Identification of the Modified Structure of Arginine Residues in Proteins with 3-Deoxyglucosone, a Maillard Reaction Intermediate
作者:Fumitaka Hayase、Yutaka Konishi、Hiromichi Kato
DOI:10.1271/bbb.59.1407
日期:1995.1
The major compounds formed from the Nα-benzoylarginine amide (BzArgNH2) and 3-deoxyglucosone (3DG) reaction system were purified by reversed-phase HPLC. The major product was identified as R-4-imidazolone (I); R = 2-(4-benzoylamino-5-pentamide)amino-5-(2,3,4-trihydroxybutyl) as described in a previous paper (ref. 10). Intermediate products to the formation of compound I were identified as R-4(5H)-imidazolone (II), R-4(5-hydroxy)-imidazolone (III), and R-4-dihydroxyl-2-imidazoline (IV). Periodical changes in the amounts of compounds I, II, III, and IV suggest the formation of compound I via compound II by dehydration and oxidation from the BzArgNH2-3DG reaction system to be the major pathway, the formation of compound I via compound III being the other pathway.
通过反相高效液相色谱法纯化了 Nα-苯甲酰基精酰胺(BzArgNH2)和 3-脱氧葡萄糖酮(3DG)反应体系生成的主要化合物。主要产物被鉴定为 R-4-imidazolone (I);R = 2-(4-苯甲酰基氨基-5-戊酰胺)氨基-5-(2,3,4-三羟基丁基),如前一篇论文(参考文献 10)所述。化合物 I 形成的中间产物被鉴定为 R-4(5H)-咪唑啉酮 (II)、R-4(5-羟基)-咪唑啉酮 (III) 和 R-4-二羟基-2-咪唑啉 (IV)。化合物 I、II、III 和 IV 数量的周期性变化表明,BzArgNH2-3DG 反应体系脱水和氧化作用通过化合物 II 形成化合物 I 是主要途径,通过化合物 III 形成化合物 I 是另一条途径。