Molecular analysis provides further evidence that Chitayat syndrome is caused by the recurrent p.(Tyr89Cys) pathogenic variant in the ERF gene.
Alan Caro-ContrerasMiguel A Alcántara-OrtigozaJuan F Ahumada-PérezAriadna González-Del AngelPublished in: American journal of medical genetics. Part A (2018)
Chitayat syndrome (CHYTS, MIM #617180) is a rare autosomal dominant clinical condition caused by a single missense pathogenic variant in the ERF gene (19q13.2, MIM*611888), which encodes the ETS2 Repressor Factor (ERF) protein. The characteristic features reported to date for this condition are facial dysmorphism, hyperphalangism and respiratory complications during the newborn period. Herein, we report the sixth patient worldwide with a confirmed molecular diagnosis of CHYTS. Our documentation of pectus carinatum, hypoplastic phalanges (as in two previously described patients), and lack of hyperphalangism broadens the phenotypic spectrum of CHYTS. Moreover, our identification of a heterozygous mutation [c.266A>G or p.(Tyr89Cys)] [rs886041001] in this patient provides further evidence that this condition is caused by a recurrent pathogenic variant in ERF.
Keyphrases
- transcription factor
- case report
- genome wide identification
- end stage renal disease
- newly diagnosed
- ejection fraction
- copy number
- chronic kidney disease
- peritoneal dialysis
- prognostic factors
- early onset
- intellectual disability
- patient reported outcomes
- soft tissue
- electronic health record
- small molecule
- dna methylation