1R16

Aplysia ADP ribosyl cyclase with bound pyridylcarbinol and R5P

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1r16a_	Alpha and beta proteins (a/b)	Flavodoxin-like	N-(deoxy)ribosyltransferase-like	ADP ribosyl cyclase-like	ADP ribosyl cyclase	California sea hare (Aplysia californica ) [TaxId: 6500 ],	SCOPe (2.08)
B	d1r16b_	Alpha and beta proteins (a/b)	Flavodoxin-like	N-(deoxy)ribosyltransferase-like	ADP ribosyl cyclase-like	ADP ribosyl cyclase	California sea hare (Aplysia californica ) [TaxId: 6500 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	N-(deoxy)ribosyltransferase-like	8040192	3001392	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	N-(deoxy)ribosyltransferase-like	8040192	3001392	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	Rib_hydrolayse	e1r16A1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: N-deoxyribosyltransferase (From Topology)	T: N-deoxyribosyltransferase	F: Rib_hydrolayse	ECOD (1.6)
B	Rib_hydrolayse	e1r16B1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: N-deoxyribosyltransferase (From Topology)	T: N-deoxyribosyltransferase	F: Rib_hydrolayse	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.82.10	Mainly Alpha	Up-down Bundle	ADP Ribosyl Cyclase	Chain A, domain 1	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	1.20.82.10	Mainly Alpha	Up-down Bundle	ADP Ribosyl Cyclase	Chain A, domain 1	CATH (4.3.0)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02267	ADP-ribosyl cyclase (Rib_hydrolayse)	ADP-ribosyl cyclase	ADP-ribosyl cyclase EC:3.2.2.5 (also know as cyclic ADP-ribose hydrolase or CD38) synthesises cyclic-ADP ribose, a second messenger for glucose-induced insulin secretion.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	ADP-ribosyl cyclase	NAD+ nucleosidase activity hydrolase activity, acting on glycosyl bonds hydrolase activity hydrolase activity, hydrolyzing N-glycosyl compounds catalytic activity NAD+ nucleotidase, cyclic ADP-ribose generating phosphorus-oxygen lyase activity lyase activity transferase activity	multicellular organismal process regulation of cellular process positive regulation of cell population proliferation positive regulation of B cell proliferation regulation of leukocyte activation positive regulation of biological process regulation of cell activation lymphocyte activation leukocyte proliferation leukocyte activation positive regulation of lymphocyte activation positive regulation of cell activation regulation of B cell proliferation lymphocyte proliferation regulation of B cell activation multicellular organismal process regulation of cellular process positive regulation of cell population proliferation positive regulation of B cell proliferation regulation of leukocyte activation positive regulation of biological process regulation of cell activation lymphocyte activation leukocyte proliferation leukocyte activation positive regulation of lymphocyte activation positive regulation of cell activation regulation of B cell proliferation lymphocyte proliferation regulation of B cell activation positive regulation of leukocyte activation positive regulation of mononuclear cell proliferation regulation of multicellular organismal process regulation of immune system process positive regulation of immune system process positive regulation of cellular process regulation of lymphocyte proliferation regulation of leukocyte proliferation regulation of biological process cell population proliferation B cell activation biological regulation cell activation positive regulation of lymphocyte proliferation B cell proliferation positive regulation of B cell activation regulation of cell population proliferation mononuclear cell proliferation immune system process positive regulation of leukocyte proliferation regulation of mononuclear cell proliferation positive regulation of multicellular organismal process cellular process regulation of lymphocyte activation sexual reproduction reproductive process fertilization single fertilization	membrane-bounded organelle intracellular organelle intracellular anatomical structure cytoplasmic vesicle organelle intracellular vesicle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle vesicle cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003193	ADP-ribosyl cyclase (CD38/157)	Family

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	ADP-ribosyl cyclase M-CSA #607	ADP-ribosyl cyclase catalyses the elimination of nicotinamide from NAD and cyclisation of cADPR. It has been identified in many organisms from microbes to mammals. The product from this enzyme, cADPR, is a second messenger in cellular calcium signalling pathways and it regulates the concentration of calcium ions in a variety of mammalian and non-mammalian cell types.	Defined by 3 residues: GLU:A-98PHE:A-174GLU:A-179 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.2.2.5 (PDB Primary Data) Search M-CSA Motif + EC 3.2.2.5 EC: 3.2.2 (UniProt) Search M-CSA Motif + EC 3.2.2 EC: 2.4.99.20 (UniProt) Search M-CSA Motif + EC 2.4.99.20

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.