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Titolo:
Procathepsin and acid phosphatase are stored in Musca domestica yolk spheres
Autore:
Ribolla, PEM; Bijovsky, AT; de Bianchi, AG;
Indirizzi:
Univ Sao Paulo, Inst Ciencias Biomed, Dept Parasitol, BR-05508900 Sao Paulo, Brazil Univ Sao Paulo Sao Paulo Brazil BR-05508900 BC05508900 Sao Paulo, Brazil Univ Sao Paulo, Inst Quim, Dept Bioquim, BR-05508900 Sao Paulo, Brazil Univ Sao Paulo Sao Paulo Brazil BR-05508900 BC05508900 Sao Paulo, Brazil
Titolo Testata:
JOURNAL OF INSECT PHYSIOLOGY
fascicolo: 3, volume: 47, anno: 2001,
pagine: 225 - 232
SICI:
0022-1910(200103)47:3<225:PAAPAS>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATHEPSIN-B; DROSOPHILA-MELANOGASTER; TICK EGGS; RHODNIUS-PROLIXUS; JUVENILE-HORMONE; MOSQUITO OOCYTES; FAT-BODY; DEGRADATION; PROTEIN; VITELLOGENIN;
Keywords:
cathepsin; acid phosphatase; yolk proteins; oocytes; Musca domestica; immunocytochemistry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Ribolla, PEM Univ Sao Paulo, Inst Ciencias Biomed, Dept Parasitol, BR-05508900 Sao Paulo, Brazil Univ Sao Paulo Sao Paulo Brazil BR-05508900 BCPaulo, Brazil
Citazione:
P.E.M. Ribolla et al., "Procathepsin and acid phosphatase are stored in Musca domestica yolk spheres", J INSECT PH, 47(3), 2001, pp. 225-232

Abstract

Yolk spheres present in mature invertebrate oocytes are composed of yolk proteins and proteolytic enzymes. In the fly Musca domestica, yolk proteins are degraded during embryogenesis by a cathepsin-like proteinase: that is stored as a zymogen. An acid phosphatase is also active in the yolk spheres during Musca embryogenesis. In this paper we show that procathepsin and acid phosphatase are initially stored by a different pathway from the one followed by yolk protein precursors. Both enzymes are taken up by the oocytes and transitorily stored into small vesicles (lysosomes) surrounding the early yolk spheres. Fusion of both structures. the early yolk spheres and lysosomes, creates the mature yolk spheres. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 16:41:16