2KXE | pdb_00002kxe

N-terminal domain of the DP1 subunit of an archaeal D-family DNA polymerase

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PRK04036	e2kxeA1	A: alpha arrays	X: Histone-like	H: Histone-related	T: AAA+ ATPase lid domain	F: PRK04036	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.8.800	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF22317	DNA polymerase II small subunit, N-terminal domain (PolB_N)	DNA polymerase II small subunit, N-terminal domain	This domain is found at the N-terminal end of DNA polymerase II small subunit from Pyrococcus horikoshii (PolB) and similar archaeal sequences. PolB possesses two activities: a DNA synthesis (polymerase) and an exonucleolytic activity that degrades s ...	This domain is found at the N-terminal end of DNA polymerase II small subunit from Pyrococcus horikoshii (PolB) and similar archaeal sequences. PolB possesses two activities: a DNA synthesis (polymerase) and an exonucleolytic activity that degrades single -stranded DNA in the 3' to 5' direction. This domain folds into a four alpha-helix bundle that includes a short parallel beta -sheet [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA polymerase II small subunit	catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding DNA exonuclease activity 3'-5' exonuclease activity hydrolase activity catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding DNA exonuclease activity 3'-5' exonuclease activity hydrolase activity DNA exonuclease activity, producing 5'-phosphomonoesters DNA nuclease activity single-stranded DNA exodeoxyribonuclease activity nuclease activity hydrolase activity, acting on ester bonds 3'-5'-DNA exonuclease activity exonuclease activity single-stranded DNA 3'-5' DNA exonuclease activity	catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process DNA-templated DNA replication DNA strand elongation catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process DNA-templated DNA replication DNA strand elongation DNA replication DNA strand elongation involved in DNA replication	transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex transferase complex DNA polymerase complex intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR054750	DNA polymerase II small subunit, N-terminal domain	Domain
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR011149	DNA polymerase II small subunit, archaeal	Family
A	IPR024826	DNA polymerase delta/II small subunit family	Family
A	IPR004843	Calcineurin-like, phosphoesterase domain	Domain
A	IPR029052	Metallo-dependent phosphatase-like	Homologous Superfamily

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.