Mechanism of suppression in Drosophila. III. Phenol oxidase activity and the speck locus

Biochem Genet. 1975 Jun;13(5-6):353-6. doi: 10.1007/BF00485820.


A marked decrease in the amount of the A2 component of phenol oxidase occurs in the speck locus of Drosophila melanogaster. The amount of A2 in speck is restored to a normal amount in the presence of the suppressor mutant, su(s)2.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Drosophila melanogaster / enzymology*
  • Genotype
  • Male
  • Mutation
  • Oxidoreductases / biosynthesis*
  • Phenols
  • Phenotype
  • Pupa / enzymology
  • Suppression, Genetic*


  • Phenols
  • Oxidoreductases