Oxygen reactions of the copper oxidases.
Oxygen reactions of the copper oxidases.
复制标题
铜氧化酶的氧反应。
DOI:
10.1042/bse0340155
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Whittaker,JW
中科院分区:
文献类型:
--
作者:
Whittaker,JW
The emergence of oxygenic photosynthesis over 2.5 billion years ago led to dramatic changes in the chemistry of our planet with the introduction of a simple molecule (O2) into the atmosphere. As a consequence of this single biological innovation, the oceans rusted, producing vast iron formations on the sea margins, and all of life was forced to adapt to a new oxidizing environment [1]. In time, molecular oxygen has become one of the central molecules of biochemistry, defining ecological boundaries, driving the energetics of respiration and participating as an oxidant in a variety of metabolic reactions, fundamentally altering the course of life in the process. The apparent simplicity of the dioxygen molecule is deceptive, and many of its reactions are, in fact, extraordinarily complex. However, an underlying theme of oxidation–reduction chemistry can be recognized in the biochemistry of O2. Addition of electrons (reduction) serves to activate molecular oxygen in oxygenation reactions where oxygen atoms are inserted into a molecular framework, and the unusually high affinity of O2 for electrons allows oxygen to serve as a terminal electron acceptor in aerobic metabolism. In other reactions, the partial reduction of O2 (by copper oxidases, for example; see below) provides a biological source of hydrogen peroxide, a versatile oxidant involved in a variety of cellular processes, including intercellular signalling and pathogenesis. The redox chemistry of oxygen is clearly the key to understanding these many and varied roles of O2 in biochemistry.
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影响因子:
2.9
作者:
R. Matsuzaki;Shinnichiro Suzuki;K. Yamaguchi;Toshio Fukui;K. Tanizawa
通讯作者:
K. Tanizawa
DOI:
--
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Turowski,PN;McGuirl,MA;Dooley,DM
通讯作者:
Dooley,DM
DOI:
10.1074/jbc.271.37.22598
发表时间:
1996
期刊:
The Journal of Biological Chemistry
影响因子:
--
作者:
Yoon;R. Matsuzaki;Shinnichiro Suzuki;K. Tanizawa
通讯作者:
K. Tanizawa
影响因子:
5.7
作者:
Kumar, V;Dooley, DM;Zubak, VM
通讯作者:
Zubak, VM
影响因子:
2.9
作者:
JANES, SM;PALCIC, MM;KLINMAN, JP
通讯作者:
KLINMAN, JP