ClinGen Dosage Sensitivity Curation Page

FOXP2

Curation Status: Complete

Gene Information

Location Information

Evidence for Loss Phenotypes

Evidence for loss of function phenotype
PubMed ID Description
15877281 MacDermot et al. (2005) identified a heterozygous C-to-T transition in exon 7 of the FOXP2 gene, resulting in an arg328-to-ter (R328X) substitution, in 2 siblings with verbal apraxia and their mother, who was described as having a history of "speech problems." The R328X mutation was not identified in 252 control chromosomes.

Evidence for Triplosenstive Phenotype

NOTE:The loss of function score should be used to evaluate deletions, and the triplosensitivity score should be used to evaluated duplications. CNVs encompassing more than one gene must be evaluated in their totality (e.g. overall size, gain vs. loss, presence of other genes, etc). The rating of a single gene within the CNV should not necessarily be the only criteria by which one defines a clinical interpretation. Individual interpretations must take into account the phenotype described for the patient as well as issues of penetrance and expressivity of the disorder. ACMG has published guidelines for the characterization of postnatal CNVs, and these recommendations should be utilized (Genet Med (2011)13: 680-685). Exceptions to these interpretive correlations will occur, and clinical judgment should always be exercised.