ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.42968dup (p.Pro14324fs)

dbSNP: rs1553741321
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine RCV000616863 SCV000712247 likely pathogenic Primary dilated cardiomyopathy 2016-06-10 criteria provided, single submitter clinical testing The p.Pro11756Alafs variant in TTN has not been previously reported in individua ls with cardiomyopathy or in large population studies. This variant is predicted to cause a frameshift, which alters the protein?s amino acid sequence beginning at position 11756 and leads to a premature termination codon 11 amino acids dow nstream. This alteration is then predicted to lead to a truncated or absent prot ein. Truncating variants in TTN are strongly associated with DCM if they impact the exons encoding for the A-band (Herman 2012, Pugh 2014) and/or are located in an exon that is highly expressed in the heart (Roberts 2015). The p.Pro11756Ala fs variant is located in the highly expressed exon 182 in the I band. In summary , although additional studies are required to fully establish its clinical signi ficance, the p.Pro11756Alafs variant is likely pathogenic.

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