title: Purification and preliminary crystallographic analysis of a new Lys49-PLA2 from B. Jararacussu.
abstract: BjVIII is a new myotoxic Lys49-PLA2 isolated from Bothrops jararacussu venom that exhibits atypical effects on human platelet aggregation. To better understand the mode of action of BjVIII, crystallographic studies were initiated. Two crystal forms were obtained, both containing two molecules in the asymmetric unit (ASU). Synchrotron radiation diffraction data were collected to 2.0 A resolution and 1.9 A resolution for crystals belonging to the space group P2(1)2(1)2(1) (a = 48.4 A, b = 65.3 A, c = 84.3 A) and space group P3(1)21 (a = b = 55.7 A, c = 127.9 A), respectively. Refinement is currently in progress and the refined structures are expected to shed light on the unusual platelet aggregation activity observed for BjVIII.
authors.affiliation: Laboratório de Biologia Estrutural e Cristalografia, Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970, Campinas-SP, Brazil.
authors.forename: Marcelo L
authors.initials: ML
authors.lastname: Dos Santos
authors.affiliation: Instituto de Biologia, Universidade Estadual de Campinas, Campinas-SP, Brazil.
authors.forename: Fábio H R
authors.initials: FHR
authors.lastname: Fagundes
authors.affiliation: Laboratório de Biologia Estrutural e Cristalografia, Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970, Campinas-SP, Brazil.
authors.forename: Bruno R F
authors.initials: BRF
authors.lastname: Teixeira
authors.affiliation: Laboratório de Química de Macromoléculas, UNESP/CLP, São Vicente-SP, Brazil.
authors.forename: Marcos H
authors.initials: MH
authors.lastname: Toyama
authors.affiliation: Laboratório de Biologia Estrutural e Cristalografia, Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970, Campinas-SP, Brazil.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Aparicio