4M4W

Mechanistic implications for the bacterial primosome assembly of the structure of a helicase-helicase loader complex


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ADnaB_1ste4m4wA4 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
ADnaB_Ce4m4wA2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DnaB_CECOD (1.6)
BDnaB_1ste4m4wB4 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
BDnaB_Ce4m4wB2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DnaB_CECOD (1.6)
CDnaB_1ste4m4wC4 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
CDnaB_Ce4m4wC2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DnaB_CECOD (1.6)
DDnaB_1ste4m4wD4 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
DDnaB_Ce4m4wD2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DnaB_CECOD (1.6)
EDnaB_1ste4m4wE4 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
EDnaB_Ce4m4wE2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DnaB_CECOD (1.6)
FDnaB_1ste4m4wF4 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
FDnaB_Ce4m4wF2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DnaB_CECOD (1.6)
GDnaB_1ste4m4wG1 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
HDnaB_1ste4m4wH1 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
IDnaB_1ste4m4wI1 A: alpha arraysX: DnaB helicase N-terminal domain-related (From Topology)H: DnaB helicase N-terminal domain-related (From Topology)T: DnaB helicase N-terminal domain-relatedF: DnaB_1stECOD (1.6)
JBac_DnaA_Ne4m4wJ2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Bac_DnaA_NECOD (1.6)
JDnaI_Ne4m4wJ3 A: few secondary structure elementsX: N-terminal domain of helicase-loading protein DnaI (From Topology)H: N-terminal domain of helicase-loading protein DnaI (From Topology)T: N-terminal domain of helicase-loading protein DnaIF: DnaI_NECOD (1.6)
KBac_DnaA_Ne4m4wK4 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Bac_DnaA_NECOD (1.6)
KDnaI_Ne4m4wK5 A: few secondary structure elementsX: N-terminal domain of helicase-loading protein DnaI (From Topology)H: N-terminal domain of helicase-loading protein DnaI (From Topology)T: N-terminal domain of helicase-loading protein DnaIF: DnaI_NECOD (1.6)
LBac_DnaA_Ne4m4wL2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Bac_DnaA_NECOD (1.6)
LDnaI_Ne4m4wL3 A: few secondary structure elementsX: N-terminal domain of helicase-loading protein DnaI (From Topology)H: N-terminal domain of helicase-loading protein DnaI (From Topology)T: N-terminal domain of helicase-loading protein DnaIF: DnaI_NECOD (1.6)
MBac_DnaA_Ne4m4wM5 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Bac_DnaA_NECOD (1.6)
MDnaI_Ne4m4wM6 A: few secondary structure elementsX: N-terminal domain of helicase-loading protein DnaI (From Topology)H: N-terminal domain of helicase-loading protein DnaI (From Topology)T: N-terminal domain of helicase-loading protein DnaIF: DnaI_NECOD (1.6)
NBac_DnaA_Ne4m4wN1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Bac_DnaA_NECOD (1.6)
NDnaI_Ne4m4wN2 A: few secondary structure elementsX: N-terminal domain of helicase-loading protein DnaI (From Topology)H: N-terminal domain of helicase-loading protein DnaI (From Topology)T: N-terminal domain of helicase-loading protein DnaIF: DnaI_NECOD (1.6)
OBac_DnaA_Ne4m4wO1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Bac_DnaA_NECOD (1.6)
ODnaI_Ne4m4wO3 A: few secondary structure elementsX: N-terminal domain of helicase-loading protein DnaI (From Topology)H: N-terminal domain of helicase-loading protein DnaI (From Topology)T: N-terminal domain of helicase-loading protein DnaIF: DnaI_NECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D, E
PF03796DnaB-like helicase C terminal domain (DnaB_C)DnaB-like helicase C terminal domainThe hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the q ...The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the quaternary structure of the protein involving dimerisation of the N-terminal domain has been observed and may occur during the enzymatic cycle. This C-terminal domain contains an ATP-binding site and is therefore probably the site of ATP hydrolysis.
Domain
A, B, C, D, E
PF00772DnaB-like helicase N terminal domain (DnaB)DnaB-like helicase N terminal domainThe hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the q ...The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the quaternary structure of the protein involving dimerisation of the N-terminal domain has been observed and may occur during the enzymatic cycle. This N-terminal domain is required both for interaction with other proteins in the primosome and for DnaB helicase activity [1].
Domain
J, K, L, M, N
PF00308Bacterial dnaA protein (Bac_DnaA)Bacterial dnaA protein- Domain
J, K, L, M, N
PF07319Primosomal protein DnaI N-terminus (DnaI_N)Primosomal protein DnaI N-terminus- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D, E
Replicative helicase
G, H, I
DNA primase -
J, K, L, M, N
Primosomal protein DnaI

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B, C, D, E
IPR016136DNA helicase DnaB, N-terminal/DNA primase DnaG, C-terminalHomologous Superfamily
A, B, C, D, E
IPR007693DNA helicase, DnaB-like, N-terminalDomain
A, B, C, D, E
IPR007694DNA helicase, DnaB-like, C-terminalDomain
A, B, C, D, E
IPR007692DNA helicase, DnaB typeFamily
A, B, C, D, E
IPR036185DNA helicase, DnaB-like, N-terminal domain superfamilyHomologous Superfamily
A, B, C, D, E
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
G, H, I
IPR037068DNA primase, catalytic core, N-terminal domain superfamilyHomologous Superfamily
G, H, I
IPR016136DNA helicase DnaB, N-terminal/DNA primase DnaG, C-terminalHomologous Superfamily
G, H, I
IPR034151Bacterial DnaG primase, TOPRIM domainDomain
G, H, I
IPR030846DNA primase DnaG, bacteriaFamily
G, H, I
IPR006295DNA primase, DnaGDomain
G, H, I
IPR006171TOPRIM domainDomain
G, H, I
IPR002694Zinc finger, CHC2-typeDomain
G, H, I
IPR036977DNA Primase, CHC2-type zinc fingerHomologous Superfamily
G, H, I
IPR013264DNA primase DNAG, catalytic core, N-terminalDomain
G, H, I
IPR036185DNA helicase, DnaB-like, N-terminal domain superfamilyHomologous Superfamily
G, H, I
IPR019475DNA primase, DnaB-helicase binding domainDomain
J, K, L, M, N
IPR013317Chromosomal replication initiator protein DnaADomain
J, K, L, M, N
IPR003593AAA+ ATPase domainDomain
J, K, L, M, N
IPR009928Primosomal DnaI, N-terminalDomain
J, K, L, M, N
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily