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Guanine-Nucleotide Exchange Factors (RAPGEF3/RAPGEF4) Induce Sperm Membrane Depolarization and Acrosomal Exocytosis in Capacitated Stallion Sperm1

7 Apr 2011

Abstract excerpt

Capacitation encompasses the molecular changes sperm undergo to fertilize an oocyte, some of which are postulated to occur via a cAMP-PRKACA (protein kinase A)-mediated pathway. Due to the recent discovery of cAMP-activated guanine nucleotide exchange factors RAPGEF3 and RAPGEF4, we sought to investigate the separate roles of PRKACA and RAPGEF3/RAPGEF4 in modulating capacitation and acrosomal exocytosis. Indirect...

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PMID: 21471298
DOI: 10.1095/biolreprod.110.085555

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