ClinVar Miner

Submissions for variant NM_144573.3(NEXN):c.65A>G (p.Tyr22Cys) (rs1057518512)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000414636 SCV000492238 uncertain significance not specified 2016-12-02 criteria provided, single submitter clinical testing A novel variant of uncertain significance has been identified in the NEXN gene. The Y22C variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. It was not observed in approximately 6,000 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. In addition, the Y22C variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. Moreover, this substitution occurs at a position that is conserved across species, and in silico analysis predicts this variant is probably damaging to the protein structure/function. Nonetheless, this variant lacks observation in a significant number of affected individuals, segregation data, and functional evidence, all of which would further clarify pathogenicity.Therefore, based on the currently available information, it is unclear whether this variant is pathogenic or rare benign. This result cannot be interpreted for diagnosis or used for family member screening at this time.

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