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Structure of a liganded type 2 wheat non-specific lipid transfer protein and the molecular basis of lipid binding Inra
Hoh, F.; Pons, J.-L.; Gautier, M.F.; De Lamotte, F.; Dumas, C..
In plants, a family of ubiquitous proteins named non-specific lipid-transfer proteins (ns-LTPs) facilitates the transfer of fatty acids, phospholipids and steroids between membranes. Recent data suggest that these secreted proteins play a key role in the formation of cuticular wax layers and in defence mechanisms against pathogens. In this study, X-ray crystallography has been used to examine the structural details of the interaction between a wheat type 2 ns-LTP and a lipid, l-­α-­palmitoyl-phosphatidyl glycerol. This crystal structure was solved ab initio at 1.12 Å resolution by direct methods. The typical α-­helical bundle fold of this protein is maintained by four disulfide bridges and delineates two hydrophobic cavities. The inner surface of the main...
Tipo: Journal Article Palavras-chave: PROTEINE DE TRANSFERT DES LIPIDES; LPT; STRUCTURE TRIDIMENSIONNELLE; CUTICULE NS-LTP2; LIPID-TRANSFER PROTEIN; LIPID BINDING.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200711dfadf3&uri=/notices/prodinra1/2009/03/
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