PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1780443-11 1991 However, these cells showed the ability to convert exogenous leukotriene A4 into leukotriene B4 suggesting the presence of LTA4 hydrolase activity. Leukotriene A4 61-75 leukotriene A-4 hydrolase Cavia porcellus 123-137