PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20382709-5 2010 In both LNCaP prostate cancer cells and human semen, TMPRSS2 protein was detected predominantly as inactive zymogen forms as part of an array of multiple noncovalent and disulfide-linked complexes, suggesting that TMPRSS2 activity may be regulated by unconventional mechanisms. Disulfides 170-179 transmembrane serine protease 2 Homo sapiens 53-60