Total submissions: 1
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Invitae | RCV000527790 | SCV000626170 | uncertain significance | Fanconi anemia | 2017-04-03 | criteria provided, single submitter | clinical testing | In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. A different missense substitution at this codon (p.Gln869Pro) has been reported in individuals affected with Fanconi anemia in the literature (PMID: 15643609) and in the Leiden Open-source Variation Database (PMID: 21520333), however, in some of these individuals, a second FANCA variant was not identified. In addition, an experimental study demonstrates that this variant may disrupt FANCA protein complex formation with FANCB and FANCL (PMID: 16720839). This suggests that the glutamine residue is may be critical for FANCA protein function. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a FANCA-related disease. This sequence change replaces glutamine with histidine at codon 869 of the FANCA protein (p.Gln869His). The glutamine residue is highly conserved and there is a small physicochemical difference between glutamine and histidine. |