PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8144640-9 1994 Two major components of P2, 4-hydroxy-retinoic acid and 4-oxo-retinoic acid, when bound to CRABP were metabolized slowly, if at all, by testis microsomes, in contrast to CRABP-bound retinoic acid which had an elimination t1/2 of 40 min. 4-hydroxyretinoic acid 28-51 cellular retinoic acid binding protein 1 Homo sapiens 91-96