Annotations: 4QFQ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Intein_splicing	e4qfqA1	A: beta complex topology	X: Hedgehog/intein (From Homology)	H: Hedgehog/intein	T: Hint	F: Intein_splicing	ECOD (1.6)
B	Intein_splicing	e4qfqB1	A: beta complex topology	X: Hedgehog/intein (From Homology)	H: Hedgehog/intein	T: Hint	F: Intein_splicing	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.170.16.10	Mainly Beta	Beta Complex	Endonuclease - Pi-scei	Chain A, domain 1	CATH (4.3.0)

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 nuclease activity hydrolase activity, acting on ester bonds 3'-5' exonuclease activity hydrolase activity exonuclease activity	nucleobase-containing compound metabolic process DNA replication metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process intein-mediated protein splicing cellular biosynthetic process cellular metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process nucleobase-containing compound metabolic process DNA replication metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process intein-mediated protein splicing cellular biosynthetic process cellular metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing cellular process protein metabolic process protein splicing	-
B	Nucleic acid binding, OB-fold, tRNA/helicase-type	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 helicase activity ATP-dependent activity binding organic cyclic compound binding nucleic acid binding nuclease 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 helicase activity ATP-dependent activity binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds 3'-5' exonuclease activity hydrolase activity exonuclease activity cation binding ion binding metal ion binding small molecule binding	nucleobase-containing compound metabolic process DNA replication metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036844	Hint domain superfamily	Homologous Superfamily
A	IPR040982	DNA polymerase III alpha subunit finger domain	Domain
A	IPR004013	PHP domain	Domain
A	IPR006141	Intein N-terminal splicing region	PTM
A	IPR016195	Polymerase/histidinol phosphatase-like	Homologous Superfamily
A	IPR003587	Hint domain N-terminal	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	IPR004805	Error-prone DNA polymerase/DNA polymerase III subunit alpha DnaE/PolC	Family
B	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
B	IPR030934	Intein C-terminal splicing region	Conserved Site
B	IPR029460	DNA polymerase, helix-hairpin-helix motif	Domain
B	IPR004805	Error-prone DNA polymerase/DNA polymerase III subunit alpha DnaE/PolC	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.