Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV000020056 | SCV004292651 | uncertain significance | Lethal multiple pterygium syndrome | 2023-06-05 | criteria provided, single submitter | clinical testing | In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt CHRNA1 protein function. ClinVar contains an entry for this variant (Variation ID: 18388). This variant is also known as R234L. This missense change has been observed in individual(s) with clinical features of congenital myasthenic syndrome (PMID: 18252226). This variant is present in population databases (rs137852809, gnomAD 0.003%). This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 229 of the CHRNA1 protein (p.Arg229Leu). |
OMIM | RCV000020056 | SCV000040354 | pathogenic | Lethal multiple pterygium syndrome | 2008-02-01 | no assertion criteria provided | literature only |