1lri
From Proteopedia
BETA-CRYPTOGEIN-CHOLESTEROL COMPLEX
Structural highlights
FunctionELIB_PHYCR Induces local and distal defense responses (incompatible hypersensitive reaction) in plants from the solanaceae and cruciferae families. Elicits leaf necrosis and causes the accumulation of pathogenesis-related proteins. Might interact with the lipidic molecules of the plasma membrane. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedCryptogein is a small 10 kDa elicitor produced by the phytoparasitic oomycete Phytophthora cryptogea. The protein also displays a sterol carrier activity. The native protein crystallizes in space group P4(1)22, with unit-cell parameters a = b = 46.51, c = 134.9 A (diffraction limit: 2.1 A). Its complex with cholesterol crystallizes in space group C222(1), with unit-cell parameters a = 30.96, b = 94.8, c = 65.3 A and a resolution enhanced to 1.45 A. The large inner non-specific hydrophobic cavity is able to accommodate a large variety of 3-beta-hydroxy sterols. Cryptogein probably acts as a sterol shuttle helping the pathogen to grow and complete its life cycle. The 1.45 A resolution structure of the cryptogein-cholesterol complex: a close-up view of a sterol carrier protein (SCP) active site.,Lascombe MB, Ponchet M, Venard P, Milat ML, Blein JP, Prange T Acta Crystallogr D Biol Crystallogr. 2002 Sep;58(Pt 9):1442-7. Epub 2002, Aug 23. PMID:12198300[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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