Crystallization, data collection and phasing of infestin 4, a factor XIIa inhibitor.
Acta Crystallogr D Biol Crystallogr
; 60(Pt 11): 2051-3, 2004 Nov.
Article
em En
| MEDLINE
| ID: mdl-15502324
Infestin is a protein from Triatoma infestans (kissing bug) composed of seven Kazal-type domains that is further processed to yield several serine protease inhibitors with varying specificities. Infestins 3 and 4 are the last two domains of the infestin gene and are found in vivo in the insect's anterior midgut. The last domain, infestin 4, has been cloned, expressed and purified. Here, the crystallization of infestin 4 using the sitting-drop vapour-diffusion method with PEG 8000 as precipitant is described. Crystals belong to the orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 25.89, b = 45.64, c = 57.41 A. X-ray diffraction data were collected to a maximum resolution of 1.8 A using a synchrotron-radiation source. Initial phases were calculated by molecular replacement using an edited rhodniin molecule as the search model. Structure refinement is in progress.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Triatoma
/
Proteínas Sanguíneas
/
Proteínas de Insetos
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Acta Crystallogr D Biol Crystallogr
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos