title: Crystallization and preliminary X-ray diffraction studies of piratoxin III, a D-49 phospholipase A2 from the venom of Bothrops pirajai.
abstract: Piratoxin III (PrTX-III) is a phospholipase A2 (PLA2, E.C. 3.1.1.4, phosphatide sn-2 acylhydrolase) isolated from Bothrops pirajai. Crystals of PrTX-III were obtained using the vapour-diffusion technique and X-ray diffraction data have been collected to 2.7 A resolution. The enzyme was crystallized in the space group C2 with unit-cell parameters a = 60.88, b = 100.75, c = 48.19 A, beta = 123. 89 degrees. A molecular-replacement solution of the structure has been found using bothropstoxin I from the venom of B. jararacussu as a search model.
mesh_terms: D000818:Animals; D017837:Bothrops; D003435:Crotalid Venoms / Q000737:chemistry*; D003460:Crystallization; D018360:Crystallography, X-Ray; D054501:Group II Phospholipases A2; D010741:Phospholipases A / Q000737:chemistry*; D054467:Phospholipases A2; D011487:Protein Conformation