钴（II）取代的黄瓜碱性蓝色蛋白“植物蓝蛋白”的制备及光谱研究。

Preparation and spectroscopic studies of cobalt(II)-substituted cucumber basic blue protein "plantacyanin".

作者信息

Sakurai T

出版信息

Biochem Biophys Res Commun. 1986 Sep 30;139(3):961-6. doi: 10.1016/s0006-291x(86)80271-6.

Abstract

The cobalt(II) derivative of cucumber basic blue copper protein "plantacyanin" has been prepared. The visible absorption, circular dichroic and magnetic circular dichroic spectra of Co(II)-plantacyanin are similar to those of Co(II)-plastocyanin, indicating that the stereochemistry of Co(II) is tetrahedral and at least one cysteinyl ligand around Co(II) ion is responsible for the strong charge transfer bands at 331 and ca. 390 nm.

摘要

黄瓜碱性蓝铜蛋白“植物蓝蛋白”的钴（II）衍生物已制备成功。钴（II）-植物蓝蛋白的可见吸收光谱、圆二色光谱和磁圆二色光谱与钴（II）-质体蓝素的相似，这表明钴（II）的立体化学结构为四面体，且钴（II）离子周围至少有一个半胱氨酰配体对331nm和约390nm处的强电荷转移带负责。