PULSE RADIOLYSIS OF RABBIT LIVER METALLOTHIONEIN IN AQUEOUS SOLUTION

被引:0
|
作者
Fang Xingwang [1 ]
Li Fengmei [2 ]
Wu Jilan [1 ]
Di Shaojie [2 ]
Wei Genshuan [1 ]
Ru Bingen [3 ]
机构
[1] Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China
[2] Beijing Normal Univ, Inst Low Energy, Beijing 100875, Peoples R China
[3] Peking Univ, Life Sci Ctr, Beijing 100871, Peoples R China
关键词
Metallothionein; Pulse radiolysis; Radiolysis mechanism;
D O I
10.3866/PKU.WHXB19930525
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Metallothioneine (MTs) are widely occuring proteins characterized by a low molecular weight (6500-6800) and an extremely high metal and sulfur content. The mechanism of pulse radiolysis of rabbit liver MT-I in aqueous solution was studied. After pulse radiolysis, two peaks occured with maximum absorption at 450nm and 280nm. It was supposed that the first peak was due to RSSR- radical formed by the combination of RS- anion. The observed kinetic constants of growth and decay of RSSR- radical were estimated from the absorption spectra.
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页码:702 / 705
页数:4
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