INTRA-MOLECULAR ELECTRON-TRANSFER AND BINDING CONSTANTS IN IRON HEXACYANIDE-CYTOCHROME-C COMPLEXES AS STUDIED BY PULSE-RADIOLYSIS

被引：13

作者：

ILAN, Y

SHAFFERMAN, A

机构：

[1] HEBREW UNIV JERUSALEM,DEPT PHYS CHEM,JERUSALEM 91000,ISRAEL

[2] ISRAEL INST BIOL RES,NESS ZIONA,ISRAEL

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1979年 / 548卷 / 01期

关键词：

Cytochrome c; Electron transfer; Iron hexacyanide; Pulse radiolysis;

D O I：

10.1016/0005-2728(79)90197-X

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Internal oxidation and reduction rates of horse cytochrome c in the complexes CII · Fe(III) (CN)3-6 and CIII · Fe(II) (CN)4-6, are 4.6 · 104s-1 and 3.3 · 102s-1, respectively. The binding site of the iron hexacyanide ions on either CII or CIII are kinetically almost indistinguishable; binding constants range from 0.87 · 103 to 2 · 103M-1. The present pulse radiolytic kinetic data is compared with that from NMR, T-jump and equilibrium dialysis studies. © 1979.

引用

页码：161 / 165

页数：5

共 20 条

[1]

BRANDT KG, 1966, J BIOL CHEM, V241, P4185

[2] KINETICS OF OXIDATION OF REDUCED CYTOCHROME-C BY FERRICYANIDE DERIVATIVES [J].