ClinVar Miner

Submissions for variant NM_000179.2(MSH6):c.3951dup (p.Arg1318Ter) (rs1553333690)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000657820 SCV000779575 pathogenic not provided 2018-10-15 criteria provided, single submitter clinical testing This duplication of one nucleotide is denoted MSH6 c.3951dupT at the cDNA level and p.Arg1318Ter (R1318X) at the protein level. The normal sequence, with the base that is duplicated in brackets, is GACA[dupT]AGAA. The duplication creates a nonsense variant, which changes an Arginine to a premature stop codon. Although this variant has not, to our knowledge, been reported in the literature, it is predicted to cause loss of normal protein function through protein truncation. Even though nonsense-mediated decay is not expected to occur due to the position of the variant, it is significant as the last 43 amino acids are lost. The disrupted region at the end of the gene is located within the ATPase domain and the MSH2 binding site (Kariola 2002, Warren 2007, Kansikas 2011). This variant is considered pathogenic.

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