ClinVar Miner

Submissions for variant NM_000052.7(ATP7A):c.3137C>T (p.Thr1046Ile) (rs1064796648)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000484292 SCV000573578 likely pathogenic not provided 2018-01-31 criteria provided, single submitter clinical testing The T1046I variant in the ATP7A gene has been reported previously in a patient with Menkes disease who initiated copper-histidine treatment after 1 month of age and was able to feed orally, though no additional specific clinical information was provided (Gu et al., 2014). The T1046I variant is not observed in large population cohorts (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The T1046I 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. In addition, 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. Missense variants in nearby residues (D1044G and T1048I) have been reported in the Human Gene Mutation Database in association with Menkes disease (Stenson et al., 2014), supporting the functional importance of this region of the protein. The T1046I variant is a strong candidate for a pathogenic variant, however the possibility it may be a rare benign variant cannot be excluded.

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