Studies on substrate specificity of X-prolyl dipeptidyl-aminopeptidase during new chromogenic substrates, X-Y-p-nitroanilides. 1978

T Kato, and T Nagatsu, and T Kimura, and S Sakakibara

Substrate specificity of X-prolyl dipeptidyl-aminopeptidase (dipeptidyl aminopeptidase IV) was examined by using newly synthesized 8 chromogenic substrates, X-Y-p-nitroanilides. Homogeneous enzyme from human submaxillary gland hydrolyzed glycylproline p-nitroanilide almost specifically, except alanylalanine p-nitroanilide which had 11% activity.

UI MeSH Term Description Entries
D009574 Nitro Compounds Compounds having the nitro group, -NO2, attached to carbon. When attached to nitrogen they are nitramines and attached to oxygen they are NITRATES. Nitrated Compounds
D010450 Endopeptidases A subclass of PEPTIDE HYDROLASES that catalyze the internal cleavage of PEPTIDES or PROTEINS. Endopeptidase,Peptide Peptidohydrolases
D004151 Dipeptides Peptides composed of two amino acid units. Dipeptide
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000813 Anilides Any aromatic amide obtained by acylation of aniline.
D013363 Submandibular Gland One of two salivary glands in the neck, located in the space bound by the two bellies of the digastric muscle and the angle of the mandible. It discharges through the submandibular duct. The secretory units are predominantly serous although a few mucous alveoli, some with serous demilunes, occur. (Stedman, 25th ed) Submaxillary Gland,Gland, Submandibular,Gland, Submaxillary,Glands, Submandibular,Glands, Submaxillary,Submandibular Glands,Submaxillary Glands
D013379 Substrate Specificity A characteristic feature of enzyme activity in relation to the kind of substrate on which the enzyme or catalytic molecule reacts. Specificities, Substrate,Specificity, Substrate,Substrate Specificities

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