PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1883632-1 1991 The cytosolic isoenzyme of human liver alanine aminotransferase exhibited a progressive change in its chromatographic behavior on DEAE-Sepharose when partially purified preparations were stored for up to 8 days at 4 degrees C. This change was characterized by the appearance of an additional chromatographic variant and was avoided by addition of 2-mercaptoethanol. deae-sepharose 130-144 glutamic--pyruvic transaminase Homo sapiens 39-63