Abstract

The arylphorins and LSP-2 like polypeptide were detected by immunoblotting analysis during development in the integument of C. capitata. In vitro translation of total RNA from fat body and integument during pupariation, clearly revealed that the polypeptides under consideration were exclusively synthesized in the fat body. Furthermore, in vitro experiments demonstrated that radiolabeled arylphorins and LSP-2 like polypeptide were taken up by the integument, in an undegraded state. Immunofluorescence experiments in cross sections of wandering stage larvae and white pupae revealed that the LSP-2 like polypeptide was mainly localized in the epidermal cells, and a very weak signal was also given by the cuticle. Furthermore, the presented results indicated that a small portion of the extracted proteins exist in high molecular weight aggregate(s).

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