function:Has antibacterial activity against the Gram-negative bacteria E.coli. May play a role in sperm maturation and fertilization.,similarity:Belongs to the cystatin family.,subcellular location:Nuclear and cytoplasmic in the epididymis. Localized to the postacrosomal and tail regions of sperm. Probably localized to the outer surface of sperm.,tissue specificity:Detected in the epithelium and lumen of the epididymis, and in sperm (at protein level).,
Secreted . Probably secreted into the epididymis lumen, where it localizes to the outer surface of sperm. Specifically localizes to the postacrosomal and tail regions of sperm. .
Detected in the epithelium and lumen of the epididymis, and in sperm (at protein level).
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