2aib

beta-cinnamomin in complex with ergosterol

spinqualitylabelsall models 2aib, resolution 1.10Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2aib is a 2 chain structure with sequence from Phytophthora cinnamomi. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.1Å Ligands: ERG, GOL, MES Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function ELIB_PHYCI 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. Elicitins are able to load, carry, and transfer sterols between membranes. 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 PubMed The crystal structure of the elicitin beta-cinnamomin (beta-CIN) was determined in complex with ergosterol at 1.1 A resolution. beta-CIN/ergosterol complex crystallized in the monoclinic space group P2(1), with unit cell parameters of a = 31.0, b = 62.8, c = 50.0 A and beta = 93.4 degrees and two molecules in the asymmetric unit. Ligand extraction with chloroform followed by crystallographic analysis yielded a 1.35 A structure of beta-CIN (P4(3)2(1)2 space group) where the characteristic elicitin fold was kept. After incubation with cholesterol, a new complex structure was obtained, showing that the protein retains, after the extraction procedure, its ability to complex sterols. The necrotic effect of beta-CIN on tobacco was also shown to remain unchanged. Theoretical docking studies of the triterpene lupeol to beta-CIN provided an explanation for the apparent inability of beta-CIN to bind this ligand, as observed experimentally. Crystal structures of the free and sterol-bound forms of beta-cinnamomin.,Rodrigues ML, Archer M, Martel P, Miranda S, Thomaz M, Enguita FJ, Baptista RP, Pinho e Melo E, Sousa N, Cravador A, Carrondo MA Biochim Biophys Acta. 2006 Jan;1764(1):110-21. Epub 2005 Oct 6. PMID:16249127 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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