|Citation||Johnson, D.H., Friedman, T.B. (1983). Purine-resistant Drosophila melanogaster result from mutations in the adenine phosphoribosyltransferase structural gene. Proc. Natl. Acad. Sci. U.S.A. 80(): 2990--2994. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||Mutants of Drosophila melanogaster selected for resistance to purine killing are deficient in adenine phosphoribosyltransferase (APRT; E.C. 22.214.171.124) activity. Genetic mapping and complementation analysis demonstrate that purine resistance, deficiency of APRT activity, and differences in the isoelectric point of APRT result from alterations at a single locus, Aprt (map position, 3:3.03). The level of APRT activity shows gene dose dependence in Aprt heterozygotes and in flies that are haploid for different Aprt alleles. Drosophila APRT is a dimer composed of apparently identical 23,000-dalton subunits. These results suggest that Aprt contains the structural gene for APRT.|
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|Language of Publication||English|
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|Abbreviation||Proc. Natl. Acad. Sci. U.S.A.|
|Title||Proceedings of the National Academy of Sciences of the United States of America|
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