Magnetic circular dichroism studies of myoglobin complexes. Correlations with heme spin state and axial ligation.
Magnetic circular dichroism studies of myoglobin complexes. Correlations with heme spin state and axial ligation.
复制标题
肌红蛋白复合物的磁圆二色性研究。
DOI：
10.1021/ja00418a005
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发表时间：
1976
影响因子：
15
通讯作者：
K. Sauer
中科院分区：
文献类型：
--
作者：
L. Vickery;T. Nozawa;K. Sauer
摘要：本文报道了氧化和还原肌红蛋白复合物在22°至-196°C范围内300-650 nm的磁圆二色性（MCD）光谱。对于所有顺磁衍生物，血红素铁原子对MCD的影响反映在光谱中存在法拉第f项。对于所研究的铁肌红蛋白衍生物（氰化物、咪唑、叠氮化物、氢氧化物、水化物和氟化物），发现与近紫外Soret波段相关的MCD强度与存在的低自旋成分的数量相关。吸收的一部分是A
-2-Abstract: Magnetic circular dichroism (MCD} spectra are reported for oxidized and reduced myoglobin complexes for the spectral region 300-650 nm from 22° to -196°C. For all paramagnetic derivatives, the effect of the heme iron atom on the MCD is reflected in the presence of Faraday f terms in the spectra. For the ferrimyoglobin derivatives investigated (cyanide, imidazole, azide, hydroxide, aquo and fluoride) the MCD intensity associated with the near UV Soret band was found to be correlated with the amount of low spin component present. of the absorrtion is of A the