Annotations: 2AE9

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2ae9a_	All alpha proteins	DNA polymerase III theta subunit-like	DNA polymerase III theta subunit-like	DNA polymerase III theta subunit-like	Theta subunit of DNA polymerase III	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	DNA polymerase III theta subunit-like	8024553	4000612	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DNA polymerase III theta subunit-like	8036932	3000744	SCOP2 (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	DNA_pol3_theta	e2ae9A1	A: alpha arrays	X: DNA polymerase III theta subunit-like	H: DNA polymerase III theta subunit-like (From Topology)	T: DNA polymerase III theta subunit-like	F: DNA_pol3_theta	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.58.250	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF06440	DNA polymerase III, theta subunit (DNA_pol3_theta)	DNA polymerase III, theta subunit	DNA polymerase III (EC 2.7.7.7) is comprised of three tightly associated subunits, alpha, epsilon and theta. This family contains the theta subunit. The structure of the theta subunit shows that the N-terminal two thirds is comprised of three helic ...	DNA polymerase III (EC 2.7.7.7) is comprised of three tightly associated subunits, alpha, epsilon and theta. This family contains the theta subunit. The structure of the theta subunit shows that the N-terminal two thirds is comprised of three helices while the C-terminal third is disordered [1]. The function of the theta subunit is poorly understood, but the interaction of the theta subunit with the epsilon subunit is thought to enhance the 3' to 5' exonucleolytic proofreading activity of epsilon [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA polymerase III, theta 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 organic cyclic compound binding nucleic acid binding	DNA-templated DNA replication lagging strand elongation primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA strand elongation organic substance metabolic process DNA replication metabolic process DNA strand elongation involved in DNA replication macromolecule metabolic process leading strand elongation	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle protein-containing complex catalytic complex nucleus nuclear protein-containing complex transferase complex intracellular membrane-bounded organelle DNA polymerase complex transferase complex, transferring phosphorus-containing groups intracellular organelle intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle protein-containing complex catalytic complex nucleus nuclear protein-containing complex transferase complex intracellular membrane-bounded organelle DNA polymerase complex transferase complex, transferring phosphorus-containing groups intracellular organelle DNA polymerase III, core complex DNA polymerase III complex organelle intracellular protein-containing complex protein-DNA complex chromosome intracellular non-membrane-bounded organelle replication fork replisome non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036745	DNA polymerase III-theta superfamily	Homologous Superfamily
A	IPR009052	DNA polymerase III-theta, bacterial	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.