSLQKDLDFKKAKIVHLR
QESDKLRKSVESLRDFQNKKGEIELHSQLLPYVKVKDHKEKLNIYKEEYERAKANLRAIL
KDKKPFANTKKTLENQVEELTEKCSLKTDEFLKAKEKINEIFEKLNTIRDEVIKKKNQNE
YYRGRTKKLQATIISTKEDFLRSQEILAQTHLPEKSVFEDIDIKRKEIINKEGEIRDLIS
EIDAKANAINHEMRSIQRQAESKTKSLTTTDKIGILNQDQDLKEVRDAVLMVREHPEMKD
KILEPPIMTVSAINAQFAAYLAQCVDYNTSKALTVVDSDSYKLFANPILDKFKVNLRELS
SADTTPPVPAETVRDLGFEGYLSDFITGDKRVMKMLCQTSKIHTIPVSRRELTPAQIKKL
ITPRPNGKILFKRIIHGNRLVDIKQSAYGSKQVFPTDVSIKQTNFYQGSIMSNEQKIRIE
NEIINLKNEYNDRKSTLDALSNQKSGYRHELSELASKNDDINREAHQLNEIRKKYTMRKS
TIETLREKLDQLKREARKDVSQKIKDIDDQIQQLLLKQRHLLSKMASSMKSLKNCQKELI
STQILQFEAQNMDVSMNDVIGFFNEREADLKSQYEDKKKFVKEMRDTPEFQSWMREIRSY
DQDTKEKLNKVAEKYEEEGNFNLSFVQDVLDKLESEIAMVNHDESAVTILDQVTAELREL
EHTVPQQSKDLETIKAKLKEDHAVLEPKLDDIVSKISARFARLFNNVGSAGAVRLEKPKD
YAEWKIEIMVKFRDNAPLKKLDSHTQSGGERAVSTVLYMIALQEFTSAPFRVVDEINQGM
DSRNERIVHKAMVENACAENTSQYFLITPKLLTGLHYHEKMRIHCVMAGSWIPNPSEDPK
MIHFGETSNYSFD
Sequence of entity 2 (B), FASTA
>7YQH_2 Structural maintenance of chromosomes protein 6 (chains B)
MISTTISGKRPIEQVDDELLSLTAQQENEEQQQQRKRRRHQFAPMTQFNSNTLDEDSGFR
SSSDVATADQDNFLEESPSGYIKKVILRNFMCHEHFELELGSRLNFIVGNNGSGKSAILT
AITIGLGAKASETNRGSSLKDLIREGCYSAKIILHLDNSKYGAYQQGIFGNEIIVERIIK
RDGPASFSLRSENGKEISNKKKDIQTVVDYFSVPVSNPMCFLSQDAARSFLTASTSQDKY
SHFMKGTLLQEITENLLYASAIHDSAQENMALHLENLKSLKAEYEDAKKLLRELNQTSDL
NERKMLLQAKSLWIDVAHNTDACKNLENEISGIQQKVDEVTEKIRNRQEKIERYTSDGTT
IEAQIDAKVIYVNEKDSEHQNARELLRDVKSRFEKEKSNQAEAQSNIDQGRKKVDALNKT
IAHLEEELTKEMGGDKDQMRQELEQLEKANEKLREVNNSLVVSLQDVKNEERDIQHERES
ELRTISRSIQNKKVELQNIAKGNDTFLMNFDRNMDRLLRTIEQRKNEFETPAIGPLGSLV
TIRKGFEKWTRSIQRAISSSLNAFVVSNPKDNRLFRDIMRSCGIRSNIPIVTYCLSQFDY
SKGRAHGNYPTIVDALEFSKPEIECLFVDLSRIERIVLIEDKNEARNFLQRNPVNVNMAL
SLRDRRSGFQLSGGYRLDTVTYQDKIRLKVNSSSDNGTQYLKDLIEQETKELQNIRDRYE
EKLSEVRSRLKEIDGRLKSTKNEMRKTNFRMTELKMNVGKVVDTGILNSKINERKNQEQA
IASYEAAKEELGLKIEQIAQEAQPIKEQYDSTKLALVEAQDELQQLKEDINSRQSKIQKY
KDDTIYYEDKKKVYLENIKKIEVNVAALKEGIQRQIQNACAFCSKERIENVDLPDTQEEI
KRELDKVSRMIQKAEKSLGLSQEEVIALFEKCRNKYKEGQKKYMEIDEALNRLHNSLKAR
DQNYKNAEKGTCFDADMDFRASLKVRKFSGNLSFIKDTKSLEIYILTTNDEKARNVDTLS
GGEKSFSQMALLLATWKPMRSRIIALDEFDVFMDQVNRKIGTTLIVKKLKDIARTQTIII
TPQDIGKIADIDSSGVSIHRMRDPERQNNSNFYN
Sequence of entity 3 (C), FASTA
>7YQH_3 E3 SUMO-protein ligase MMS21 (chains C)
MALNDNPIPKSVPLHPKSGKYFHNLHARDLSNIYQQCYKQIDETINQLVDSTSPSTIGIE
EQVADITSTYKLLSTYESESNSFDEHIKDLKKNFKQSSDACPQIDLSTWDKYRTGELTAP
KLSELYLNMPTPEPATMVNNTDTLKILKVLPYIWNDPTCVIPDLQNPADEDDLQIEGGKI
ELTCPITCKPYEAPLISRKCNHVFDRDGIQNYLQGYTTRDCPQAACSQVVSMRDFVRDPI
MELRCKIAKMKESQEQDKRSSQAIDVL
Sequence of entity 4 (D), FASTA
>7YQH_4 DNA repair protein KRE29 (chains D)
MGSVNSSPNEEFETVPDSQISGFDSPLIPTSVGSYFRDDDDDEKVHPNFISDPENDSLNS
DEEFSSLENSDLNLSGAKAESGDDFDPILKRTIISKRKAPSNNEDEEIVKTPRKLVNYVP
LKIFNLGDSFDDTITTTVAKLQDLKKEILDSPRSNKSIVITSNTVAKSELQKSIKFSGSI
PEIYLDVVTKETISDKYKDWHFISKNCHYEQLMDLEMKDTAYSFLFGSSRSQGKVPEFVH
LKCPSITNLLVLFGVNQEKCNSLKINYEKKENSRYDNLCTIFPVNKMLKFLMYFYSDDDN
DDVREFFLKAFICLILDRKVFNAMESDHRLCFKVLELFNEAHFINSYFEIVDKNDFFLHY
RLLQIFPHLQSALLRRRFSEKQGRTETIQQNIIKEFNEFFDCKNYKNLLYFILTMYGSKF
IPFGPKCQVTEYFKDCILDISNETTNDVEISILKGILNLFSKIR
Sequence of entity 5 (E), FASTA
>7YQH_5 Non-structural maintenance of chromosome element 5 (chains E)
MDGALINSVLYVSPRNGAHYFVELTEKHLLAFEMLNSMCLLENYDHVLLFLECQFGKSHN
LAVIPFDIILVLFTLSTLSEYYKEPILRANDPYNTSRETLSRRALKLLQKYLAILKEFDS
EQYNLYDLELLRCQFFLAIDTLTPKKQKWGFDRFRRTKSESGVTYRQNASVDPELDQAKT
FKNPYRSYISCLEQRNTILGNRLLNLKLNEPGEFINMILWTLSNSLQESTPLFLSSHEIW
MPLLEILIDLFSCRQDYFIQHEVAQNVSKSLFVQRLSESPLAVFFESLNTRNFANRFSEY
VFLNCDYKLPSDNYATPVHPVYNGENTIVDTYIPTIKCSPLYKSQKSLALRRKLIGSCFK
LLLRVPDGHRLITPRIVADDVIQGISRTLASFNDILQFKKFFMTENLSQESYFIPLLAEG
TLSEILKDTQECVVILTLVENLSDGVSFCNEVIGLVKSKCFAFTEQCSQASYEEAVLNIE
KCDVCLLVLLRYLLHLIGTEAILDAKEQLEMLHAIEKNDSGRRQWAKALNLGNDPPLLYP
IVSQMFGVHDKSVIIE
Sequence of entity 6 (F), FASTA
>7YQH_6 Non-structural maintenance of chromosomes element 1 (chains F)
MEVHEEQVSAPVTGDATAKYLLQYILSARGICHENALILALMRLETDASTLNTEWSIQQW
VDKLNDYINAINVKLNLLGYKIIRINHGIGRNAVTLKAKQNFESFEDNTAIRAHNNDYAV
LQSIVLPESNRFFVYVNLASTEETKLATRFNQNEIEFMKWAIEQFMISGETIVEGPALET
SIIVKEVNRILVAATGDSNLAKWRKFSTFTVGSTNLFQFQELTATDIEDLLLRLCELKWF
YRTQEGKFGIDLRCIAELEEYLTSMYNLNTCQNCHKLAIQGVRCGNESCREENEETGENS
LSQIWHVDCFKHYITHVSKNCDRCGSSLITEGVYVI
Sequence of entity 7 (G), FASTA
>7YQH_7 Non-structural maintenance of chromosome element 3 (chains G)
MSSIDNDSDVDLTEDLAVAKIVKENPVARKMVRYILSRGESQNSIITRNKLQSVIHEAAR
EENIAKPSFSKMFMDINAILYNVYGFELQGLPSKNNMNAGGNGSNSNTNKSMPEPLGHRA
QKFILLNNVPHSKNFDDFKILQSAHTYEELIVTGEYIGDDIASGTSNTLESKLSTDRDLV
YKGVLSVILCIVFFSKNNILHQELIKFLETFGIPSDGSKIAILNITIEDLIKSLEKREYI
VRLEEKSDTDGEVISYRIGRRTQAELGLESLEKLVQEIMGLEKEQTKSLHDDIIKSIGDS
YSI
Sequence of entity 8 (H), FASTA
>7YQH_8 Non-structural maintenance of chromosomes element 4 (chains H)
MSSTVISRKRRNSTVTEPDSSGETRKQKKSRSDEKSSSSKDGDPQLEFKVLQGYRDLESE
MHKGRAQVTRTGDIGVAMDNLNAVDSLFNKVIGIKNNGLFAHDARAMVSISELAQISVRN
LKFDDSRSMVNLENIVNSLKRYMLKEHFKLNNIAENRNDLTLAADEQSAADQQEESDGDI
DRTPDDNHTDKATSSFKATSMRHSYLQQFSHYNEFSQFNWFRIGALYNTISKNAPITDHL
MGPLSIEKKPRVLTQRRRNNDQVGEKITAEKITQHSLNSTQQETTPEQVKKCFKKLSKKL
GPEGSINLFKFIIDPNSFSRSIENLFYTSFLIKEGKLLMEHDEEGLPTIKIKQSISHTDS
RSKEIERQRRRAAHQNHIIFQMDMPTWRKLIKKYNITSPFLD

Primary citation

Cryo-EM structures of Smc5/6 in multiple states reveal its assembly and functional mechanisms. Li, Q., Zhang, J., Haluska, C. et al. Nat Struct Mol Biol (2024). DOI 10.1038/s41594-024-01319-1 · PubMed

Other PDB entries of the same protein (UniProt Q08204 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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