ClinVar Miner

Submissions for variant NM_000057.4(BLM):c.842A>G (p.His281Arg)

dbSNP: rs202042636
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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000529811 SCV000623354 uncertain significance Bloom syndrome 2024-07-23 criteria provided, single submitter clinical testing This sequence change replaces histidine, which is basic and polar, with arginine, which is basic and polar, at codon 281 of the BLM protein (p.His281Arg). This variant is present in population databases (no rsID available, gnomAD 0.009%). 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: 454167). 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 not expected to disrupt BLM protein function with a negative predictive value of 80%. 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.
Mendelics RCV000529811 SCV001139691 uncertain significance Bloom syndrome 2019-05-28 criteria provided, single submitter clinical testing
Ambry Genetics RCV001017747 SCV001178879 likely benign Hereditary cancer-predisposing syndrome 2024-03-14 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.
Quest Diagnostics Nichols Institute San Juan Capistrano RCV003478103 SCV004222510 uncertain significance not provided 2022-12-03 criteria provided, single submitter clinical testing The variant has not been reported in the published literature. The frequency of this variant in the general population, 0.000087 (3/34582 chromosomes, http://gnomad.broadinstitute.org), is uninformative in assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant.
Natera, Inc. RCV000529811 SCV002089980 uncertain significance Bloom syndrome 2018-10-17 no assertion criteria provided clinical testing

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