Meunier B, et al. (1995) The topology of CuA in relation to the other metal centres in cytochrome-c oxidase of Saccharomyces cerevisiae as determined by analysis of second-site reversions. Biochim Biophys Acta 1253(1):13-5
Abstract: Second-site revertants were selected from a respiratory-deficient mutant carrying the mutation D369N located in a loop between helices IX and X close to H376 and H378, the proposed ligands of haem a3 and haem a, respectively. A reversion was observed in subunit II, in the vicinity of the CuA ligands. This same reversion compensates the subunit I deficiency mutation, S140L, assumed to be near H62, the second putative histidine ligand to haem a. These data enable us to propose a three-dimensional topology in which CuA in subunit II is located on top of the Positive-side of subunit I and in proximity to all three of its metal centres.
|Status: Published||Type: Journal Article | Research Support, Non-U.S. Gov't||PubMed ID: 7492593|
Topics addressed in this paper
Number of different genes curated to this paper: 2
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