Bencini A, Bertini I, Canti G, Gatteschi D, Luchinat C. The epr spectra of the inhibitor derivatives of cobalt carbonic anhydrase.
J Inorg Biochem 1981;
14:81-93. [PMID:
6260899 DOI:
10.1016/s0162-0134(00)80016-1]
[Citation(s) in RCA: 46] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The epr spectra at 4.2 K of inhibitor derivatives of cobalt carbonic anhydrase have been recorded. The spectra can be grouped into two 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 two kinds of spectra have been empirically related to the features of the room-temperature solution electronic spectra. A third 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.
Collapse