Structure of T4 Bacteriophage clamp loader mutant D110C bound to the T4 clamp, primer-template DNA, and ATP analog
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| T | SCOP2B Superfamily | DNA clamp | 8036422 | 3000780 | SCOP2B (2022-06-29) |
| T | SCOP2B Superfamily | DNA clamp | 8036423 | 3000780 | SCOP2B (2022-06-29) |
| S | SCOP2B Superfamily | DNA clamp | 8036422 | 3000780 | SCOP2B (2022-06-29) |
| S | SCOP2B Superfamily | DNA clamp | 8036423 | 3000780 | SCOP2B (2022-06-29) |
| R | SCOP2B Superfamily | DNA clamp | 8036422 | 3000780 | SCOP2B (2022-06-29) |
| R | SCOP2B Superfamily | DNA clamp | 8036423 | 3000780 | SCOP2B (2022-06-29) |
| H | SCOP2B Superfamily | DNA clamp | 8036422 | 3000780 | SCOP2B (2022-06-29) |
| H | SCOP2B Superfamily | DNA clamp | 8036423 | 3000780 | SCOP2B (2022-06-29) |
| G | SCOP2B Superfamily | DNA clamp | 8036423 | 3000780 | SCOP2B (2022-06-29) |
| G | SCOP2B Superfamily | DNA clamp | 8036422 | 3000780 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | DNA clamp | 8036423 | 3000780 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | DNA clamp | 8036422 | 3000780 | SCOP2B (2022-06-29) |
| Q | SCOP2B Superfamily | Post-AAA+ oligomerization domain-like | 8092970 | 3000691 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | Post-AAA+ oligomerization domain-like | 8092970 | 3000691 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| T | WD40 | e8uk9T1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| S | WD40 | e8uk9S1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| R | WD40 | e8uk9R1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| H | WD40 | e8uk9H1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| G | WD40 | e8uk9G1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| F | WD40 | e8uk9F1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| N | WD40 | e8uk9N1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| M | WD40 | e8uk9M1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| L | WD40 | e8uk9L1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| K | WD40 | e8uk9K1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| E | WD40 | e8uk9E1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| D | WD40 | e8uk9D1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| C | WD40 | e8uk9C1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| B | CPSase_L_D2 | e8uk9B01 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: CPSase_L_D2 | ECOD (v294.2) |
| Q | WD40 | e8uk9Q1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
| A | WD40 | e8uk9A1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: acid protease | F: WD40 | ECOD (v294.2) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF09116 | gp45 sliding clamp, C terminal (gp45-slide_C) | gp45 sliding clamp, C terminal | 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 tw ... | Domain | |
| PF02916 | DNA polymerase processivity factor (DNA_PPF) | DNA polymerase processivity factor | Domain | ||
| PF21328 | Sliding-clamp-loader large subunit, AAA+ ATPase lid domain (Gp44_lid) | Sliding-clamp-loader large subunit, AAA+ ATPase lid domain | 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 c ... | Domain | |
| PF21429 | Sliding-clamp-loader large subunit, C-terminal domain (Gp44_C) | Sliding-clamp-loader large subunit, C-terminal domain | 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: ... | Domain | |
| PF00004 | ATPase 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 | |
| PF16790 | Bacteriophage clamp loader A subunit (Phage_clamp_A) | Bacteriophage clamp loader A subunit | This 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 |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR046938 | DNA clamp superfamily | Homologous Superfamily | |
| IPR046389 | Sliding clamp | Family | |
| IPR004190 | DNA polymerase processivity factor | Domain | |
| IPR015200 | Sliding clamp, C-terminal | Domain | |
| IPR050238 | DNA Replication and Repair Clamp Loader Complex | Family | |
| IPR046388 | Sliding-clamp-loader large subunit | Family | |
| IPR048815 | Sliding-clamp-loader large subunit, AAA+ ATPase lid domain | Domain | |
| IPR048817 | Sliding-clamp-loader large subunit, C-terminal domain | Domain | |
| IPR003593 | AAA+ ATPase domain | Domain | |
| IPR003959 | ATPase, AAA-type, core | Domain | |
| IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily | |
| IPR031868 | Sliding-clamp-loader small subunit gp62 | Family |














