SOD-LIKE ACTIVITY STUDIES OF CYTOKININ-COPPER(II) COMPLEXES

被引：10

作者：

GOLDSTEIN, S

CZAPSKI, G

机构：

[1] Department of Physical Chemistry, The Hebrew University of Jerusalem

来源：

FREE RADICAL RESEARCH COMMUNICATIONS | 1991年 / 12-3卷

关键词：

O-2+; SOD; SOD-MIMIC; CU(II)-COMPLEXES; DISMUTATION; PULSE RADIOLYSIS;

D O I：

10.3109/10715769109145783

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：

Using the pulse radiolysis technique it was shown that copper(II) complexes of kinetin and 6-benzylaminopurine (6-BAP) catalyze O-2 dismutation very efficiently at physiological pH. The 'turnover' rate constants at pH 7 were determined to be (1.5 ± 0.3) × 109 and (2.2 ± 0.4) × 109 M-1 s-1for 6-BAP and kinetin, respectively. The system was studied at pH 3-10 in the case of 6-BAP, and the results show that this complex catalyzes also HO2 dismutation efficiently. © 1991 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.

引用

页码：173 / 177

页数：5

共 10 条

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