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Wincek, T.J. et al.

Fertilization: a uterine glycosaminoglycan stimulates the conversion of sperm proacrosin to acrosin.

Acrosin is a proteinase required for mammalian fertilization, and in freshly ejaculated spermatozoa exists as an inactive zymogen, proacrosin. A factor prsent in uterine flushings of gilts stimulates the conversion of highly pruified boar proacrosin to acrosin. Characterization of this factor indicates that its active component is a glycosaminoglycan.[1]

References

Fertilization: a uterine glycosaminoglycan stimulates the conversion of sperm proacrosin to acrosin. Wincek, T.J., Parrish, R.F., Polakoski, K.L. Science (1979) [Pubmed]

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