2HPI

Eubacterial and Eukaryotic Replicative DNA Polymerases are not Homologous: X-ray Structure of DNA Polymerase III

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	tRNA_anti-codon_1	e2hpiA5	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: tRNA_anti-codon_1	ECOD (1.6)
A	HHH_6	e2hpiA4	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: HHH_6	ECOD (1.6)
A	DNA_pol3_alpha_C	e2hpiA3	A: alpha arrays	X: DNA polymerase III finger domain (From Topology)	H: DNA polymerase III finger domain (From Topology)	T: DNA polymerase III finger domain	F: DNA_pol3_alpha_C	ECOD (1.6)
A	dnaE	e2hpiA6	A: a+b two layers	X: DNA polymerase III C-terminal domain (From Topology)	H: DNA polymerase III C-terminal domain (From Topology)	T: DNA polymerase III C-terminal domain	F: dnaE	ECOD (1.6)
A	DNA_pol3_alpha_N	e2hpiA2	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: DNA_pol3_alpha_N	ECOD (1.6)
A	PHP	e2hpiA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PHP	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.140	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Metal-dependent hydrolases	CATH (4.3.0)
A	1.10.10.1600	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Bacterial DNA polymerase III alpha subunit, thumb domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02811	PHP domain (PHP)	PHP domain	-	Family
A	PF07733	Bacterial DNA polymerase III alpha NTPase domain (DNA_pol3_alpha)	Bacterial DNA polymerase III alpha NTPase domain	-	Domain
A	PF14579	Helix-hairpin-helix motif (HHH_6)	Helix-hairpin-helix motif	The HHH domain is a short DNA-binding domain [1].	Domain
A	PF17657	Bacterial DNA polymerase III alpha subunit finger domain (DNA_pol3_finger)	Bacterial DNA polymerase III alpha subunit finger domain	-	Domain
A	PF01336	OB-fold nucleic acid binding domain (tRNA_anti-codon)	OB-fold nucleic acid binding domain	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an a ...	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an amino acid to the appropriate tRNA molecule EC:6.1.1.-. This family also includes part of RecG helicase involved in DNA repair. Replication factor A is a hetero-trimeric complex, that contains a subunit in this family [2,3]. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA polymerase III alpha 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 binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds 3'-5' exonuclease 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 binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds 3'-5' exonuclease activity hydrolase activity exonuclease 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	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR040982	DNA polymerase III alpha subunit finger domain	Domain
A	IPR004013	PHP domain	Domain
A	IPR016195	Polymerase/histidinol phosphatase-like	Homologous Superfamily
A	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
A	IPR041931	Bacterial DNA polymerase III alpha subunit, thumb domain	Homologous Superfamily
A	IPR003141	Polymerase/histidinol phosphatase, N-terminal	Domain
A	IPR011708	Bacterial DNA polymerase III, alpha subunit, NTPase domain	Domain
A	IPR029460	DNA polymerase, helix-hairpin-helix motif	Domain
A	IPR004805	Error-prone DNA polymerase/DNA polymerase III subunit alpha DnaE/PolC	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.