title: Pentagastrin analogues containing alpha-aminooxy acids. VII. Catabolism in vivo and in vitro of a pentagastrin analogue containing N-terminal aminooxyacetyl residue.
abstract: In rat, BOC-NHO-1-14C-Ac-Trp-Met-Asp-Phe-NH2 (14C-I) is metabolised more slowly than BOC-1-14C-Gly-Trp-Met-Asp-Phe-NH2 (14C-II). Of the cytosol fractions of the rat organs the lung and pancreas exhibited a lower activity in the catabolism of BOC-NHOAc-Trp-Met-Asp-Phe-NH2 (I) than in that of BOC-Gly-Trp-Met-Asp-Phe-NH2 (II). In contrast, the cytosol fractions of the dog's lung, small intestine and pancreas hydrolysed I at a faster rate than they hydrolysed II.
mesh_terms: D000085:Acetates / Q000378:metabolism*; D000625:Aminooxyacetic Acid / Q000378:metabolism*; D000818:Animals; D002250:Carbon Radioisotopes; D004285:Dogs; D007421:Intestine, Small / Q000378:metabolism; D008099:Liver / Q000378:metabolism; D008297:Male; D010418:Pentagastrin / Q000031:analogs & derivatives* / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors; D014018:Tissue Distribution
chemical_list: D000085:Acetates; D002250:Carbon Radioisotopes; D000625:Aminooxyacetic Acid; C041024:tertiary-butyloxycarbonyl-glycyl-tryptophyl-methionyl-aspartyl-phenylalaninamide; C041023:tert-butyloxycarbonyl-aminooxyacetyl-tryptophyl-methionyl-aspartyl-phenylalaninamide; D010418:Pentagastrin