8UNH

Cryo-EM structure of T4 Bacteriophage Clamp Loader with Sliding Clamp


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
E [auth A]SCOP2B SuperfamilyPost-AAA+ oligomerization domain-like 8092970 3000691 SCOP2B (2022-06-29)
F [auth G]SCOP2B SuperfamilyDNA clamp 8036422 3000780 SCOP2B (2022-06-29)
F [auth G]SCOP2B SuperfamilyDNA clamp 8036423 3000780 SCOP2B (2022-06-29)
G [auth H]SCOP2B SuperfamilyDNA clamp 8036422 3000780 SCOP2B (2022-06-29)
G [auth H]SCOP2B SuperfamilyDNA clamp 8036423 3000780 SCOP2B (2022-06-29)
H [auth F]SCOP2B SuperfamilyDNA clamp 8036423 3000780 SCOP2B (2022-06-29)
H [auth F]SCOP2B SuperfamilyDNA clamp 8036422 3000780 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth B],
B [auth E],
C,
D
PF21328Sliding-clamp-loader large subunit, AAA+ ATPase lid domain (Gp44_lid)Sliding-clamp-loader large subunit, AAA+ ATPase lid domainSliding-clamp-loader large subunit (also known as Gp44) from Bacteriophage T4 forms the sliding-clamp-loader together with the small subunit. These are members of the AAA+ superfamily of ATPases which form pentameric complexes that load sliding DNA c ...Sliding-clamp-loader large subunit (also known as Gp44) from Bacteriophage T4 forms the sliding-clamp-loader together with the small subunit. These are members of the AAA+ superfamily of ATPases which form pentameric complexes that load sliding DNA clamps onto the DNA, key for processive chromosomal replication [1,2]. This entry represents the AAA+ ATPase lid domain.
Domain
A [auth B],
B [auth E],
C,
D
PF21429Sliding-clamp-loader large subunit, C-terminal domain (Gp44_C)Sliding-clamp-loader large subunit, C-terminal domainThis domain is found at the C-terminal end of Sliding-clamp-loader large subunit from Bacteriophage T4 (Gp44) and similar proteins predominantly found in tailed bacteriophages. Gp44 functions as an ATPase enzyme. It also contains an AAA module (Pfam: ...This domain is found at the C-terminal end of Sliding-clamp-loader large subunit from Bacteriophage T4 (Gp44) and similar proteins predominantly found in tailed bacteriophages. Gp44 functions as an ATPase enzyme. It also contains an AAA module (Pfam:PF00004) [1,2].
Domain
A [auth B],
B [auth E],
C,
D
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
E [auth A]PF16790Bacteriophage clamp loader A subunit (Phage_clamp_A)Bacteriophage clamp loader A subunitThis is the A subunit of bacteriophage DNA clamp loader required for loading of sliding clamps onto chromosomal DNA. These clamps are involved in processivity of DNA replication [1].Domain
F [auth G],
G [auth H],
H [auth F]
PF09116gp45 sliding clamp, C terminal (gp45-slide_C)gp45 sliding clamp, C terminalMembers of this family are essential for the interaction of the gp45 sliding clamp with the corresponding polymerase. They adopt a DNA clamp fold, consisting of two alpha helices and two beta sheets - the fold is duplicated and has internal pseudo tw ...Members of this family are essential for the interaction of the gp45 sliding clamp with the corresponding polymerase. They adopt a DNA clamp fold, consisting of two alpha helices and two beta sheets - the fold is duplicated and has internal pseudo two-fold symmetry [1].
Domain
F [auth G],
G [auth H],
H [auth F]
PF02916DNA polymerase processivity factor (DNA_PPF)DNA polymerase processivity factor- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth B],
B [auth E],
C,
D
Sliding-clamp-loader large subunit
E [auth A]Sliding-clamp-loader small subunit -
F [auth G],
G [auth H],
H [auth F]
Sliding clamp -