... aribose-orienting asparagine, a transition state-stabiliz-ing arginine, and triphosphate-binding arginine and lysines [79]. The guanine base-recognition residuesglutamic acid and cysteine in Cyg12 [79] and ... a single-span trans-membrane polypeptide, which contains a ligand-bind-ing extracellular domain (ECD), a transmembranedomain, and an intracellular domain (ICD) consistingof a protein kinase-like ... arerecovered intact in urine or the collecting fluid,whereas small linear peptides, such as angiotensins I and II, bradykinin, glucagon, and luteinizing hormone-releasing hormone, are hydrolyzed and...