function:Has bactericidal activity.,mass spectrometry: PubMed:7628632,similarity:Belongs to the beta-defensin family.,tissue specificity:Plasma.,
Secreted . Membrane . Associates with tumor cell membrane-derived microvesicles (PubMed:23938203). .
Blood plasma. Sperm. Highly expressed in the lower head and midpiece of sperm. Significantly reduced levels found in the sperms of asthenozoospermia and leukocytospermia patients (at protein level).