1IT4 | pdb_00001it4

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1it4a_	All alpha proteins	Phospholipase A2, PLA2	Phospholipase A2, PLA2	Prokaryotic phospholipase A2	Prokaryotic phospholipase A2	(Streptomyces violaceoruber ) [TaxId: 1935 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Phospholipase A2, PLA2	8033015	3001690	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HIPIP	e1it4A1	A: beta barrels	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: HIPIP	ECOD (v294.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.90.10	Mainly Alpha	Up-down Bundle	Phospholipase A2	Phospholipase A2 domain	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	phospholipase A2	phospholipase activity A2-type glycerophospholipase activity hydrolase activity, acting on ester bonds glycerophospholipase activity carboxylic ester hydrolase activity hydrolase activity catalytic activity lipase activity cation binding ion binding binding metal ion binding small molecule binding	organic anion transport carboxylic acid transport secretion transport arachidonate transport lipid localization lipid transport establishment of localization organic acid transport localization arachidonate secretion monocarboxylic acid transport fatty acid transport icosanoid transport macromolecule localization organic anion transport carboxylic acid transport secretion transport arachidonate transport lipid localization lipid transport establishment of localization organic acid transport localization arachidonate secretion monocarboxylic acid transport fatty acid transport icosanoid transport macromolecule localization icosanoid secretion long-chain fatty acid transport phospholipid metabolic process organophosphate metabolic process phosphate-containing compound metabolic process metabolic process cellular process primary metabolic process phosphorus metabolic process lipid metabolic process	-

Chains	Accession	Name	Type
A	IPR036444	Phospholipase A2 domain superfamily	Homologous Superfamily
A	IPR015141	Phospholipase A2, prokaryotic/fungal	Family

Chains	Enzyme Name	Description	Catalytic Residues
A	phospholipase A2 (prokaryotic/fungal) M-CSA #528	The secreted phospholipase A2 (PLA2) from Streptomyces violaceoruber is the first identified prokaryotic PLA2. This Ca II dependent, lipolytic enzyme hydrolyses the 2-acyl ester bonds of 1,2-diacylglycero-3-phospholipids. The very high catalytic activities of secreted PLA2's relative to the aggregated substrates when compared to the monomeric substrates is due to interfacial activation.	Defined by 5 residues: ASP:A-43LEU:A-44HIS:A-64ASP:A-65ASP:A-85 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.1.1.4 (PDB Primary Data) Search M-CSA Motif + EC 3.1.1.4

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.