Kinetic mechanism of the reaction catalyzed by nuclear histone acetyltransferase from calf thymus.
Kinetic mechanism of the reaction catalyzed by nuclear histone acetyltransferase from calf thymus.
复制标题
小牛胸腺核组蛋白乙酰转移酶催化反应的动力学机制。
DOI:
10.1021/bi00289a004
复制
发表时间:
1983
期刊:
影响因子:
2.9
通讯作者:
S. Wong
中科院分区:
文献类型:
--
作者:
L. Wong;S. Wong
The kinetic mechanism for calf thymus histone acetyltransferase A has been determined from the initial velocity studies. The kinetic patterns at low substrate concentrations suggest that the reaction proceeds via two half-reactions as in a ping-pong pathway with the formation of an acetyl-enzyme intermediate. Such acetyl-enzyme has been isolated and found to be chemically competent. In addition, product inhibition patterns by coenzyme A are consistent with a hybrid ping-pong mechanism. These findings indicate that the acetyltransferase A from calf thymus has two separate and independent binding sites, one for each of the two substrates. Consequently, the mechanism constructed for the acetyltransferase A catalyzed reaction may be described as a double-displacement, two-site ping-pong mechanism.
DOI:
--
发表时间:
1980
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Garcea,RL;Alberts,BM
通讯作者:
Alberts,BM
影响因子:
2.9
作者:
Chang,CH;Cha,S;Brockman,RW;BennettJr,LL
通讯作者:
BennettJr,LL
DOI:
--
发表时间:
1980
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Belikoff,E;Wong,LJ;Alberts,BM
通讯作者:
Alberts,BM