Annotations: 3GPM

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	DNA clamp	8036432	3000780	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	DNA clamp	8036430	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	PF00705	e3gpmA1	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: PF00705	ECOD (1.6)
A	PF02747	e3gpmA2	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: PF02747	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02747	Proliferating cell nuclear antigen, C-terminal domain (PCNA_C)	Proliferating cell nuclear antigen, C-terminal domain	N-terminal and C-terminal domains of PCNA are topologically identical. Three PCNA molecules are tightly associated to form a closed ring encircling duplex DNA.	Domain
A	PF00705	Proliferating cell nuclear antigen, N-terminal domain (PCNA_N)	Proliferating cell nuclear antigen, N-terminal domain	N-terminal and C-terminal domains of PCNA are topologically identical. Three PCNA molecules are tightly associated to form a closed ring encircling duplex DNA.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Proliferating cell nuclear antigen	DNA binding binding organic cyclic compound binding nucleic acid binding enzyme regulator activity DNA polymerase processivity factor activity enzyme activator activity molecular function activator activity molecular function regulator activity identical protein binding protein binding	cellular process cell cycle mitotic cell cycle DNA-templated DNA replication lagging strand elongation primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA strand elongation organic substance metabolic process DNA replication metabolic process cellular process cell cycle mitotic cell cycle DNA-templated DNA replication lagging strand elongation primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA strand elongation organic substance metabolic process DNA replication metabolic process DNA strand elongation involved in DNA replication macromolecule metabolic process leading strand elongation cellular response to stimulus mismatch repair sexual reproduction response to stimulus reproductive process meiotic cell cycle process meiotic mismatch repair cellular response to stress response to stress cell cycle process DNA repair meiotic cell cycle meiosis I cell cycle process DNA damage response postreplication repair cellular biosynthetic process DNA synthesis involved in DNA repair nucleic acid biosynthetic process organic substance biosynthetic process translesion synthesis cellular metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process error-free translesion synthesis biosynthetic process organic cyclic compound biosynthetic process DNA biosynthetic process positive regulation of DNA replication positive regulation of biological process regulation of primary metabolic process positive regulation of metabolic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of nucleobase-containing compound metabolic process regulation of biological process biological regulation regulation of macromolecule metabolic process positive regulation of DNA metabolic process regulation of metabolic process regulation of DNA metabolic process regulation of DNA replication regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process protein-DNA complex organization cellular component organization chromatin organization negative regulation of cellular process chromatin remodeling cellular component organization or biogenesis negative regulation of macromolecule metabolic process regulation of biosynthetic process heterochromatin formation protein-containing complex organization epigenetic regulation of gene expression negative regulation of metabolic process regulation of cellular metabolic process gene expression negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression constitutive heterochromatin formation negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process silent mating-type cassette heterochromatin formation negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process mitotic sister chromatid cohesion establishment of mitotic sister chromatid cohesion chromosome organization sister chromatid cohesion organelle organization mitotic cell cycle process establishment of sister chromatid cohesion regulation of cellular response to stress positive regulation of response to stimulus positive regulation of DNA repair regulation of response to stress positive regulation of cellular process regulation of DNA repair regulation of response to stimulus maintenance of DNA repeat elements maintenance of DNA trinucleotide repeats subtelomeric heterochromatin formation telomere organization nucleotide-excision repair	membrane-bounded organelle protein-containing complex intracellular anatomical structure PCNA complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity enzyme activator complex DNA polymerase processivity factor complex intracellular organelle organelle intracellular non-membrane-bounded organelle replication fork membrane-bounded organelle protein-containing complex intracellular anatomical structure PCNA complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity enzyme activator complex DNA polymerase processivity factor complex intracellular organelle organelle intracellular non-membrane-bounded organelle replication fork chromosome non-membrane-bounded organelle chromosome, telomeric region chromosomal region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR046938	DNA clamp superfamily	Homologous Superfamily
A	IPR022648	Proliferating cell nuclear antigen, PCNA, N-terminal	Domain
A	IPR000730	Proliferating cell nuclear antigen, PCNA	Family
A	IPR022649	Proliferating cell nuclear antigen, PCNA, C-terminal	Domain
A	IPR022659	Proliferating cell nuclear antigen, PCNA, conserved site	Conserved Site

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.