Annotations: 2DUN

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e2dunA1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Class I glutamine amidotransferase-like	T: Cation_ATPase_C,Cation_ATPase_N	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.10190	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	BRCT domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA polymerase mu	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 cation binding ion binding metal ion binding 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 cation binding ion binding metal ion binding small molecule binding	developmental process multicellular organismal process cellular developmental process hemopoiesis B cell activation cell activation cell development mononuclear cell differentiation lymphocyte differentiation lymphocyte activation leukocyte activation B cell differentiation cell differentiation immune system process anatomical structure development developmental process multicellular organismal process cellular developmental process hemopoiesis B cell activation cell activation cell development mononuclear cell differentiation lymphocyte differentiation lymphocyte activation leukocyte activation B cell differentiation cell differentiation immune system process anatomical structure development cellular process leukocyte differentiation immune system development production of molecular mediator of immune response immunoglobulin production somatic diversification of immune receptors via somatic mutation gene expression macromolecule biosynthetic process somatic diversification of immunoglobulins multicellular organism development biosynthetic process somatic diversification of immune receptors metabolic process macromolecule metabolic process somatic hypermutation of immunoglobulin genes system development nucleobase-containing compound metabolic process DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process cellular response to stimulus double-strand break repair response to stimulus double-strand break repair via nonhomologous end joining cellular response to stress DNA damage response response to stress DNA repair	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR028207	DNA polymerase beta, palm domain	Domain
A	IPR037160	DNA polymerase, thumb domain superfamily	Homologous Superfamily
A	IPR010996	Crossover junction endonuclease MUS81-like, HHH domain	Domain
A	IPR019843	DNA polymerase family X, binding site	Binding Site
A	IPR022312	DNA polymerase family X	Family
A	IPR001726	DNA nucleotidylexotransferase (TdT) / DNA-directed DNA/RNA polymerase mu	Family
A	IPR029398	DNA polymerase beta, thumb domain	Domain
A	IPR018944	DNA polymerase lambda, fingers domain	Domain
A	IPR043519	Nucleotidyltransferase superfamily	Homologous Superfamily
A	IPR001357	BRCT domain	Domain
A	IPR027421	DNA polymerase lambda lyase domain superfamily	Homologous Superfamily
A	IPR036420	BRCT domain superfamily	Homologous Superfamily
A	IPR002054	DNA-directed DNA polymerase X	Domain
A	IPR027249	DNA-directed DNA/RNA polymerase mu	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9NP87	carpal tunnel syndrome xeroderma pigmentosum

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.