Annotations: 5TD5

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytidine deaminase-like	8105523	3001838	SCOP2B (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	APOBEC_N	e5td5A1	A: a+b three layers	X: Cytidine deaminase-like (From Topology)	H: Cytidine deaminase-like (From Topology)	T: Cytidine deaminase-like	F: APOBEC_N	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF05240	APOBEC-like C-terminal domain (APOBEC_C)	APOBEC-like C-terminal domain	This domain is found at the C-termini of the Apolipoprotein B mRNA editing enzyme.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA dC->dU-editing enzyme APOBEC-3B	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines cytidine deaminase activity hydrolase activity catalytic activity deaminase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding RNA binding hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines cytidine deaminase activity hydrolase activity catalytic activity deaminase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding RNA binding organic cyclic compound binding nucleic acid binding	nucleobase-containing compound metabolic process DNA deamination DNA modification DNA cytosine deamination macromolecule modification metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process regulation of biological process regulation of cellular process negative regulation of cellular process biological regulation nucleobase-containing compound metabolic process DNA deamination DNA modification DNA cytosine deamination macromolecule modification metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process regulation of biological process regulation of cellular process negative regulation of cellular process biological regulation negative regulation of biological process cellular process retrotransposon silencing transposition retrotransposition RNA modification cytidine to uridine editing base conversion or substitution editing RNA metabolic process biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus viral life cycle negative regulation of cellular metabolic process negative regulation of RNA biosynthetic process regulation of primary metabolic process regulation of RNA metabolic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process cellular metabolic process negative regulation of metabolic process regulation of cellular metabolic process single stranded viral RNA replication via double stranded DNA intermediate negative regulation of cellular biosynthetic process viral genome replication biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of metabolic process negative regulation of RNA metabolic process regulation of single stranded viral RNA replication via double stranded DNA intermediate cellular biosynthetic process negative regulation of single stranded viral RNA replication via double stranded DNA intermediate RNA biosynthetic process nucleic acid biosynthetic process negative regulation of viral process viral RNA genome replication viral process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of viral genome replication regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of viral process regulation of viral life cycle negative regulation of biosynthetic process regulation of viral genome replication defense response to virus response to virus clearance of foreign intracellular DNA clearance of foreign intracellular nucleic acids	intracellular anatomical structure cytoplasmic ribonucleoprotein granule cellular anatomical entity ribonucleoprotein granule intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm supramolecular complex P-body non-membrane-bounded organelle membrane-bounded organelle nucleus membrane-enclosed lumen intracellular anatomical structure cytoplasmic ribonucleoprotein granule cellular anatomical entity ribonucleoprotein granule intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm supramolecular complex P-body non-membrane-bounded organelle membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
B [auth C]	DNA (5'-D(PTPTPCPAP*T)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050610	APOBEC Cytidine Deaminase	Family
A	IPR016193	Cytidine deaminase-like	Homologous Superfamily
A	IPR002125	Cytidine and deoxycytidylate deaminase domain	Domain
A	IPR016192	APOBEC/CMP deaminase, zinc-binding	Binding Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9UH17	squamous cell carcinoma urinary bladder cancer breast carcinoma cervical cancer Neoplastic Processes cancer head and neck cancer psoriasis urinary bladder neoplasm benign neoplasm IgA glomerulonephritis malignant tumor of neck neoplasm of neck non-small cell lung carcinoma breast cancer squamous cell carcinoma urinary bladder cancer breast carcinoma cervical cancer Neoplastic Processes cancer head and neck cancer psoriasis urinary bladder neoplasm benign neoplasm IgA glomerulonephritis malignant tumor of neck neoplasm of neck non-small cell lung carcinoma breast cancer head and neck neoplasm lung adenocarcinoma

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.