1RXZ

C-terminal region of A. fulgidus FEN-1 complexed with A. fulgidus PCNA

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 Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1rxza1	Alpha and beta proteins (a+b)	DNA clamp	DNA clamp	DNA polymerase processivity factor	Proliferating cell nuclear antigen (PCNA)	(Archaeoglobus fulgidus ) [TaxId: 2234 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	DNA clamp	8040967	3000780	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	DNA clamp	8040969	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	PCNA_C	e1rxzA2	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: PCNA_C	ECOD (1.6)
A	PCNA_N_1	e1rxzA1	A: a+b two layers	X: DNA clamp (From Topology)	H: DNA clamp (From Topology)	T: DNA clamp	F: PCNA_N_1	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	DNA polymerase sliding clamp	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	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process regulation of biological process biological regulation regulation of macromolecule metabolic process regulation of primary metabolic process regulation of nucleobase-containing compound metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process regulation of biological process biological regulation regulation of macromolecule metabolic process regulation of primary metabolic process regulation of nucleobase-containing compound metabolic process regulation of metabolic process regulation of DNA replication regulation of DNA metabolic process	-
B	Flap structure-specific endonuclease	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding organic cyclic compound binding nucleic acid binding 5'-flap endonuclease activity endonuclease activity catalytic activity, acting on a nucleic acid endodeoxyribonuclease activity, producing 5'-phosphomonoesters hydrolase activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding DNA binding organic cyclic compound binding nucleic acid binding 5'-flap endonuclease activity endonuclease activity catalytic activity, acting on a nucleic acid endodeoxyribonuclease activity, producing 5'-phosphomonoesters hydrolase activity DNA nuclease activity DNA endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA flap endonuclease activity endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters catalytic activity 5'-3' exonuclease activity exonuclease activity	cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process cellular response to stimulus response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair DNA replication, removal of RNA primer catabolic process RNA metabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleobase-containing compound catabolic process DNA replication nucleic acid catabolic process organic substance catabolic process RNA catabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR046938	DNA clamp superfamily	Homologous Superfamily
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
A	IPR022648	Proliferating cell nuclear antigen, PCNA, N-terminal	Domain
B	IPR002421	5'-3' exonuclease	Domain
B	IPR006086	XPG-I domain	Domain
B	IPR023426	Flap endonuclease 1	Family
B	IPR029060	PIN-like domain superfamily	Homologous Superfamily
B	IPR036279	5'-3' exonuclease, C-terminal domain superfamily	Homologous Superfamily
B	IPR008918	Helix-hairpin-helix motif, class 2	Conserved Site
B	IPR019974	XPG conserved site	Conserved Site
B	IPR006085	XPG, N-terminal	Domain
B	IPR019973	Flap endonuclease, archaea	Family
B	IPR006084	XPG/Rad2 endonuclease	Family

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.