Structural highlights
Function
PA2B1_VIPNI Heterodimer: shows the same activities as the monomer, but with a lower potency. Monomer: snake venom phospholipase A2 (PLA2) that shows presynaptic neurotoxicity, anticoagulant activity and that weakly inhibits ADP-induced platelet aggregation (PubMed:18083205). Inhibits exocytosis in pancreatic beta cells, confirming it can act presynaptically in inhibiting the exocytosis of neurotransmitters in neurons (PubMed:19500614). PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides.[1] [2]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
See Also
References
- ↑ Ramazanova AS, Zavada LL, Starkov VG, Kovyazina IV, Subbotina TF, Kostyukhina EE, Dementieva IN, Ovchinnikova TV, Utkin YN. Heterodimeric neurotoxic phospholipases A2--the first proteins from venom of recently established species Vipera nikolskii: implication of venom composition in viper systematics. Toxicon. 2008 Mar 15;51(4):524-37. Epub 2007 Nov 9. PMID:18083205 doi:http://dx.doi.org/S0041-0101(07)00395-9
- ↑ Gao W, Starkov VG, He ZX, Wang QH, Tsetlin VI, Utkin YN, Lin ZJ, Bi RC. Functions, structures and Triton X-100 effect for the catalytic subunits of heterodimeric phospholipases A2 from Vipera nikolskii venom. Toxicon. 2009 Nov;54(6):709-16. doi: 10.1016/j.toxicon.2009.05.024. Epub 2009 Jun, 3. PMID:19500614 doi:http://dx.doi.org/10.1016/j.toxicon.2009.05.024
