PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8226878-5 1993 Most significantly a highly repetitive region (19 repeat units of 20 residues each), not found in either human or rat, enlarges one of the characteristic serine-glycine containing regions (designated CS-2) while the other serine-glycine containing domain (designated CS-1) is approximately one-fourth the length of the mammalian CS-1. Glycine 161-168 catalase Rattus norvegicus 267-271