PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12574942-1 2003 Hereditary cystathioninuria (MIM 219500) is presumed to be caused by deficiency of the activity of cystathionine gamma-lyase (cystathionase; CTH EC 4.4.1.1), which is normally required for the conversion of methionine into cysteine. Cysteine 223-231 cystathionine gamma-lyase Homo sapiens 99-124