Article
Identification of ligand recognition sites in heat-stable enterotoxin receptor, membrane-associated guanylyl cyclase C by site-directed mutational analysis.
Infection and immunity - 1 Dec 1996
Wada A, Hirayama T, Kitaura H, Fujisawa J, Hasegawa M, Hidaka Y, Shimonishi Y
Abstract excerpt
Guanylyl cyclase C (STaR), a receptor protein for heat-stable enterotoxin (STa) elaborated by Escherichia coli, is associated with and spans the plasma membrane of mammalian intestinal cells. The extracellular domain functions in the binding of STa and the association of each domain to an oligomeric form. Two amino acid residues, Arg-136 and Asp-347, were identified as the residues binding to STa in the...
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