ClinVar Miner

Submissions for variant NM_001303256.3(MORC2):c.2023C>T (p.Arg675Ter)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV002852749 SCV003228682 uncertain significance Charcot-Marie-Tooth disease axonal type 2Z 2023-04-05 criteria provided, single submitter clinical testing 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. ClinVar contains an entry for this variant (Variation ID: 2022789). This variant has not been reported in the literature in individuals affected with MORC2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Arg675*) in the MORC2 gene. It is expected to result in an absent or disrupted protein product. However, the current clinical and genetic evidence is not sufficient to establish whether loss-of-function variants in MORC2 cause disease.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV003226557 SCV003922828 uncertain significance not specified 2023-03-15 criteria provided, single submitter clinical testing Variant summary: MORC2 c.2023C>T (p.Arg675X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay. The variant was absent in 251244 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.2023C>T in individuals affected with Developmental Delay, Impaired Growth, Dysmorphic Facies, And Axonal Neuropathy and no experimental evidence demonstrating its impact on protein function have been reported. One clinical diagnostic laboratory has submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance.

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