The SLO3 sperm-specific potassium channel plays a vital role in male fertility.
The SLO3 sperm-specific potassium channel plays a vital role in male fertility.
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DOI:
10.1016/j.febslet.2010.02.005
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发表时间:
2010-03-05
期刊:
影响因子:
3.5
通讯作者:
Salkoff L
中科院分区:
文献类型:
--
作者:
Santi CM;Martínez-López P;de la Vega-Beltrán JL;Butler A;Alisio A;Darszon A;Salkoff L
Here we show a unique example of male infertility conferred by a gene knock-out of the sperm-specific, pH-dependent SLO3 potassium channel. In striking contrast to wild-type sperm which undergo membrane hyperpolarization during capacitation, we found that SLO3 mutant sperm undergo membrane depolarization. Several defects in SLO3 mutant sperm are evident under capacitating conditions, including impaired motility, a bent “hairpin” shape, and failure to undergo the acrosome reaction (AR). The failure of AR is rescued by valinomycin which hyperpolarizes mutant sperm. Thus SLO3 is the principal potassium channel responsible for capacitation-induced hyperpolarization, and membrane hyperpolarization is crucial to the AR.
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影响因子:
3.6
作者:
Marquez, Becky;Suarez, Susan S.
通讯作者:
Suarez, Susan S.
DOI:
10.1073/pnas.2536658100
发表时间:
2003-12-09
影响因子:
11.1
作者:
Carlson, AE;Westenbroek, RE;Babcock, DF
通讯作者:
Babcock, DF
影响因子:
4.1
作者:
Cooper, TG;Yeung, CH;Sipilä, P
通讯作者:
Sipilä, P
影响因子:
2.7
作者:
Acevedo, JJ;Mendoza-Lujambio, I;Darszon, A
通讯作者:
Darszon, A
影响因子:
3.5
作者:
ESPINOSA, F;DARSZON, A
通讯作者:
DARSZON, A