PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7840619-4 1995 Substrate protection studies demonstrated that substrates for the tricarboxylate transporter (i.e., citrate, isocitrate, phosphoenolpyruvate, and malate) effectively protected against PLP inhibition, whereas other organic anions which are not transported by the tricarboxylate carrier (i.e., malonate, alpha-ketoglutarate, phosphate, and succinate) afforded considerably less protection. isocitric acid 109-119 pyridoxal phosphatase Homo sapiens 184-187