Pupal and larval cuticle proteins of Drosophila ... - ACS Publications

Pupal and Larval Cuticle Proteins of Drosophila melanogaster1. Donald J. Silvert,* John Doctor,8 Luis Quesada,11 and James W. Fristrom* abstract: Prot...
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Biochemistry 1984, 23, 5767-5774

5767

Pupal and Larval Cuticle Proteins of Drosophila melanogaster? Donald J. Silvert,* John Doctor,g Luis Quesada,” and James W. Fristrom*

ABSTRACT:

Proteins, soluble in 7 M urea, were extracted from third-instar larval and pupal cuticles of Drosophila melanogaster. Both extracts contain a limited number of polypeptides resolved by one- or two-dimensional electrophoresis. The five major larval proteins have low molecular weights (