PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10489331-2 1999 Current Gal4-dependent two-hybrid screens employ mostly bait and library vectors, which both have the ampicillin gene as a selection marker in bacteria. Ampicillin 102-112 galectin 4 Homo sapiens 8-12 10489331-4 1999 We have replaced the ampicillin gene by a kanamycin gene in a Gal4 DNA binding domain bait vector. Ampicillin 21-31 galectin 4 Homo sapiens 62-66