TTN : c.9487C>T
Variant Details
| Variant (CDS) | Variant (protein) | Variant Type | Variant Effect | Genomic Location (GRCh37) | ExAC Frequency |
| c.9487C>T | p.R3163C (Arg > Cys) | substitution | missense | chr2:179631324 (reverse strand) | 0.00014890 |
Effect in Cardiac Disease
As this variant is present at a population frequency of 0.00014890 (ExAC mean allelic frequency), it is unlikely to be pathogenic.
The role on non-truncating TTN variants in cardiac disease has not yet been analysed in these studies.
Detection in Population Databases
| Database | European | African | East Asian | South Asian | American | Finnish | Other | Total |
|---|---|---|---|---|---|---|---|---|
| ExAC | 0.00001504 1 / 66480 | 0.00125483 13 / 10360 | 0.00046751 4 / 8556 | 0.00000000 0 / 16470 | 0.00000000 0 / 11522 | 0.00000000 0 / 6590 | 0.00000000 0 / 908 | 0.00014890 18 / 120886 |
| ESP | 0.00000 0 / 8600 |
0.00091 4 / 4406 |
0.00031 4 / 13006 |
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| 1KG |
0.00000 0 / 1006 |
0.00151 2 / 1322 |
0.00099 1 / 1008 |
0.00000 0 / 978 |
0.00000 0 / 694 |
0.00000 0 / 198 |
0.00060 3 / 5008 |
 0 / 182 British |
 0 / 122 African-American |
 0 / 186 Chinese Dai |
 0 / 172 Bengali |
 0 / 188 Colombian |
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 0 / 214 Iberian |
 0 / 192 African-Caribbean |
 0 / 206 Han, Beijing |
 0 / 206 Gujarati Indian |
 0 / 128 Mexican, LA |
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 0 / 214 Toscani |
 0 / 198 Esan, Nigeria |
 0 / 208 Japanese |
 0 / 204 Indian Telugu |
 0 / 170 Peruvian |
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 0 / 198 Utah Europeans |
 2 / 226 Gambian |
 1 / 198 Kinh, Vietnam |
 0 / 192 Punjabi, Lahore |
 0 / 208 Puerto Rican |
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 0 / 198 Luhya, Kenya |
 0 / 210 Southern Han |
 0 / 204 Tamil |
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 0 / 170 Mende |
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 0 / 216 Yoruba, Nigeria |
The Exome Aggregation Consortium (ExAC) is a database of 60,706 unrelated individuals sequenced as part of various disease-specific and population genetic studies. There is partial overlap between ExAC and 1000 Genomes (1KG) (1,851 of the 2,504 samples in 1KG) and the Exome Sequencing Project (ESP) (3,936 of the 6,500 samples in ESP).
Other Variant & Gene Details
| Canonical Sequences |  |
 |
 |
 |
|---|---|---|---|---|
| Transcript | ENST00000589042 | LRG_391t1 | NM_001267550.1 | |
| Protein | ENSP00000467141 | LRG_391p1 |
| Missense Variant Predictions | ||||
|---|---|---|---|---|
| SIFT | Grantham | Polyphen-DIV | Polyphen-VAR | Summary 75% of algorithms have predicted that this variant will adversely affect protein function    |
| damaging | radical | probably damaging | probably damaging | |
| LRT | MutationTaster | MutationAssessor | FATHMM | |
| disease-causing | medium impact | tolerated | ||
References
1. Roddy Walsh, Kate L. Thomson, James S. Ware, Birgit H. Funke, Jessica Woodley, Karen J. McGuire, Francesco Mazzarotto, Edward Blair, Anneke Seller, Jenny C. Taylor, Eric V. Minikel, Exome Aggregation Consortium, Daniel G. MacArthur, Martin Farrall, Stuart A. Cook and Hugh Watkins. Reassessment of Mendelian gene pathogenicity using 7,855 cardiomyopathy cases and 60,706 reference samples. Genet Med. 2016 doi:10.1038/gim.2016.90.
2. Pugh TJ, Kelly MA, Gowrisankar S, Hynes E, Seidman MA, Baxter SM, Bowser M, Harrison B, Aaron D, Mahanta LM, Lakdawala NK, McDermott G, White ET, Rehm HL, Lebo M, Funke BH. The landscape of genetic variation in dilated cardiomyopathy as surveyed by clinical DNA sequencing. Genet Med. 2014 Aug;16(8):601-8.
3. Alfares AA, Kelly MA, McDermott G, Funke BH, Lebo MS, Baxter SB, Shen J, McLaughlin HM, Clark EH, Babb LJ, Cox SW, DePalma SR, Ho CY, Seidman JG, Seidman CE, Rehm HL.
Results of clinical genetic testing of 2,912 probands with hypertrophic cardiomyopathy: expanded panels offer limited additional sensitivity.
Genet Med. 2015 Nov;17(11):880-8.