1CZD

CRYSTAL STRUCTURE OF THE PROCESSIVITY CLAMP GP45 FROM BACTERIOPHAGE T4

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1czda1	Alpha and beta proteins (a+b)	DNA clamp	DNA clamp	DNA polymerase processivity factor	gp45 sliding clamp	(Tequatrovirus T4 ) [TaxId: 10665 ],	SCOPe (2.08)
B	d1czdb1	Alpha and beta proteins (a+b)	DNA clamp	DNA clamp	DNA polymerase processivity factor	gp45 sliding clamp	(Tequatrovirus T4 ) [TaxId: 10665 ],	SCOPe (2.08)
C	d1czdc1	Alpha and beta proteins (a+b)	DNA clamp	DNA clamp	DNA polymerase processivity factor	gp45 sliding clamp	(Tequatrovirus T4 ) [TaxId: 10665 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	DNA polymerase processivity factor	8024043	4002066	SCOP2 (2022-06-29)
A	SCOP2 Family	DNA polymerase processivity factor	8024044	4002066	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DNA clamp	8036422	3000780	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DNA clamp	8036423	3000780	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	DNA clamp	8036422	3000780	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	DNA clamp	8036423	3000780	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	DNA clamp	8036423	3000780	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	DNA clamp	8036422	3000780	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)
A	DNA_PPF_1	e1czdA1	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: DNA_PPF_1	ECOD (1.6)
A	gp45-slide_C	e1czdA2	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: gp45-slide_C	ECOD (1.6)
B	DNA_PPF_1	e1czdB1	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: DNA_PPF_1	ECOD (1.6)
B	gp45-slide_C	e1czdB2	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: gp45-slide_C	ECOD (1.6)
C	DNA_PPF_1	e1czdC1	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: DNA_PPF_1	ECOD (1.6)
C	gp45-slide_C	e1czdC2	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: gp45-slide_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.70.10.10	Alpha Beta	Box	Proliferating Cell Nuclear Antigen		CATH (4.3.0)
B	3.70.10.10	Alpha Beta	Box	Proliferating Cell Nuclear Antigen		CATH (4.3.0)
C	3.70.10.10	Alpha Beta	Box	Proliferating Cell Nuclear Antigen		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	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 ...	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
A, B, C	PF02916	DNA polymerase processivity factor (DNA_PPF)	DNA polymerase processivity factor		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	DNA POLYMERASE ACCESSORY PROTEIN G45	enzyme regulator activity DNA polymerase processivity factor activity enzyme activator activity molecular function activator activity molecular function regulator activity	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process viral gene expression viral process viral transcription viral DNA genome replication viral life cycle nucleobase-containing compound biosynthetic process nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process viral gene expression viral process viral transcription viral DNA genome replication viral life cycle nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid biosynthetic process biosynthetic process viral genome replication bidirectional double-stranded viral DNA replication DNA biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR046938	DNA clamp superfamily	Homologous Superfamily
A, B, C	IPR046389	Sliding clamp	Family
A, B, C	IPR004190	DNA polymerase processivity factor	Domain
A, B, C	IPR015200	Sliding clamp, C-terminal	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.