EXPRESSION OF THE MAJOR TYROSYL PHOSPHOPROTEIN OF 54-KDA IN THE INTEGUMENT OF THE MEDFLY CERATITIS-CAPITATA

被引:0
|
作者
ZERVAS, CG [1 ]
KATSORIS, PG [1 ]
MARMARAS, VJ [1 ]
机构
[1] UNIV PATRAS,DEPT BIOL,PATRAI,GREECE
来源
ROUXS ARCHIVES OF DEVELOPMENTAL BIOLOGY | 1994年 / 204卷 / 01期
关键词
PHOSPHOTYROSYL PROTEINS; PHOSPHATASE ACTIVITY; LARVAL DEVELOPMENT; CUTICLE; INSECTS;
D O I
10.1007/BF00744870
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Expression of a 54 kDa tyrosyl phosphorylated protein in epidermal cells during the third instar larval stage was followed. It was demonstrated that the 54 kDa protein moiety and its phosphorylated counterpart follow the same developmental profile. The system seems to be regulated only at the onset of the second moult, by an initial signal which regulates both the synthesis and phosphorylation of a 54 kDa protein. The continuous presence this protein in epidermal cells during the third instar stage, as well as during apolysis and histolysis, suggests that it might participate in cell activities taking place during this developmental period. However, the 54 kDa protein could no be involved in specific epidermal cell activities such as histolysis, melanization and sclerotization, since these activities occur only at specific times during the third instar stage.
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页码:30 / 35
页数:6
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