It's found only in the tails of sperm. It takes seven genes to build it. It gets activated as the sperm gets closer to the egg, giving it that extra whip and thrust to make it across the finish line. David Clapham, its discoverer, named it CatSper. Blocking it could literally make sperm impotent. This could be the basis of a new contraceptive gel or a pill that could be used by men or women.
Posted: Apr 7th, 2011Read more