Article
Structures of the alpha L I domain and its complex with ICAM-1 reveal a shape-shifting pathway for integrin regulation.
Cell - 10 Jan 2003
Shimaoka Motomu, Xiao Tsan, Liu Jin-Huan, Yang Yuting, Dong Yicheng, Jun Chang-Duk, McCormack Alison, Zhang Rongguang, Joachimiak Andrzej, Takagi Junichi, Wang Jia-Huai, Springer Timothy A
Abstract excerpt
The structure of the I domain of integrin alpha L beta 2 bound to the Ig superfamily ligand ICAM-1 reveals the open ligand binding conformation and the first example of an integrin-IgSF interface. The I domain Mg2+ directly coordinates Glu-34 of ICAM-1, and a dramatic swing of I domain residue Glu-241 enables a critical salt bridge. Liganded and unliganded structures for both high- and intermediate-affinity...
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