Agricultural and Biological Chemistry
Online ISSN : 1881-1280
Print ISSN : 0002-1369
ISSN-L : 0002-1369
Studies on Tyrosinase in Housefly
Part I. Protyrosinase in the Pupae of Housefly and Its Activation
Masaru FUNATSUTakashi INABA
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1962 Volume 26 Issue 8 Pages 535-540

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Abstract

Occurrence of protyrosinase in the prepupae of housefly, Musca vicina MAQUART, and its activation were described. The prepupae possessing no appreciable tyrosinase activity could be separated from the other aged pupae by putting them into water. Homogenate prepared from the prepupae contains protyrosinase and has no activation system for the proenzyme. As has been reported by Ohnishi a certain activator occurred naturally in the aged pupae apparently activates the protyrosinase in vitro. However, contrary to Ohnishi'sresults it was found that this protyrosinase can be activated by the treatment with sodium dodecyl sulfate in vitro.

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