PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16343532-3 2006 A previous crystal structure of a microcystin bound to the catalytic subunit of protein phosphatase-1 (PP-1c) showed distinct changes in the active site region when compared with protein phosphatase-1 structures bound to other toxins. microcystin 34-45 protein phosphatase 1 catalytic subunit gamma Homo sapiens 103-108