Choanal atresia

Gene: TXNL4A

Green List (high evidence)

Burn-McKeown syndrome is a rare condition in which individuals with normal intellectual development exhibit the characteristic combination of choanal atresia, sensorineural deafness, cardiac defects, and typical craniofacial dysmorphism consisting of narrow palpebral fissures, coloboma of the lower eyelids, prominent nose with high nasal bridge, short philtrum, cleft lip and/or palate, and large and protruding ears.

Note 34-bp deletion in the promoter of the TXNL4A gene (chr18:77,748,581-77,748,614del, GRCh37) was identified in heterozygous or homozygous state in all the families reported originally. Haplotype analysis revealed that the promoter deletions were located on different haplotypes and thus most likely occurred due to recurrent events rather than a founder effect.

Created: 26 Mar 2021, 8:58 p.m. | Last Modified: 26 Mar 2021, 8:58 p.m.

Panel Version: 0.15

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Burn-McKeown syndrome, MIM# 608572

Publications

• 25434003