Open AccessCrystallization and preliminary X‐ray diffraction analysis of crotoxin B from Crotalus durissus collilineatus venom
Author(s) -
Salvador G. H. M.,
Fernandes C. A. H.,
Corrêa L. C.,
SantosFilho N. A.,
Soares A. M.,
Fontes M. R. M.
Publication year - 2009
Publication title -
acta crystallographica section f
Language(s) - English
Resource type - Journals
ISSN - 1744-3091
DOI - 10.1107/s1744309109032631
Subject(s) - venom , crotalus , myotoxin , envenomation , chemistry , biology , snake venom , biochemistry
Crotoxin B is a basic phospholipase A 2 found in the venom of several Crotalus durissus ssp. rattlesnakes and is one of the subunits that constitute crotoxin, the main component of the venom of these snakes. This heterodimeric toxin is related to important envenomation effects such as neurological disorders, myotoxicity and renal failure. Although crotoxin was first crystallized in 1938, the first structural data only became available in 2007 (for crotoxin B from C. durissus terrificus ) and showed an ambiguous result for the biological assembly, which could be either dimeric or tetrameric. In this work, the crystallization, X‐ray diffraction data collection at 2.2 Å resolution and molecular‐replacement solution of a dimeric complex formed by two crotoxin B isoforms from C. durissus collilineatus venom is presented.