Protein-coding gene in the species Homo sapiens
Kallikrein-related peptidase 9 also known as KLK9 is an enzyme which in humans is encoded by the KLK9 gene.[5]
Function
KLK9 belongs to the kallikrein subgroup of serine proteases, which have diverse physiologic functions in many tissues.[6][7][8] KLK9 is primarily expressed in thymus, testis, spinal cord, cerebellum, trachea, mammary gland, prostate, brain, salivary gland, ovary, and skin.[5]
Clinical significance
KLK9 is under steroid hormone regulation in ovarian and breast cancer cell lines and is a potential prognostic marker for early-stage ovarian[9] and breast cancer patients.[10]