6QS4

Two-Step Activation Mechanism of the ClpB Disaggregase for Sequential Substrate Threading by the Main ATPase Motor.


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BPF10431e6qs4B1 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF10431ECOD (1.6)
BPF17871e6qs4B2 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF17871ECOD (1.6)
BPF00004e6qs4B4 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF00004ECOD (1.6)
BPF07724e6qs4B3 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF07724ECOD (1.6)
EPF10431e6qs4E3 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF10431ECOD (1.6)
EPF17871e6qs4E1 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF17871ECOD (1.6)
EPF00004e6qs4E2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF00004ECOD (1.6)
EPF07724e6qs4E4 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF07724ECOD (1.6)
APF10431e6qs4A1 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF10431ECOD (1.6)
APF17871e6qs4A4 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF17871ECOD (1.6)
APF00004e6qs4A2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF00004ECOD (1.6)
APF07724e6qs4A3 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF07724ECOD (1.6)
CPF10431e6qs4C4 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF10431ECOD (1.6)
CPF17871e6qs4C2 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF17871ECOD (1.6)
CPF00004e6qs4C3 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF00004ECOD (1.6)
CPF07724e6qs4C1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF07724ECOD (1.6)
DPF10431e6qs4D2 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF10431ECOD (1.6)
DPF17871e6qs4D1 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF17871ECOD (1.6)
DPF00004e6qs4D4 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF00004ECOD (1.6)
DPF07724e6qs4D3 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF07724ECOD (1.6)
FPF10431e6qs4F1 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF10431ECOD (1.6)
FPF17871e6qs4F3 A: alpha arraysX: Histone-likeH: Histone-relatedT: AAA+ ATPase lid domainF: PF17871ECOD (1.6)
FPF00004e6qs4F4 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF00004ECOD (1.6)
FPF07724e6qs4F2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: PF07724ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D, E
PF10431C-terminal, D2-small domain, of ClpB protein (ClpB_D2-small)C-terminal, D2-small domain, of ClpB proteinThis is the C-terminal domain of ClpB protein, referred to as the D2-small domain, and is a mixed alpha-beta structure. Compared with the D1-small domain (included in AAA, Pfam:PF00004) it lacks the long coiled-coil insertion, and instead of helix C4 ...This is the C-terminal domain of ClpB protein, referred to as the D2-small domain, and is a mixed alpha-beta structure. Compared with the D1-small domain (included in AAA, Pfam:PF00004) it lacks the long coiled-coil insertion, and instead of helix C4 contains a beta-strand (e3) that is part of a three stranded beta-pleated sheet. In Thermophilus the whole protein forms a hexamer with the D1-small and D2-small domains located on the outside of the hexamer, with the long coiled-coil being exposed on the surface. The D2-small domain is essential for oligomerisation, forming a tight interface with the D2-large domain of a neighbouring subunit and thereby providing enough binding energy to stabilise the functional assembly [1]. The domain is associated with two Clp_N, Pfam:PF02861, at the N-terminus as well as AAA, Pfam:PF00004 and AAA_2, Pfam:PF07724.
Domain
A, B, C, D, E
PF17871AAA lid domain (AAA_lid_9)AAA lid domainThis entry represents the alpha helical AAA+ lid domain that is found to the C-terminus of AAA domains.Domain
A, B, C, D, E
PF00004ATPase family associated with various cellular activities (AAA) (AAA)ATPase family associated with various cellular activities (AAA)AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2].Domain
A, B, C, D, E
PF07724AAA domain (Cdc48 subfamily) (AAA_2)AAA domain (Cdc48 subfamily)This Pfam entry includes some of the AAA proteins not detected by the Pfam:PF00004 model.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D, E
Chaperone protein ClpB
G [auth S]casein---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B, C, D, E
IPR001270ClpA/B familyFamily
A, B, C, D, E
IPR018368ClpA/B, conserved site 1Conserved Site
A, B, C, D, E
IPR041546ClpA/ClpB, AAA lid domainDomain
A, B, C, D, E
IPR004176Clp, repeat (R) domainDomain
A, B, C, D, E
IPR028299ClpA/B, conserved site 2Conserved Site
A, B, C, D, E
IPR017730Chaperonin ClpBFamily
A, B, C, D, E
IPR003593AAA+ ATPase domainDomain
A, B, C, D, E
IPR003959ATPase, AAA-type, coreDomain
A, B, C, D, E
IPR019489Clp ATPase, C-terminalDomain
A, B, C, D, E
IPR036628Clp, N-terminal domain superfamilyHomologous Superfamily
A, B, C, D, E
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily