ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.105967G>A (p.Gly35323Ser)

dbSNP: rs372749780
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000622125 SCV000735471 uncertain significance Cardiovascular phenotype 2016-07-31 criteria provided, single submitter clinical testing The p.G26258S variant (also known as c.78772G>A), located in coding exon 185 of the TTN gene, results from a G to A substitution at nucleotide position 78772. This alteration is located in the M-band region of the N2-B isoform of the titin protein. The glycine at codon 26258 is replaced by serine, an amino acid with similar properties. This variant was previously reported in the SNPDatabase as rs372749780. Based on data from ExAC, the A allele has an overall frequency of less than 0.01% (1/105470). Based on data from the NHLBI Exome Sequencing Project (ESP), the A allele has an overall frequency of approximately 0.01% (1/11962) total alleles studied, having been observed in 0.03% (1/3732) African American alleles. This amino acid position is well conserved in available vertebrate species; however, serine is the reference amino acid in other vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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