Annotations: 4I15

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d4i15b_	All alpha proteins	HD-domain/PDEase-like	HD-domain/PDEase-like	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)
A	d4i15a_	All alpha proteins	HD-domain/PDEase-like	HD-domain/PDEase-like	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	HD-domain/PDEase-like	8067459	3000943	SCOP2B (2022-06-29)
A	SCOP2 Family	PDEase-like	8067458	4001423	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	HD-domain/PDEase-like	8067459	3000943	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)
B	PDEase_I	e4i15B1	A: alpha complex topology	X: PDEase-like	H: HD-domain/PDEase-like (From Topology)	T: HD-domain/PDEase-like	F: PDEase_I	ECOD (1.6)
A	PDEase_I	e4i15A1	A: alpha complex topology	X: PDEase-like	H: HD-domain/PDEase-like (From Topology)	T: HD-domain/PDEase-like	F: PDEase_I	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.1300.10	Mainly Alpha	Orthogonal Bundle	Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b	3'5'-cyclic nucleotide phosphodiesterase, catalytic domain	CATH (4.3.0)
A	1.10.1300.10	Mainly Alpha	Orthogonal Bundle	Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b	3'5'-cyclic nucleotide phosphodiesterase, catalytic domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00233	3'5'-cyclic nucleotide phosphodiesterase (PDEase_I)	3'5'-cyclic nucleotide phosphodiesterase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Class 1 phosphodiesterase PDEB1	phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity 3',5'-cyclic-nucleotide phosphodiesterase activity hydrolase activity cyclic-nucleotide phosphodiesterase activity catalytic activity 3',5'-cyclic-AMP phosphodiesterase activity cation binding ion binding binding metal ion binding small molecule binding	developmental process anatomical structure morphogenesis anatomical structure development cell morphogenesis cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cellular process signal transduction cell communication	membrane-bounded organelle intracellular anatomical structure axoneme ciliary plasm cilium intracellular membraneless organelle cytoplasmic region plasma membrane bounded cell projection cytoplasm plasma membrane bounded cell projection intracellular organelle cell projection cellular anatomical structure cytoskeleton organelle membrane-bounded organelle intracellular anatomical structure axoneme ciliary plasm cilium intracellular membraneless organelle cytoplasmic region plasma membrane bounded cell projection cytoplasm plasma membrane bounded cell projection intracellular organelle cell projection cellular anatomical structure cytoskeleton organelle membraneless organelle cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003607	HD/PDEase domain	Domain
A, B	IPR002073	3'5'-cyclic nucleotide phosphodiesterase, catalytic domain	Domain
A, B	IPR036971	3'5'-cyclic nucleotide phosphodiesterase, catalytic domain superfamily	Homologous Superfamily
A, B	IPR003018	GAF domain	Domain
A, B	IPR029016	GAF-like domain superfamily	Homologous Superfamily
A, B	IPR023088	3'5'-cyclic nucleotide phosphodiesterase	Family
A, B	IPR023174	3'5'-cyclic nucleotide phosphodiesterase, conserved site	Conserved Site

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.