Abstract
IT has been shown previously1 that some of the bands of the absorption spectrum, described by Warburg and his co-workers2,3, in Acetobacter (Bacterium pasteurianum) and ascribed by them to the oxidase or oxygen transporting enzyme do not belong to this enzyme but to cytochrome. It was also shown that similar absorption bands are visible not only in organisms with a very active oxidation, such as Acetobacter or Azotobacter, but also in organisms having a much lower respiratory activity, such as brewers' yeast Bacillus proteus, B. coli, and B. dysenteriœ.
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References
Keilin, D., NATURE, 132, 783, Nov. 18, 1933.
Warburg, O. and Negelein, E., BiocH. Z., 262, 237 ; 1933.
Warburg, O., Negelein, E. and Haas, E. ibid., 266, 1 ; 1933.
Negelein, E. and Gerischer, W., Naturwiss., 21, 884 ; 1933.
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KEILIN, D. Cytochrome and the Supposed Direct Spectfoscopic Observation of Oxidase. Nature 133, 290–291 (1934). https://doi.org/10.1038/133290c0
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DOI: https://doi.org/10.1038/133290c0
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