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Titolo:
TRANSFER OF AMINOPEPTIDASE ACTIVITY FROM PROSTASOMES TO SPERM
Autore:
ARIENTI G; CARLINI E; VERDACCHI R; PALMERINI CA;
Indirizzi:
IST BIOCHIM & CHIM MED,VIA GIOCHETTO I-06126 PERUGIA ITALY DIPARTIMENTO BIOL CELLULARE & MOL I-06126 PERUGIA ITALY
Titolo Testata:
Biochimica et biophysica acta (G). General subjects
fascicolo: 2, volume: 1336, anno: 1997,
pagine: 269 - 274
SICI:
0304-4165(1997)1336:2<269:TOAAFP>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN SEMINAL PLASMA; HUMAN-SEMEN; ORGANELLES; MEMBRANES; MECHANISMS; BINDING; CELLS;
Keywords:
AMINOPEPTIDASE; PROSTASOME; SPERM; MEMBRANE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
G. Arienti et al., "TRANSFER OF AMINOPEPTIDASE ACTIVITY FROM PROSTASOMES TO SPERM", Biochimica et biophysica acta (G). General subjects, 1336(2), 1997, pp. 269-274

Abstract

Prostasomes are membranous vesicles (150-200 nm diameter) present in human semen. They are secreted by the prostate and contain large amounts of cholesterol, sphingomyelin and Ca2+. In addition, some of their proteins are enzymes. Prostasomes enhance the motility of ejaculated spermatozoa and are involved in a number of additional biological functions. It has been demonstrated that lipid can be transferred from prostasomes to sperm by a fusion process occurring at slightly acidic pH. In this paper, we show that an aminopeptidase activity is transferred from prostasome to sperm. This may be of particular interest since it indicates the involvement of protein in the process of fusion and because sperm may acquire new membrane-bound proteins by this procedure. (C) 1997 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 12:37:56