Human Kallikrein 12 Antibody

Human tissue Kallikrein 12, encoded by the KLK12 gene, is a secreted serine protease that belongs to the human tissue kallikrein family. It is present in many tissues, such as salivary gland, stomach and breast. KLK12 displays trypsin-like enzymatic activity. This activity can be inhibited by Serpin F2 (R&D Systems, Catalog # 1470-PI). The physiological functions of KLK12 still remain unclear. Its expression is modulated by steroid hormones and is down‑regulated in breast cancer (2). Human KLK12 has three splice variants resulting from alternative splicing of the 3’ end. The KLK12 produced by the R&D Systems corresponds to the full-length classical form, also known as isoform 2 (1). The amino acid sequence of human KLK12 is 80%, 77%, 71% and 66% to that of bovine, canine, mouse, and rat. The recombinant human KLK12 can be autoactivated under the conditions described in the Activity Assay Protocol. The active enzyme has the N-terminal sequence of I₂₂FNGTECGRNS.