PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8037844-4 1994 Structure-toxicity studies suggest that the coplanar PCBs, namely, 3,3",4,4"-tetrachlorobiphenyl (tetraCB), 3,3",4,4",5-pentaCB, 3,3",4,4",5,5"-hexaCB, and their monoortho analogs are Ah-receptor agonists and contribute significantly to the toxicity of the PCB mixtures. 3,3",4,4",5-pentacb 108-127 pyruvate carboxylase Homo sapiens 53-56