PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15570431-6 2005 Southern blot hybridization of the PCR product enhanced sensitivity of detection, and 26% more samples (13/50 samples tested) scored positive, indicating an even higher MAGE-A3 mRNA frequency than determined by simple ethidium bromide gel analysis. Ethidium 218-234 MAGE family member A3 Homo sapiens 169-176