Identification of G-proteins in rat parotid gland plasma membranes and granule membranes: presence of distinct components in granule membranes

Abstract

We have identified by immunoblotting and ADP-ribosylation by cholera toxin and pertussis toxin the presence of Mr 43 and 46 KDa Gsα, and 39 and 41 KDa Giα;.. subunits in rat parotid gland plasma membranes but not in granule membranes. A Mr 28 KDa polypeptide that served as substrate for ADP-ribosylation by both cholera toxin and pertussis toxin was present… (More)
DOI: 10.1007/BF00230326

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