PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8507876-3 1993 Cystathionine is subsequently cleaved to cysteine and alpha-ketobutyrate by the pyridoxal phosphate-dependent enzyme gamma-cystathionase. Cystathionine 0-13 cystathionine gamma-lyase Homo sapiens 117-136