Infertility: A Protein's Tale

Five percent of men are affected by infertility and some new insights into sperms' swimming skills could shed light on why.In a new study, researchers have shown how a protein called RABL2 affects the length of sperm tails, crippling their motility (or swimming ability), and decreases sperm production. In laboratory tests, the team found that a mutation in RABL2 resulted in sperm tails that were 17 per cent shorter than normal. Dysfunctioning RABL2 also negatively affected sperm production, resulting in a 50 per cent decrease.  read more

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