✦ LIBER ✦
Regulation of amylase activity inDrosophila melanogaster:Variation in the number of enzyme molecules produced by different amylase genotypes
✍ Scribed by D. A. Hickey
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 640 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0006-2928
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✦ Synopsis
Purified amylases from high- and low-activity variants of Drosophila melanogaster showed identical specific activities. Immunoelectrophoresis of crude larval homogenates showed severalfold differences between strains in the amounts of cross-reacting material. Control of amylase activity is "trans"-acting in heterozygotes between high- and low-activity variants. These results suggest the existence of polymorphic regulatory genes affecting the production levels of amylase protein in D. melanogaster.