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PHOX2B

Synonyms
CCHS, NBLST2, NBPhox, PMX2B
External resources
Summary
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. Expansion of a 20 amino acid polyalanine tract in this protein by 5-13 aa has been associated with congenital central hypoventilation syndrome.

Variant counts

Variant classification counts according to ACMG guideline on all identified variants among our tested samples are listed. The variants with over 5% variant frequency in population genome databases ( gnomAD, dbSNP, etc) are excluded.

Pathogenic
0
Likely pathogenic
0
VUS
217
Likely benign
256
Benign
813

Patient phenotypes

No patients carry pathogenic or likely pathogenic variants on PHOX2B gene.

Phenotype class
Patients in 3billion (%)

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