COMPLEXES OF VITAMIN-B6 .5. INTERACTION OF PYRIDOXAL WITH PYRIDOXAMINE IN THE PRESENCE OF COPPER(II)

被引：8

作者：

ELEZABY, MS

ELSHATTI, N

机构：

[1] Chemistry Department, Kuwait University

来源：

JOURNAL OF INORGANIC BIOCHEMISTRY | 1979年 / 10卷 / 02期

关键词：

D O I：

10.1016/S0162-0134(00)81016-8

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The interaction of pyridoxal (PL) with pyridoxamine (PM) in the presence or absence of CU(II) has been studied in acidic aqueous solutions. We conclude that a ternary complex is formed prior to the interaction of pyridoxal with pyridoxamine in the presence of Cu(II) ions. Although the rate of interaction of excess PL with the Cu(II)-PM system of composition 1:1 followed pseudo-first-order kinetics, this was not so with composition ratios of PM to Cu(II), greater than unity. The observed rate constant (kobs) has the following form for Cu(II):PM:PL in the ratio 1:1:10 (or more): {A figure is presented}. © 1979.

引用

页码：169 / 177

页数：9

共 15 条

[1] PYRIDOXINE AND PYRIDOXAL ANALOGS .13. A NUCLEAR MAGNETIC RESONANCE STUDY OF CONDENSATION OF POLYFUNCTIONAL AMINO ACIDS WITH PYRIDOXAL [J].