ClinVar Miner

Submissions for variant NM_000057.4(BLM):c.722G>A (p.Gly241Asp)

gnomAD frequency: 0.00004  dbSNP: rs200897029
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000628619 SCV000749521 uncertain significance Bloom syndrome 2024-01-31 criteria provided, single submitter clinical testing This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 241 of the BLM protein (p.Gly241Asp). This variant is present in population databases (rs200897029, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with BLM-related conditions. ClinVar contains an entry for this variant (Variation ID: 524760). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The aspartic acid amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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.
Ambry Genetics RCV001026183 SCV001188512 likely benign Hereditary cancer-predisposing syndrome 2018-05-10 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Sema4, Sema4 RCV001026183 SCV002533162 uncertain significance Hereditary cancer-predisposing syndrome 2022-02-16 criteria provided, single submitter curation
GeneDx RCV002275094 SCV002562545 uncertain significance not provided 2024-07-05 criteria provided, single submitter clinical testing Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge

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