Relationship between oxygen affinity and autoxidation of myoglobin.
Relationship between oxygen affinity and autoxidation of myoglobin.
复制标题
氧亲和力与肌红蛋白自动氧化之间的关系。
DOI:
--
复制
发表时间:
2012
影响因子:
4.6
通讯作者:
Yasuhiko Yamamoto
中科院分区:
文献类型:
--
作者:
Tomokazu Shibata;Daichi Matsumoto;Ryu Nishimura;H. Tai;A. Matsuoka;S. Nagao;T. Matsuo;S. Hirota;K. Imai;S. Neya;A. Suzuki;Yasuhiko Yamamoto
Studies using myoglobins reconstituted with a variety of chemically modified heme cofactors revealed that the oxygen affinity and autoxidation reaction rate of the proteins are highly correlated to each other, both decreasing with decreasing the electron density of the heme iron atom. An Fe(3+)-O(2)(-)-like species has been expected for the Fe(2+)-O(2) bond in the protein, and the electron density of the heme iron atom influences the resonance process between the two forms. A shift of the resonance toward the Fe(2+)-O(2) form results in lowering of the O(2) affinity due to an increase in the O(2) dissociation rate. On the other hand, a shift of the resonance toward the Fe(3+)-O(2)(-)-like species results in acceleration of the autoxidation through increasing H(+) affinity of the bound ligand.
DOI:
--
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
BrantleyJr,RE;Smerdon,SJ;Wilkinson,AJ;Singleton,EW;Olson,JS
通讯作者:
Olson,JS
影响因子:
2.9
作者:
Pande,U;LaMar,GN;Lecomte,JT;Ascoli,F;Brunori,M;Smith,KM;Pandey,RK;Parish,DW;Thanabal,V
通讯作者:
Thanabal,V
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Carver,TE;BrantleyJr,RE;Singleton,EW;Arduini,RM;Quillin,ML;PhillipsJr,GN;Olson,JS
通讯作者:
Olson,JS