Annotations: 9ERT

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	LigT-like	8077322	3001408	SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	2',3'-cyclic-nucleotide 3'-phosphodiesterase	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF05881	2',3'-cyclic nucleotide 3'-phosphodiesterase (CNP or CNPase) (CNPase)	2',3'-cyclic nucleotide 3'-phosphodiesterase (CNP or CNPase)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Chains: B	-	-	-
A	2',3'-cyclic-nucleotide 3'-phosphodiesterase	phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity hydrolase activity 2',3'-cyclic-nucleotide 3'-phosphodiesterase activity cyclic-nucleotide phosphodiesterase activity catalytic activity RNA binding binding nucleic acid binding	adult locomotory behavior behavior multicellular organismal process adult behavior locomotory behavior developmental process cellular developmental process nervous system development multicellular organism development neurogenesis central nervous system development gliogenesis oligodendrocyte differentiation glial cell differentiation adult locomotory behavior behavior multicellular organismal process adult behavior locomotory behavior developmental process cellular developmental process nervous system development multicellular organism development neurogenesis central nervous system development gliogenesis oligodendrocyte differentiation glial cell differentiation cell differentiation anatomical structure development cellular process system development nucleoside phosphate metabolic process catabolic process organophosphate catabolic process primary metabolic process cyclic nucleotide catabolic process nucleoside phosphate catabolic process nucleotide metabolic process cyclic nucleotide metabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process metabolic process small molecule metabolic process phosphorus metabolic process nucleotide catabolic process response to stimulus response to chemical response to toxic substance axonogenesis cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis cellular component organization cell projection morphogenesis neuron differentiation neuron projection morphogenesis cellular component organization or biogenesis plasma membrane bounded cell projection organization axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron development	cellular anatomical structure membrane myelin sheath membrane-bounded organelle intracellular anatomical structure pigment granule intracellular vesicle intracellular membrane-bounded organelle intracellular organelle melanosome cytoplasmic vesicle organelle cytoplasm vesicle cellular anatomical structure membrane myelin sheath membrane-bounded organelle intracellular anatomical structure pigment granule intracellular vesicle intracellular membrane-bounded organelle intracellular organelle melanosome cytoplasmic vesicle organelle cytoplasm vesicle extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR047325	Cyclic nucleotide phosphodiesterase, catalytic domain	Domain
A	IPR009097	Cyclic phosphodiesterase	Homologous Superfamily
A	IPR008431	Cyclic nucleotide phosphodiesterase	Family
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

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.