Word: catsper
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...edition of the journal Nature, David E. Clapham, a professor at Harvard Medical School, described a new kind of ion channel in sperm that is necessary for sperm to fertilize the egg. Clapham and his group named the protein that forms the channel “CatSper...
...When CatSper is not present, sperm become lethargic and may be unable to enter the crucial “hyperactivation” stage that allows it to break through the membrane protecting...
Mice that lack CatSper have sex just as often as normal mice. The mutant males, however, are infertile...