Multiple modes of catalysis-dependent inhibition and inactivation of aortic lysyl oxidase.
Multiple modes of catalysis-dependent inhibition and inactivation of aortic lysyl oxidase.
复制标题
主动脉赖氨酰氧化酶的多种催化依赖性抑制和失活模式。
DOI:
10.1016/0003-9861(83)90132-7
复制
发表时间:
1983
影响因子:
3.9
通讯作者:
Tang,SS
中科院分区:
文献类型:
--
作者:
Kagan,HM;Soucy,DM;Zoski,CG;Resnick,RJ;Tang,SS
Lysyl oxidase purified from bovine aorta can oxidize simple alkyl mono- and diamine substrates yielding the respective aldehyde, H2O2, and ammonia as products. The oxidation of such substrates is limited to approximately 100 catalytic turnovers per enzyme molecule since lysyl oxidase is syncatalytically and irreversibly inactivated in the course of oxidation of these amines. The present study reveals that addition of oxidant scavengers protects significantly against inactivation of lysyl oxidase and that the ammonia product is a reversible competitive inhibitor of amine oxidation. Further, the enzyme becomes covalently labeled by the amine substrate or its enzyme-processed derivative during catalysis. Thus, lysyl oxidase appears subject to multiple modes of catalysis-dependent inhibition or inactivation. Syncatalytic inactivation of lysyl oxidase might represent a means of restricting the activity of this enzyme toward its elastin and collagen substratesin vivo.
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影响因子:
2.9
作者:
R. Suva;R. Abeles
通讯作者:
R. Abeles
DOI:
10.1016/0304-4165(80)90354-2
发表时间:
1980-01-01
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
SAGONE, AL;DECKER, MA;DEMOCKO, C
通讯作者:
DEMOCKO, C
影响因子:
4.1
作者:
H. Kagan;K. Sullivan;T. Olsson;A. Cronlund
通讯作者:
A. Cronlund
DOI:
10.1016/s0006-291x(72)80203-1
发表时间:
1972-01
影响因子:
3.1
作者:
A. Narayanan;R. Siegel;G. Martin
通讯作者:
A. Narayanan;R. Siegel;G. Martin
影响因子:
2.9
作者:
Trackman,PC;Zoski,CG;Kagan,HM
通讯作者:
Kagan,HM