1FUV

SOLUTION STRUCTURE OF AN RGD PEPTIDE ISOMER-A

1FUV の概要

• エントリーDOI: 10.2210/pdb1fuv/pdb
• 関連するPDBエントリー: 1FUL
• 分子名称: RGD PEPTIDE ISOMER-A (1 entity in total)
• 機能のキーワード: double s-s bonds, type i beta-turn, cell adhesion
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 1150.31

構造登録者

Assa-Munt, N.,Jia, X.,Laakkonen, P.,Ruoslahti, E. (登録日: 2000-09-15, 公開日: 2001-05-16, 最終更新日: 2024-10-09)

主引用文献

Assa-Munt, N.,Jia, X.,Laakkonen, P.,Ruoslahti, E.
Solution structures and integrin binding activities of an RGD peptide with two isomers.
Biochemistry, 40:2373-2378, 2001

PubMed Abstract: 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.

PubMed: 11327857
DOI: 10.1021/bi002101f

実験手法

SOLUTION NMR