1fuv

SOLUTION STRUCTURE OF AN RGD PEPTIDE ISOMER-A

spinqualitylabelsall models 1fuv, 19 NMR models Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1fuv is a 1 chain structure. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Related: 1ful Resources: FirstGlance, OCA, RCSB, PDBsum Publication Abstract from PubMed The Arg-Gly-Asp (RGD) sequence serves as the primary integrin recognition site in extracellular matrix proteins, and peptides containing this sequence can mimic the activities of the matrix proteins. Depending on the context of the RGD sequence, an RGD-containing peptide may bind to all of the RGD-directed integrins, to a few, or to only a single one. We have previously isolated from a phage-displayed peptide library a cyclic peptide that binds avidly to the alpha(v)beta3 and alpha(v)beta5 integrins but does not bind to other closely related integrins. This peptide, ACDCRGDCFCG, exists in two natural configurations depending on internal disulfide bonding. The peptide with the 1-4; 2-3 disulfide bond arrangement accounts for most of the alpha(v) integrin binding activity, whereas the 1-3; 2-4 peptide is about 10-fold less potent. Solution structure analysis by nuclear magnetic resonance reveals an entirely different presentation of the RGD motif in the two isomers of RGD-4C. These results provide new insight into the ligand recognition specificity of integrins. Solution structures and integrin binding activities of an RGD peptide with two isomers.,Assa-Munt N, Jia X, Laakkonen P, Ruoslahti E Biochemistry. 2001 Feb 27;40(8):2373-8. PMID:11327857 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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