title: ALTERED ANTIGENICITY OF PEPSINOGEN AND PEPSIN AS AN INDEX OF CONFORMATIONAL CHANGE: EFFECT OF UREA AND REDUCING AGENTS.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003168:Complement Fixation Tests; D004792:Enzyme Precursors; D005453:Fluorescence; D010434:Pepsin A; D020116:Pepsinogen A; D010435:Pepsinogens; D019163:Reducing Agents; D012106:Research; D014508:Urea
chemical_list: D004792:Enzyme Precursors; D010435:Pepsinogens; D019163:Reducing Agents; D014508:Urea; D020116:Pepsinogen A; D010434:Pepsin A
keywords: CHEMISTRY; COMPLEMENT FIXATION TESTS; ENZYME PRECURSORS; EXPERIMENTAL LAB STUDY; FLUORESCENCE; PEPSIN; UREA