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Properties of Phenoloxidase in Mycobacterium leprae

Abstract

Mycobacterium leprae separated from infected human tissues, oxidizes 3,4-dihydroxyphenylalanine (dopa) and a few other phenolic compounds1–3. This property is not shown by several other mycobacteria1,2,4. Phenoloxidase occurs in vertebrate melanocytes and is widely distributed in the plant kingdom5. (E.C. 1.10.3.1, o-diphenol: oxygen oxidoreductase). For a large number of substrates the phenoloxidase of the leprosy bacilli is similar to the enzyme from plant sources, and distinct from mammalian phenolase, which has a limited substrate specificity6. When the reaction products were compared, another distinguishing feature of the M. leprae enzyme became evident and this is reported here.

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References

  1. Prabhakaran, K., Intern. J. Leprosy, 35, 42 (1967).

    CAS  Google Scholar 

  2. Prabhakaran, K., and Kirchheimer, W. F., J. Bact., 92, 1267 (1966).

    CAS  Google Scholar 

  3. Prabhakaran, K., Nature, 215, 436 (1967).

    Article  CAS  ADS  Google Scholar 

  4. Kirchheimer, W. F., and Prabhakaran, K., Intern. J. Leprosy, 36 (2) (1968).

  5. Mason, H. S., Adv. Enzymol., 16, 105 (1955).

    CAS  Google Scholar 

  6. Brown, F. C., Ward, D. N., and Griffin, A. C., in Pigment Cell Biology (edit. by Gordon, M.), 525 (Academic Press, New York, 1959).

    Book  Google Scholar 

  7. Prabhakaran, K., Kirchheimer, W. F., and Harris, E. B., J. Bact. (in the press).

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PRABHAKARAN, K. Properties of Phenoloxidase in Mycobacterium leprae. Nature 218, 973–974 (1968). https://doi.org/10.1038/218973a0

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