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Electron capture at the iron-oxygen centre in single crystals of oxymyoglobin studied by electron spin resonance spectroscopy.

作者信息

Symons M C, Petersen R L

出版信息

Biochim Biophys Acta. 1978 Aug 21;535(2):241-6. doi: 10.1016/0005-2795(78)90090-9.

DOI:10.1016/0005-2795(78)90090-9
PMID:209824
Abstract

Exposure of single crystals of oxy-myoglobin to 60Co gamma-rays at 77 K results in electron addition to the Fe-O2 units. The resulting ESR spectrum has been analysed to give the principal values and directions for the g-tensor of this unit. The results suggest that the dioxygen ligand is strongly tilted, the direction of tilt being close to one of the bisectors of the N-Fe-N bond angles. Possible reasons for this orientation are discussed.

摘要

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