PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29324782-2 2018 Previous studies have shown that MAFB is expressed in embryonic and adult mouse testes and is expected to act as the downstream target of retinoic acid (RA) to initiate spermatogenesis. Tretinoin 138-151 v-maf musculoaponeurotic fibrosarcoma oncogene family, protein B (avian) Mus musculus 33-37