ClinVar Miner

Submissions for variant NM_019098.5(CNGB3):c.1376T>C (p.Met459Thr)

gnomAD frequency: 0.00008  dbSNP: rs375886578
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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 RCV001374180 SCV001570966 uncertain significance not provided 2022-10-13 criteria provided, single submitter clinical testing This sequence change replaces methionine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 459 of the CNGB3 protein (p.Met459Thr). This variant is present in population databases (rs375886578, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with CNGB3-related conditions. ClinVar contains an entry for this variant (Variation ID: 1064233). 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 CNGB3 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 RCV004611797 SCV005109349 uncertain significance Inborn genetic diseases 2024-05-28 criteria provided, single submitter clinical testing The c.1376T>C (p.M459T) alteration is located in exon 12 (coding exon 12) of the CNGB3 gene. This alteration results from a T to C substitution at nucleotide position 1376, causing the methionine (M) at amino acid position 459 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.
Natera, Inc. RCV001831330 SCV002076075 uncertain significance Achromatopsia 2020-03-04 no assertion criteria provided clinical testing

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