1L8S
CARBOXYLIC ESTER HYDROLASE COMPLEX (DIMERIC PLA2 + LPC-ether + ACETATE + PHOSPHATE IONS)
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | d1l8sa_ | All alpha proteins | Phospholipase A2, PLA2 | Phospholipase A2, PLA2 | Vertebrate phospholipase A2 | Phospholipase A2 | pig (Sus scrofa ) [TaxId: 9823 ], | SCOPe (2.08) |
B | d1l8sb_ | All alpha proteins | Phospholipase A2, PLA2 | Phospholipase A2, PLA2 | Vertebrate phospholipase A2 | Phospholipase A2 | pig (Sus scrofa ) [TaxId: 9823 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | Phospholip_A2_1 | e1l8sA1 | A: few secondary structure elements | X: Phospholipase A2, PLA2 (From Topology) | H: Phospholipase A2, PLA2 (From Topology) | T: Phospholipase A2, PLA2 | F: Phospholip_A2_1 | ECOD (1.6) |
B | Phospholip_A2_1 | e1l8sB1 | A: few secondary structure elements | X: Phospholipase A2, PLA2 (From Topology) | H: Phospholipase A2, PLA2 (From Topology) | T: Phospholipase A2, PLA2 | F: Phospholip_A2_1 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
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) |
B | 1.20.90.10 | Mainly Alpha | Up-down Bundle | Phospholipase A2 | Phospholipase A2 domain | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF00068 | Phospholipase A2 (Phospholip_A2_1) | Phospholipase A2 | Phospholipase A2 releases fatty acids from the second carbon group of glycerol. Perhaps the best known members are secreted snake venoms, but also found in secreted pancreatic and membrane-associated forms. Structure is all-alpha, with two core disul ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR033112 | Phospholipase A2, aspartic acid active site | Active Site | |
IPR033113 | Phospholipase A2, histidine active site | Active Site | |
IPR001211 | Phospholipase A2 | Family | |
IPR036444 | Phospholipase A2 domain superfamily | Homologous Superfamily | |
IPR016090 | Phospholipase A2 domain | Domain |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
phospholipase A2 (group IB) M-CSA #83 | PLA2 catalyses the hydroylsis of the 2-acyl ester of 1,2-diacylphosphatides. Two forms of PLA2 are known: the small secretory PLA2s which are amphipathic molecules usually found associated with lipid membranes, and the larger cytosolic forms. This annotation is for the small secretory form. Secretory PLA2s form part of the neurotoxic component of many snake and bee venoms due to its ability to block acetylcholine release. Secretory PLA2s have been divided into 3 main groups: I, II, and III. Class I (present in some snake venoms and in mammalian exocrine pancrease) and II (present in some snake venoms and also broadly distributed among a variety of mammalian cell types) are closely related to each other. The class III enzymes (including venom enzymes from the honeybee and the Gila monster) appear to form a separate divergent group though their active site and mechanism is similar. The key catalytic histidine and aspartate are in very similar orientations however the residues making up the rest of the hydrogen bond network are not conserved spatially. | Defined by 8 residues: TYR:B-28GLY:B-30GLY:B-32HIS:B-48ASP:B-49TYR:B-52TYR:B-73ASP:B-99 | EC: 3.1.1.4 (PDB Primary Data) |