Sea urchin sperm cation-selective channels directly modulated by cAMP

Sánchez D.; Labarca P.; Darszon, A

Abstract

Components of the sea urchin outer egg jelly layer such as speract drastically change second messenger levels and membrane permeability in sperm. Ion channels are deeply involved in the sperm-egg dialogue in sea urchin and other species. Yet, due to the small size of sperm, studies of ion channels and their modulation by second messengers in sperm are scarce. In this report we offer the first direct evidence that cation-selective channels upwardly regulated by cAMP operate in sea urchin sperm. Due to their poor selectivity among monovalent cations, channel activation in seawater could contribute to sperm membrane repolarization during the speract response. © 2001 Published by Elsevier Science B.V. on behalf of the Federation of European Biochemical Societies.

Más información

Título según WOS: Sea urchin sperm cation-selective channels directly modulated by cAMP
Título según SCOPUS: Sea urchin sperm cation-selective channels directly modulated by cAMP
Título de la Revista: FEBS LETTERS
Volumen: 503
Número: 1
Editorial: Wiley
Fecha de publicación: 2001
Página de inicio: 111
Página final: 115
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0014579301027132
DOI:

10.1016/S0014-5793(01)02713-2

Notas: ISI, SCOPUS