PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16893530-1 2006 BACKGROUND: Transcription factors of the Nur family (Nurr1, Nur77, and Nor-1) are orphan nuclear receptors closely associated with dopamine neurotransmission in the central nervous system. Dopamine 131-139 nuclear receptor subfamily 4, group A, member 2 Mus musculus 53-58