PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20435891-2 2010 GrB is synthesized as a zymogen (proGrB) and activated in cytotoxic granules by the lysosomal cysteine protease cathepsin C (CatC) which removes the N-terminal dipeptide Gly-Glu. Glycine 170-173 granzyme B Mus musculus 0-3