Nitrogenase from Klebsiella pneumoniae. An e.p.r. signal observed during enzyme turnover under ethylene is associated with the iron-molybdenum cofactor
- 1 May 1983
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 211 (2) , 495-497
- https://doi.org/10.1042/bj2110495
Abstract
During turnover at 10 degrees C at pH 7.4 in the presence of ethylene, the MoFe protein of Klebsiella pneumoniae nitrogenase (Kp 1) exhibited an electron-paramagnetic-resonance signal with g-values at 2.12, 1.998 and 1.987. 57Fe isotopic substitution demonstrated that this signal arose from the Kp 1 FeMo-cofactor in an S = 1/2 spin state.This publication has 13 references indexed in Scilit:
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