On the mechanism of the decomposition of hydrogen peroxide by catalase

On the mechanism of the decomposition of hydrogen peroxide by catalase

In a previous paper (Keilin and Hartree 1936) it was shown that catalase combines reversibly not only with KCN and H2S as was shown by Zeile and Hellstrom (1930) or with C2H5OOH (Stern 1936) but also with NaN3, NH2OH, N2H4, NaF and NO, giving corresponding spectroscopically well defined compounds. I...

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Veröffentlicht in:Proceedings of the Royal Society of London. Series B, Biological sciences Biological sciences, 1938-01, Vol.124 (837), p.397-405
Hauptverfasser: Keilin, David, Hartree, E. F.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectra
Azides
Enzymes
Flasks
Hydrogen
Iron
Oxygen
Peroxides
Phosphates
Sodium
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Zusammenfassung:In a previous paper (Keilin and Hartree 1936) it was shown that catalase combines reversibly not only with KCN and H2S as was shown by Zeile and Hellstrom (1930) or with C2H5OOH (Stern 1936) but also with NaN3, NH2OH, N2H4, NaF and NO, giving corresponding spectroscopically well defined compounds. In this respect and in the general pattern of the absorption spectrum, catalase shows a striking resemblance to acid methaemoglobin. It differs, however, from the latter in three important properties, namely:
ISSN:0080-4649
2053-9193
2053-9193
DOI:10.1098/rspb.1938.0001