Human Spinesin Antibody

Spinesin, encoded by the TMPRSS5 gene, is a member of type II transmembrane serine proteases (TTSPs) (1). Human Spinesin contains the following structural domains: a short N‑terminal cytoplasmic tail (amino acids 1‑49), a transmembrane domain (amino acids 50‑70), a stem region and a serine protease domain (amino acids 71‑457) (2). The domain structure of Spinesin is common to other TTSPs, many of which have additional domains. The stem region of Spinesin contains a scavenger receptor-like domain. The ectodomain of human Spinesin (amino acids 71‑457) was expressed and purified as a single chain pro-enzyme. The deduced amino acid sequence contains a Leu instead of a Phe residue at position 369; the former is identical to the mouse protein (3, 4). The amino acid sequence of human Spinesin is 94%, 82%, 81% and 79% identical to that of chimpanzee, canine, rat and mouse.