The DNA-associated protein encoded by this gene is a member of the paired family of homeobox proteins localized to the nucleus. The protein functions as a transcription factor involved in the development of several major noradrenergic neuron populations and the determination of neurotransmitter phenotype. The gene product is linked to enhancement of second messenger-mediated activation of the dopamine beta-hydroylase, c-fos promoters and several enhancers, including cyclic amp-response element and serum-response element. [provided by RefSeq, Jul 2008].
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McGaughey, Vinton, Huynh, Al-Saif, Beer, McCallion: "Metrics of sequence constraint overlook regulatory sequences in an exhaustive analysis at phox2b." in: Genome research, Vol. 18, Issue 2, pp. 252-60, (2008) (PubMed).