Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Clin |
RCV000810090 | SCV002600076 | uncertain significance | Arginine:glycine amidinotransferase deficiency | 2022-06-06 | reviewed by expert panel | curation | The NM_001482.3:c.1162A>G variant in GATM is a missense variant predicted to cause substitution of isoleucine by valine at amino acid 388 (p.Ile388Val). This variant is absent in gnomAD v2.1.1 (PM2_Supporting). The computational predictor REVEL gives a score of 0.131 which is below the threshold of 0.15, evidence that does not predict a damaging effect on AGAT function (BP4). There is a ClinVar entry for this variant (Variation ID: 654184). In summary, this variant meets the criteria to be classified as a variant of uncertain significance for AGAT deficiency based on the ACMG/AMP criteria applied, as specified by the ClinGen Cerebral Creatine Deficiency Syndromes Variant Curation Expert Panel (Specifications Version 1.1.0): PM2_Supporting, BP4. (Classification approved by the ClinGen CCDS VCEP on June 6, 2022). |
Labcorp Genetics |
RCV000810090 | SCV000950278 | uncertain significance | Arginine:glycine amidinotransferase deficiency | 2022-06-30 | criteria provided, single submitter | clinical testing | This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 388 of the GATM protein (p.Ile388Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with GATM-related conditions. ClinVar contains an entry for this variant (Variation ID: 654184). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). 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. |