... present in the protein kinase-like domain in the basal state [2].Mutation of any of these sites to alanine led to a decrease in ANP-mediated activation and simultaneous mutations in all the sites ... S.L.,Richardson,K.C.,Fok,K.F.,Currie,M.G.&Forte,L.R.(1994)Distribution of heat-stable enterotoxin/guanylin receptors in the intestinal tract of man and other mammals. J. Anat. 184, 407–417.6. Qian,X.,Prabhakar,S.,Nandi ,A. ,Visweswariah,S.S.&Goy,M.F. ... 10 min at 37 °Cwith4mMMgCl2and 1 mMGTP as substrate.Receptor binding analysisSTY72Fwas iodinated using Na125I as described earlier [30]and was available in the laboratory. Membrane...