ClinVar Miner

Submissions for variant NM_032638.5(GATA2):c.100A>T (p.Met34Leu)

gnomAD frequency: 0.00002  dbSNP: rs762794939
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001224015 SCV001396188 uncertain significance Deafness-lymphedema-leukemia syndrome; Monocytopenia with susceptibility to infections 2024-04-15 criteria provided, single submitter clinical testing This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 34 of the GATA2 protein (p.Met34Leu). This variant is present in population databases (rs762794939, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with GATA2-related conditions. ClinVar contains an entry for this variant (Variation ID: 951993). 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 GATA2 protein function with a negative predictive value of 95%. 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.
GeneDx RCV004778012 SCV005390841 uncertain significance not provided 2024-04-03 criteria provided, single submitter clinical testing Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Ambry Genetics RCV005340690 SCV006007544 uncertain significance Inborn genetic diseases 2025-02-10 criteria provided, single submitter clinical testing The p.M34L variant (also known as c.100A>T), located in coding exon 1 of the GATA2 gene, results from an A to T substitution at nucleotide position 100. The methionine at codon 34 is replaced by leucine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear.

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