ClinVar Miner

Submissions for variant NM_153704.6(TMEM67):c.766A>G (p.Asn256Asp)

gnomAD frequency: 0.00001  dbSNP: rs369178053
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001989730 SCV002228354 uncertain significance Familial aplasia of the vermis; Meckel-Gruber syndrome 2022-10-25 criteria provided, single submitter clinical testing This sequence change replaces asparagine, which is neutral and polar, with aspartic acid, which is acidic and polar, at codon 256 of the TMEM67 protein (p.Asn256Asp). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with TMEM67-related conditions. ClinVar contains an entry for this variant (Variation ID: 1449645). 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 TMEM67 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.
Fulgent Genetics, Fulgent Genetics RCV005042581 SCV005675613 uncertain significance COACH syndrome 1; Joubert syndrome 6; Meckel syndrome, type 3; RHYNS syndrome; Bardet-Biedl syndrome 14; Nephronophthisis 11 2024-01-09 criteria provided, single submitter clinical testing

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