8OO6

Pol I bound to extended and displaced DNA section - closed conformation

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8037488	3001272	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ribonuclease H-like	8044537	3000143	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01612	3'-5' exonuclease (DNA_pol_A_exo1)	3'-5' exonuclease	This domain is responsible for the 3'-5' exonuclease proofreading activity of E. coli DNA polymerase I (polI) and other enzymes, it catalyses the hydrolysis of unpaired or mismatched nucleotides. This domain consists of the amino-terminal half of the ...	This domain is responsible for the 3'-5' exonuclease proofreading activity of E. coli DNA polymerase I (polI) and other enzymes, it catalyses the hydrolysis of unpaired or mismatched nucleotides. This domain consists of the amino-terminal half of the Klenow fragment in E. coli polI it is also found in the Werner syndrome helicase (WRN), focus forming activity 1 protein (FFA-1) and ribonuclease D (RNase D). Werner syndrome is a human genetic disorder causing premature aging; the WRN protein has helicase activity in the 3'-5' direction [4,5]. The FFA-1 protein is required for formation of a replication foci and also has helicase activity; it is a homologue of the WRN protein [3]. RNase D is a 3'-5' exonuclease involved in tRNA processing. Also found in this family is the autoantigen PM/Scl thought to be involved in polymyositis-scleroderma overlap syndrome.	Domain
A	PF00476	DNA polymerase family A (DNA_pol_A)	DNA polymerase family A	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA polymerase I	nuclease activity hydrolase activity, acting on ester bonds 5'-3' exonuclease activity hydrolase activity exonuclease activity catalytic 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 transferase activity, transferring phosphorus-containing groups DNA binding nuclease activity hydrolase activity, acting on ester bonds 5'-3' exonuclease activity hydrolase activity exonuclease activity catalytic 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 transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding 3'-5' exonuclease 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 DNA-templated DNA replication cellular response to stimulus response to stimulus cellular response to stress DNA damage response response to stress nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process DNA-templated DNA replication cellular response to stimulus response to stimulus cellular response to stress DNA damage response response to stress DNA repair base-excision repair double-strand break repair	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol
B [auth T]	Template DNA	-	-	-
C [auth P]	Extending Primer	-	-	-
D	Displaced primer	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR002421	5'-3' exonuclease	Domain
A	IPR008918	Helix-hairpin-helix motif, class 2	Conserved Site
A	IPR002298	DNA polymerase A	Family
A	IPR019760	DNA-directed DNA polymerase, family A, conserved site	Conserved Site
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
A	IPR002562	3'-5' exonuclease domain	Domain
A	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A	IPR020045	DNA polymerase I-like, H3TH domain	Domain
A	IPR001098	DNA-directed DNA polymerase, family A, palm domain	Domain
A	IPR029060	PIN-like domain superfamily	Homologous Superfamily
A	IPR036279	5'-3' exonuclease, C-terminal domain superfamily	Homologous Superfamily
A	IPR020046	5'-3' exonuclease, alpha-helical arch, N-terminal	Domain
A	IPR018320	DNA polymerase 1	Family

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.