SRCR_2 is a scavenger receptor cysteine-rich domain family found largely on vertebrate sequences up-stream of the trypsin-like transmembrane serine protease, Spinesin.

1: Spinesin/TMPRSS5, a novel transmembrane serine protease, cloned from human spinal cord. Yamaguchi N, Okui A, Yamada T, Nakazato H, Mitsui S; J Biol Chem. 2002;277:6806-6812. PMID:11741986