当前位置： SCI文献检索 > JOURNAL OF STRUCTURAL BIOLOGY期刊下所有文献 > The formation of the functional chorion structure of Drosophila virilis involves inercalation of the "middle" and "late" major chorion proteins: a general model for chorion assembly in Drosophilidae.

The formation of the functional chorion structure of Drosophila virilis involves inercalation of the "middle" and "late" major chorion proteins: a general model for chorion assembly in Drosophilidae.

Abstract：

:We have shown by in vitro development of staged follicles in the presence of tritiated proline, as well as by immunoblot analysis, that the Dvs19 and DVS15 chorion proteins of Drosophila virilis are synthesized by the follicular epithelium and are incorporated in the chorion at the terminal stages of choriogenesis. Light microscopy immunolocalization has revealed that these two proteins represent structural components of the endochorion in all the specialized regions of the eggshell, while, contrary to their temporal pattern of secretion, electron microscopic immunolocalization has shown that these two proteins participate in endochorionic structures formed before the onset of their synthesis, thus suggesting an intercalation process during chorion formation. Furthermore, double immunolocalizations demonstrated that cosecreted proteins do not coexist in all secretory vesicles of the follicle cells, indicating that probably the final association of these chorionic components occurs extracellularly. On the basis of these data and those presented in the accompanying paper [Trougakos, I.P., and Margaritis, L.H. (1998) Immunolocalization of the temporally "early" secreted major structural chorion proteins, Dvs38 and Dvs36, in the eggshell layers and regions of Drosophila virilis, J. Struct. Biol. 123, 000-000.], a model for chorion assembly in Drosophilidae is proposed.

journal_name

J Struct Biol

journal_title

Journal of structural biology

authors

Trougakos IP,Margaritis LH

doi

10.1006/jsbi.1998.4999

subject

Has Abstract

pub_date

1998-10-01 00:00:00

pages

97-110

issue

2

eissn

1047-8477

issn

1095-8657

pii

S1047-8477(98)94999-1

journal_volume

123

pub_type

杂志文章

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