5bk4

Cryo-EM structure of Mcm2-7 double hexamer on dsDNA

Method: ELECTRON MICROSCOPY

▼

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA replication licensing factor MCM2

Saccharomyces cerevisiae

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 12 DNA 2	DNA replication licensing factor MCM3 × 2 （P24279） DNA replication licensing factor MCM4 × 2 （P30665） DNA replication licensing factor MCM5 × 2 （P29496） DNA replication licensing factor MCM6 × 2 （P53091） DNA replication licensing factor MCM7 × 2 （P38132） DNA (60-mer), strand 1 × 1 DNA (60-mer), strand 2 × 1 ADENOSINE-5'-DIPHOSPHATE × 8	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MCM2_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain 2； PDBConstruct 1–868； UniProt 1–868 Author chain A； PDBConstruct 1–868； UniProt 1–868

DNA replication licensing factor MCM3

Saccharomyces cerevisiae

UniProt P24279

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 12 DNA 2	DNA replication licensing factor MCM2 × 2 （P29469） DNA replication licensing factor MCM4 × 2 （P30665） DNA replication licensing factor MCM5 × 2 （P29496） DNA replication licensing factor MCM6 × 2 （P53091） DNA replication licensing factor MCM7 × 2 （P38132） DNA (60-mer), strand 1 × 1 DNA (60-mer), strand 2 × 1 ADENOSINE-5'-DIPHOSPHATE × 8	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MCM3_YEAST
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain 3； PDBConstruct 1–971； UniProt 1–971 Author chain B； PDBConstruct 1–971； UniProt 1–971

DNA replication licensing factor MCM4

Saccharomyces cerevisiae

UniProt P30665

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 12 DNA 2	DNA replication licensing factor MCM2 × 2 （P29469） DNA replication licensing factor MCM3 × 2 （P24279） DNA replication licensing factor MCM5 × 2 （P29496） DNA replication licensing factor MCM6 × 2 （P53091） DNA replication licensing factor MCM7 × 2 （P38132） DNA (60-mer), strand 1 × 1 DNA (60-mer), strand 2 × 1 ADENOSINE-5'-DIPHOSPHATE × 8	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MCM4_YEAST
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain 4； PDBConstruct 1–933； UniProt 1–933 Author chain C； PDBConstruct 1–933； UniProt 1–933

DNA replication licensing factor MCM5

Saccharomyces cerevisiae

UniProt P29496

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 12 DNA 2	DNA replication licensing factor MCM2 × 2 （P29469） DNA replication licensing factor MCM3 × 2 （P24279） DNA replication licensing factor MCM4 × 2 （P30665） DNA replication licensing factor MCM6 × 2 （P53091） DNA replication licensing factor MCM7 × 2 （P38132） DNA (60-mer), strand 1 × 1 DNA (60-mer), strand 2 × 1 ADENOSINE-5'-DIPHOSPHATE × 8	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MCM5_YEAST
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain 5； PDBConstruct 1–775； UniProt 1–775 Author chain D； PDBConstruct 1–775； UniProt 1–775

DNA replication licensing factor MCM6

Saccharomyces cerevisiae

UniProt P53091

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 12 DNA 2	DNA replication licensing factor MCM2 × 2 （P29469） DNA replication licensing factor MCM3 × 2 （P24279） DNA replication licensing factor MCM4 × 2 （P30665） DNA replication licensing factor MCM5 × 2 （P29496） DNA replication licensing factor MCM7 × 2 （P38132） DNA (60-mer), strand 1 × 1 DNA (60-mer), strand 2 × 1 ADENOSINE-5'-DIPHOSPHATE × 8	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MCM6_YEAST
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain 6； PDBConstruct 1–1017； UniProt 1–1017 Author chain E； PDBConstruct 1–1017； UniProt 1–1017

DNA replication licensing factor MCM7

Saccharomyces cerevisiae

UniProt P38132

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 12 DNA 2	DNA replication licensing factor MCM2 × 2 （P29469） DNA replication licensing factor MCM3 × 2 （P24279） DNA replication licensing factor MCM4 × 2 （P30665） DNA replication licensing factor MCM5 × 2 （P29496） DNA replication licensing factor MCM6 × 2 （P53091） DNA (60-mer), strand 1 × 1 DNA (60-mer), strand 2 × 1 ADENOSINE-5'-DIPHOSPHATE × 8	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MCM7_YEAST
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain 7； PDBConstruct 1–845； UniProt 1–845 Author chain F； PDBConstruct 1–845； UniProt 1–845

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	5bk4
Deposition date deposition_date	2017-09-12
Structure title title	Cryo-EM structure of Mcm2-7 double hexamer on dsDNA
Keywords keywords	complex, DNA replication, HYDROLASE-DNA complex; HYDROLASE/DNA
Experimental Method method	ELECTRON MICROSCOPY

▼

3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

5bk4__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

5bk4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5bk4__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	70.94 Å
Rg (electron density)	71.18 Å
Total Rg	71.25 Å
Atom count	62482
Residues	7756
Excluded volume	1104900 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5bk4__assembly_1__model_1`	tetradecameric （14）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Description description	DNA replication licensing factor MCM2
Molecular weight formula_weight	98911.5 kDa
EC 编号 ec_number	3.6.4.12
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	2,A
Atom count atom_count	62482

MSDNRRRRREEDDSDSENELPPSSPQQHFRGGMNPVSSPIGSPDMINPEGDDNEVDDVPDIDEVEEQMNEVDLMDDNMYEDYAADHNRDRYDPDQVDDREQQELSLSERRRIDAQLNERDRLLRNVAYIDDEDEEQEGAAQLDEMGLPVQRRRRRRQYEDLENSDDDLLSDMDIDPLREELTLESLSNVKANSYSEWITQPNVSRTIARELKSFLLEYTDETGRSVYGARIRTLGEMNSESLEVNYRHLAESKAILALFLAKCPEEMLKIFDLVAMEATELHYPDYARIHSEIHVRISDFPTIYSLRELRESNLSSLVRVTGVVTRRTGVFPQLKYVKFNCLKCGSILGPFFQDSNEEIRISFCTNCKSKGPFRVNGEKTVYRNYQRVTLQEAPGTVPPGRLPRHREVILLADLVDVSKPGEEVEVTGIYKNNYDGNLNAKNGFPVFATIIEANSIKRREGNTANEGEEGLDVFSWTEEEEREFRKISRDRGIIDKIISSMAPSIYGHRDIKTAVACSLFGGVPKNVNGKHSIRGDINVLLLGDPGTAKSQILKYVEKTAHRAVFATGQGASAVGLTASVRKDPITKEWTLEGGALVLADKGVCLIDEFDKMNDQDRTSIHEAMEQQSISISKAGIVTTLQARCSIIAAANPNGGRYNSTLPLAQNVSLTEPILSRFDILCVVRDLVDEEADERLATFVVDSHVRSHPENDEDREGEELKNNGESAIEQGEDEINEQLNARQRRLQRQRKKEEEISPIPQELLMKYIHYARTKIYPKLHQMDMDKVSRVYADLRRESISTGSFPITVRHLESILRIAESFAKMRLSEFVSSYDLDRAIKVVVDSFVDAQKVSVRRQLRRSFAIYTLGH

Source Source

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;Baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Saccharomyces cerevisiae

Entity 2 Entity 2 polymer

Description description	DNA replication licensing factor MCM3
Molecular weight formula_weight	107653.5 kDa
EC 编号 ec_number	3.6.4.12
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	3,B

MEGSTGFDGDATTFFAPDAVFGDRVRRFQEFLDTFTSYRDSVRSIQVYNSNNAANYNDDQDDADERDLLGDDDGDDLEKEKKAASSTSLNILPHRIIISLDDLREFDRSFWSGILVEPAYFIPPAEKALTDLADSMDDVPHPNASAVSSRHPWKLSFKGSFGAHALSPRTLTAQHLNKLVSVEGIVTKTSLVRPKLIRSVHYAAKTGRFHYRDYTDATTTLTTRIPTPAIYPTEDTEGNKLTTEYGYSTFIDHQRITVQEMPEMAPAGQLPRSIDVILDDDLVDKTKPGDRVNVVGVFKSLGAGGMNQSNSNTLIGFKTLILGNTVYPLHARSTGVAARQMLTDFDIRNINKLSKKKDIFDILSQSLAPSIYGHDHIKKAILLMLMGGVEKNLENGSHLRGDINILMVGDPSTAKSQLLRFVLNTASLAIATTGRGSSGVGLTAAVTTDRETGERRLEAGAMVLADRGVVCIDEFDKMTDVDRVAIHEVMEQQTVTIAKAGIHTTLNARCSVIAAANPVFGQYDVNRDPHQNIALPDSLLSRFDLLFVVTDDINEIRDRSISEHVLRTHRYLPPGYLEGEPVRERLNLSLAVGEDADINPEEHSNSGAGVENEGEDDEDHVFEKFNPLLQAGAKLAKNKGNYNGTEIPKLVTIPFLRKYVQYAKERVIPQLTQEAINVIVKNYTDLRNDDNTKKSPITARTLETLIRLATAHAKVRLSKTVNKVDAKVAANLLRFALLGEDIGNDIDEEESEYEEALSKRSPQKSPKKRQRVRQPASNSGSPIKSTPRRSTASSVNATPSSARRILRFQDDEQNAGEDDNDIMSPLPADEEAELQRRLQLGLRVSPRRREHLHAPEEGSSGPLTEVGTPRLPNVSSAGQDDEQQQSVISFDNVEPGTISTGRLSLISGIIARLMQTEIFEEESYPVASLFERINEELPEEEKFSAQEYLAGLKIMSDRNNLMVADDKVWRV

Source Source

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;Baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Saccharomyces cerevisiae

Entity 3 Entity 3 polymer

Description description	DNA replication licensing factor MCM4
Molecular weight formula_weight	105138.4 kDa
EC 编号 ec_number	3.6.4.12
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	4,C

MSQQSSSPTKEDNNSSSPVVPNPDSVPPQLSSPALFYSSSSSQGDIYGRNNSQNLSQGEGNIRAAIGSSPLNFPSSSQRQNSDVFQSQGRQGRIRSSASASGRSRYHSDLRSDRALPTSSSSLGRNGQNRVHMRRNDIHTSDLSSPRRIVDFDTRSGVNTLDTSSSSAPPSEASEPLRIIWGTNVSIQECTTNFRNFLMSFKYKFRKILDEREEFINNTTDEELYYIKQLNEMRELGTSNLNLDARNLLAYKQTEDLYHQLLNYPQEVISIMDQTIKDCMVSLIVDNNLDYDLDEIETKFYKVRPYNVGSCKGMRELNPNDIDKLINLKGLVLRSTPVIPDMKVAFFKCNVCDHTMAVEIDRGVIQEPARCERIDCNEPNSMSLIHNRCSFADKQVIKLQETPDFVPDGQTPHSISLCVYDELVDSCRAGDRIEVTGTFRSIPIRANSRQRVLKSLYKTYVDVVHVKKVSDKRLDVDTSTIEQELMQNKVDHNEVEEVRQITDQDLAKIREVAAREDLYSLLARSIAPSIYELEDVKKGILLQLFGGTNKTFTKGGRYRGDINILLCGDPSTSKSQILQYVHKITPRGVYTSGKGSSAVGLTAYITRDVDTKQLVLESGALVLSDGGVCCIDEFDKMSDSTRSVLHEVMEQQTISIAKAGIITTLNARSSILASANPIGSRYNPNLPVTENIDLPPPLLSRFDLVYLVLDKVDEKNDRELAKHLTNLYLEDKPEHISQDDVLPVEFLTMYISYAKEHIHPIITEAAKTELVRAYVGMRKMGDDSRSDEKRITATTRQLESMIRLAEAHAKMKLKNVVELEDVQEAVRLIRSAIKDYATDPKTGKIDMNLVQTGKSVIQRKLQEDLSREIMNVLKDQASDSMSFNELIKQINEHSQDRVESSDIQEALSRLQQEDKVIVLGEGVRRSVRLNNRV

Source Source

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;Baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Saccharomyces cerevisiae

Entity 4 Entity 4 polymer

Description description	DNA replication licensing factor MCM5
Molecular weight formula_weight	86505.7 kDa
EC 编号 ec_number	3.6.4.12
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	5,D

MSFDRPEIYSAPVLQGESPNDDDNTEIIKSFKNFILEFRLDSQFIYRDQLRNNILVKNYSLTVNMEHLIGYNEDIYKKLSDEPSDIIPLFETAITQVAKRISILSRAQSANNNDKDPENTSMDTDSLLLNSLPTFQLILNSNANQIPLRDLDSEHVSKIVRLSGIIISTSVLSSRATYLSIMCRNCRHTTSITINNFNSITGNTVSLPRSCLSTIESESSMANESNIGDESTKKNCGPDPYIIIHESSKFIDQQFLKLQEIPELVPVGEMPRNLTMTCDRYLTNKVIPGTRVTIVGIYSIYNSKNGAGSGRSGGGNGGSGVAIRTPYIKILGIQSDVETSSIWNSVTMFTEEEEEEFLQLSRNPKLYEILTNSIAPSIFGNEDIKKAIVCLLMGGSKKILPDGMRLRGDINVLLLGDPGTAKSQLLKFVEKVSPIAVYTSGKGSSAAGLTASVQRDPMTREFYLEGGAMVLADGGVVCIDEFDKMRDEDRVAIHEAMEQQTISIAKAGITTVLNSRTSVLAAANPIYGRYDDLKSPGDNIDFQTTILSRFDMIFIVKDDHNEERDISIANHVINIHTGNANAMQNQQEENGSEISIEKMKRYITYCRLKCAPRLSPQAAEKLSSNFVTIRKQLLINELESTERSSIPITIRQLEAIIRITESLAKLELSPIAQERHVDEAIRLFQASTMDAASQDPIGGLNQASGTSLSEIRRFEQELKRRLPIGWSTSYQTLRREFVDTHRFSQLALDKALYALEKHETIQLRHQGQNIYRSGV

Source Source

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;Baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Saccharomyces cerevisiae

Entity 5 Entity 5 polymer

Description description	DNA replication licensing factor MCM6
Molecular weight formula_weight	113110.2 kDa
EC 编号 ec_number	3.6.4.12
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	6,E

MSSPFPADTPSSNRPSNSSPPPSSIGAGFGSSSGLDSQIGSRLHFPSSSQPHVSNSQTGPFVNDSTQFSSQRLQTDGSATNDMEGNEPARSFKSRALNHVKKVDDVTGEKVREAFEQFLEDFSVQSTDTGEVEKVYRAQIEFMKIYDLNTIYIDYQHLSMRENGALAMAISEQYYRFLPFLQKGLRRVVRKYAPELLNTSDSLKRSEGDEGQADEDEQQDDDMNGSSLPRDSGSSAAPGNGTSAMATRSITTSTSPEQTERVFQISFFNLPTVHRIRDIRSEKIGSLLSISGTVTRTSEVRPELYKASFTCDMCRAIVDNVEQSFKYTEPTFCPNPSCENRAFWTLNVTRSRFLDWQKVRIQENANEIPTGSMPRTLDVILRGDSVERAKPGDRCKFTGVEIVVPDVTQLGLPGVKPSSTLDTRGISKTTEGLNSGVTGLRSLGVRDLTYKISFLACHVISIGSNIGASSPDANSNNRETELQMAANLQANNVYQDNERDQEVFLNSLSSDEINELKEMVKDEHIYDKLVRSIAPAVFGHEAVKKGILLQMLGGVHKSTVEGIKLRGDINICVVGDPSTSKSQFLKYVVGFAPRSVYTSGKASSAAGLTAAVVRDEEGGDYTIEAGALMLADNGICCIDEFDKMDISDQVAIHEAMEQQTISIAKAGIHATLNARTSILAAANPVGGRYNRKLSLRGNLNMTAPIMSRFDLFFVILDDCNEKIDTELASHIVDLHMKRDEAIEPPFSAEQLRRYIKYARTFKPILTKEARSYLVEKYKELRKDDAQGFSRSSYRITVRQLESMIRLSEAIARANCVDEITPSFIAEAYDLLRQSIIRVDVDDVEMDEEFDNIESQSHAASGNNDDNDDGTGSGVITSEPPADIEEGQSEATARPGTSEKKKTTVTYDKYVSMMNMIVRKIAEVDREGAEELTAVDIVDWYLLQKENDLGSLAEYWEERRLAFKVIKRLVKDRILMEIHGTRHNLRDLENEENENNKTVYVIHPNCEVLDQLEPQDSS

Source Source

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;Baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Saccharomyces cerevisiae

Entity 6 Entity 6 polymer

Description description	DNA replication licensing factor MCM7
Molecular weight formula_weight	95049.9 kDa
EC 编号 ec_number	3.6.4.12
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	7,F

MSAALPSIQLPVDYNNLFNEITDFLVTFKQDTLSSDATRNENEDENLDAENIEQHLLEKGPKYMAMLQKVANRELNSVIIDLDDILQYQNEKFLQGTQADDLVSAIQQNANHFTELFCRAIDNNMPLPTKEIDYKDDVLDVILNQRRLRNERMLSDRTNEIRSENLMDTTMDPPSSMNDALREVVEDETELFPPNLTRRYFLYFKPLSQNCARRYRKKAISSKPLSVRQIKGDFLGQLITVRGIITRVSDVKPAVEVIAYTCDQCGYEVFQEVNSRTFTPLSECTSEECSQNQTKGQLFMSTRASKFSAFQECKIQELSQQVPVGHIPRSLNIHVNGTLVRSLSPGDIVDVTGIFLPAPYTGFKALKAGLLTETYLEAQFVRQHKKKFASFSLTSDVEERVMELITSGDVYNRLAKSIAPEIYGNLDVKKALLLLLVGGVDKRVGDGMKIRGDINVCLMGDPGVAKSQLLKAICKISPRGVYTTGKGSSGVGLTAAVMKDPVTDEMILEGGALVLADNGICCIDEFDKMDESDRTAIHEVMEQQTISISKAGINTTLNARTSILAAANPLYGRYNPRLSPLDNINLPAALLSRFDILFLMLDIPSRDDDEKLAEHVTYVHMHNKQPDLDFTPVEPSKMREYIAYAKTKRPVMSEAVNDYVVQAYIRLRQDSKREMDSKFSFGQATPRTLLGIIRLSQALAKLRLADMVDIDDVEEALRLVRVSKESLYQETNKSKEDESPTTKIFTIIKKMLQETGKNTLSYENIVKTVRLRGFTMLQLSNCIQEYSYLNVWHLINEGNTLKFVDDGTMDTDQEDSLVSTPKLAPQTTASANVSAQDSDIDLQDA

Source Source

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;Baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Saccharomyces cerevisiae

Entity 7 Entity 7 polymer

Description description	DNA (60-mer), strand 1
Molecular weight formula_weight	18491.8 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	S

CAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGT

Entity 8 Entity 8 polymer

Description description	DNA (60-mer), strand 2
Molecular weight formula_weight	18491.8 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	O

ACTGACTGACTGACTGACTGACTGACTGACTGACTGACTGACTGACTGACTGACTGACTG

Entity 9 Entity 9 non-polymer

Description description	ADENOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	427.2 kDa
Source method src_method	man
Copy count entity_count	8

▼

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	5bk4501
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	5bk4701
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	5bk4D01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	5bk4F01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

▶

Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	3.90 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	58772

Cryo-EM structure of Mcm2-7 double hexamer on dsDNA

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA replication licensing factor MCM2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

DNA replication licensing factor MCM3

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

DNA replication licensing factor MCM4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

DNA replication licensing factor MCM5

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

DNA replication licensing factor MCM6

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

DNA replication licensing factor MCM7

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

5bk4__assembly_1__model_1

5bk4__assembly_1__model_1 | I(q)

5bk4__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 polymer

Polymer Polymer

Source Source

Entity 6 Entity 6 polymer

Polymer Polymer

Source Source

Entity 7 Entity 7 polymer

Polymer Polymer