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Regulation of Drosophila myosin ATPase activity by phosphorylation of myosin light chains—II. Flightless fly
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Description
1. The Ca2(+)-activated and Mg2+ actin-activated myosin ATPase activities of flightless mfd- mutant Drosophila flight muscle myosin were one-half and one-third of those of the wild-type fly muscle myosin, respectively. 2. In the two-dimensional gel electrophoresis, the spots corresponding to phosphorylated myosin light chains, Lfl and Ltl, were hardly detected in mfd- mutant myosin. 3. These results support not only the conclusion that phosphorylation of myosin light chains regulates Drosophila myosin ATPase activity but also the assumption that the phosphorylation of myosin light chains is directly involved in flight function of the Drosophila fly.
Journal
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- Comparative Biochemistry and Physiology Part B: Comparative Biochemistry
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Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 95 183-185, 1990-01-01
Elsevier BV
