Transient model of thermal deactivation of enzymes.
Transient model of thermal deactivation of enzymes.
复制标题
酶热失活的瞬态模型。
DOI:
10.1016/j.bbapap.2011.06.010
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Golovlev,Val
中科院分区:
文献类型:
--
作者:
Chen,NelsonG;Gregory,Kalvin;Sun,Ye;Golovlev,Val
The kinetics of enzyme deactivation provide useful insights on processes that determine the level of biological function of any enzyme. Photinus pyralis (firefly) luciferase is a convenient enzyme system for studying mechanisms and kinetics of enzyme deactivation, refolding, and denaturation caused by various external factors, physical or chemical by nature. In this report we present a study of luciferase deactivation caused by increased temperature (i.e., thermal deactivation). We found that deactivation occurs through a reversible intermediate state and can be described by a Transient model that includes active and reversibly inactive states. The model can be used as a general framework for analysis of complex, multiexponential transient kinetics that can be observed for some enzymes by reaction progression assays. In this study the Transient model has been used to develop an analytical model for studying a time course of luciferase deactivation. The model might be applicable toward enzymes in general and can be used to determine if the enzyme exposed to external factors, physical or chemical by nature, undergoes structural transformation consistent with thermal mechanisms of deactivation.
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影响因子:
3.4
作者:
M. Yousefi-Nejad;S. Hosseinkhani;K. Khajeh;B. Ranjbar
通讯作者:
M. Yousefi-Nejad;S. Hosseinkhani;K. Khajeh;B. Ranjbar
DOI:
10.1016/s1570-9639(03)00179-1
发表时间:
2003
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
T. Zako;Keiichi Ayabe;T. Aburatani;N. Kamiya;A. Kitayama;H. Ueda;Teruyuki Nagamune
通讯作者:
Teruyuki Nagamune
影响因子:
2.9
作者:
Sun, Ye;Jacobson, K. Bruce;Golovlev, Val
通讯作者:
Golovlev, Val
影响因子:
6
作者:
L. Brovko
通讯作者:
L. Brovko
影响因子:
3.9
作者:
Daniel, R. M.;Danson, M. J.;Peterson, M. E.
通讯作者:
Peterson, M. E.