PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7556599-0 1995 The cyanobacterial toxin microcystin binds covalently to cysteine-273 on protein phosphatase 1. microcystin 25-36 inorganic pyrophosphatase 1 Homo sapiens 73-94 7556599-1 1995 The interaction between protein phosphatase 1 (PP1) and microcystin (MC) was stable in 1% SDS or 70% formic acid indicative of a covalent interaction. microcystin 56-67 inorganic pyrophosphatase 1 Homo sapiens 24-45 7556599-1 1995 The interaction between protein phosphatase 1 (PP1) and microcystin (MC) was stable in 1% SDS or 70% formic acid indicative of a covalent interaction. microcystin 56-67 inorganic pyrophosphatase 1 Homo sapiens 47-50 7556599-1 1995 The interaction between protein phosphatase 1 (PP1) and microcystin (MC) was stable in 1% SDS or 70% formic acid indicative of a covalent interaction. microcystin 69-71 inorganic pyrophosphatase 1 Homo sapiens 24-45 7556599-1 1995 The interaction between protein phosphatase 1 (PP1) and microcystin (MC) was stable in 1% SDS or 70% formic acid indicative of a covalent interaction. microcystin 69-71 inorganic pyrophosphatase 1 Homo sapiens 47-50 7556599-2 1995 Here we isolate the MC-binding peptide and demonstrate that Cys273 of PP1 binds covalently to the methyl-dehydroalanine (Mdha) residue of the toxin. microcystin 20-22 inorganic pyrophosphatase 1 Homo sapiens 70-73