THE ELECTRON-PARAMAGNETIC-RES OF THE INHIBITOR DERIVATIVES OF COBALT CARBONIC-ANHYDRASE
THE ELECTRON-PARAMAGNETIC-RES OF THE INHIBITOR DERIVATIVES OF COBALT CARBONIC-ANHYDRASE
复制标题
DOI：
10.1016/s0162-0134(00)80016-1
复制
发表时间：
1981-01-01
影响因子：
3.9
通讯作者：
LUCHINAT, C
中科院分区：
文献类型：
--
作者：
BENCINI, A;BERTINI, I;LUCHINAT, C
记录了[牛红细胞]钴碳酸酐酶抑制剂衍生物在4.2 K时的EPR谱。根据低场信号是宽的还是尖的，可以将谱分为两类，g范围分别为6.1-6.8、2.3-2.9、1.6-1.8和5.8-6.2、2.2-2.8、1.5-1.8。这两种光谱与室温溶液电子光谱的特征有经验联系。当抑制剂大量过量时，获得具有单一宽信号的第三类EPR谱。讨论了利用EPR谱推断钴酶几何构型的可能性。
The EPR spectra at 4.2 K of inhibitor derivatives of [bovine erythrocytes] cobalt carbonic anhydrase were recorded. The spectra can be grouped into 2 classes according to whether the low-field signal is broad or sharp and with g ranges of 6.1-6.8, 2.3-2.9, 1.6-1.8 and 5.8-6.2, 2.2-2.8, 1.5-1.8, respectively. The 2 kinds of spectra have been empirically related to the features of the room-temperature solution electronic spectra. A 3rd kind of EPR spectrum with a single broad signal is obtained when the inhibitor is in large excess. The possibility of using the EPR spectra for deducing the geometry of cobalt enzymes is discussed.