title: Crystallization and preliminary crystallographic study of the functional form of the Bacillus thuringiensis mosquito-larvicidal Cry4Aa mutant toxin.
abstract: The 65 kDa functional form of the mosquito-larvicidal Cry4Aa-R235Q mutant toxin has been crystallized. The crystals belong to space group C222(1), with unit-cell parameters a = 91.2, b = 202.1, c = 98.7 A, and contain one molecule per asymmetric unit. The crystals diffract to approximately 2.9 A using synchrotron radiation and a complete native data set has been collected. The structure has been solved using a molecular-replacement method with the Cry4Ba toxin protein as a search model.
authors.affiliation: Institute of Molecular Biology and Genetics, Mahidol University, Salaya Campus, Nakornpathom 73170, Thailand. mbpbs@mahidol.ac.th
authors.forename: Panadda
authors.initials: P
authors.lastname: Boonserm
authors.forename: Chanan
authors.initials: C
authors.lastname: Angsuthanasombat
authors.forename: Julien
authors.initials: J
authors.lastname: Lescar
mesh_terms: D001413:Bacillus thuringiensis / Q000737:chemistry* / Q000235:genetics; D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins / Q000737:chemistry* / Q000235:genetics* / Q000302:isolation & purification; D001427:Bacterial Toxins / Q000737:chemistry* / Q000235:genetics* / Q000302:isolation & purification; D003460:Crystallization; D018360:Crystallography, X-Ray; D004731:Endotoxins / Q000737:chemistry* / Q000235:genetics* / Q000302:isolation & purification; D006460:Hemolysin Proteins; D009154:Mutation / Q000235:genetics*
chemical_list: D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D001427:Bacterial Toxins; D004731:Endotoxins; D006460:Hemolysin Proteins; C030956:insecticidal crystal protein, Bacillus Thuringiensis