Detail Information for IndEnz0002012763
IED ID IndEnz0002012763
Enzyme Type ID protease012763
Protein Name Acidic phospholipase A2 beta-bungarotoxin A6 chain
Beta-BuTX A6 chain
svPLA2
EC 3.1.1.4
Phosphatidylcholine 2-acylhydrolase
Fragment
Gene Name
Organism Bungarus multicinctus (Many-banded krait)
Taxonomic Lineage cellular organisms Eukaryota Opisthokonta Metazoa Eumetazoa Bilateria Deuterostomia Chordata Craniata Vertebrata Gnathostomata (jawed vertebrates) Teleostomi Euteleostomi Sarcopterygii Dipnotetrapodomorpha Tetrapoda Amniota Sauropsida Sauria (diapsids) Lepidosauria (lepidosaurs) Squamata (squamates) Bifurcata (split-tongued squamates) Unidentata Episquamata Toxicofera Serpentes (snakes) Colubroidea Elapidae Bungarinae Bungarus Bungarus multicinctus (Many-banded krait)
Enzyme Sequence AVCVSLLGAANIPPQHLNLYQFKEMIRYTIPCEKTWGEYADYGCYCGAGGSGTPIDALDRCCYVHDNCYGDAAKIRGCDPKTQSYSYKLTQRTIICYGAAGTCARVVCDCDRTAALCFGNSEYIEGHKNIDTKRHCQ
Enzyme Length 137
Uniprot Accession Number Q90251
Absorption
Active Site ACT_SITE 65; /evidence=ECO:0000250; ACT_SITE 111; /evidence=ECO:0000250
Activity Regulation
Binding Site
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=a 1,2-diacyl-sn-glycero-3-phosphocholine + H2O = a 1-acyl-sn-glycero-3-phosphocholine + a fatty acid + H(+); Xref=Rhea:RHEA:15801, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:28868, ChEBI:CHEBI:57643, ChEBI:CHEBI:58168; EC=3.1.1.4; Evidence={ECO:0000255|PROSITE-ProRule:PRU10035, ECO:0000255|PROSITE-ProRule:PRU10036};
DNA Binding
EC Number 3.1.1.4
Enzyme Function FUNCTION: Snake venom phospholipase A2 (PLA2) that inhibits neuromuscular transmission by blocking acetylcholine release from the nerve termini. PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides (By similarity). {ECO:0000250}.
Temperature Dependency
PH Dependency
Pathway
nucleotide Binding
Features Active site (2); Chain (1); Disulfide bond (7); Metal binding (4); Non-terminal residue (1); Signal peptide (1)
Keywords Calcium;Disulfide bond;Hydrolase;Lipid degradation;Lipid metabolism;Metal-binding;Neurotoxin;Presynaptic neurotoxin;Secreted;Signal;Toxin
Interact With
Induction
Subcellular Location SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
Modified Residue
Post Translational Modification
Signal Peptide SIGNAL <1..17; /evidence=ECO:0000250
Structure 3D
Cross Reference PDB -
Mapped Pubmed ID -
Motif
Gene Encoded By
Mass 15,103
Kinetics
Metal Binding METAL 45; /note=Calcium; via carbonyl oxygen; /evidence=ECO:0000250; METAL 47; /note=Calcium; via carbonyl oxygen; /evidence=ECO:0000250; METAL 49; /note=Calcium; via carbonyl oxygen; /evidence=ECO:0000250; METAL 66; /note=Calcium; /evidence=ECO:0000250
Rhea ID RHEA:15801
Cross Reference Brenda