TTN : c.97613G>A

TTN gene summary

Variant Details

Variant (CDS)Variant (protein)Variant Type Variant EffectGenomic Location (GRCh37)ExAC Frequency
c.97613G>Ap.R32538H (Arg > His)substitutionmissense chr2:179406191 (reverse strand)0.17782218

Effect in Cardiac Disease

As this variant is present at a population frequency of 0.17782218 (ExAC mean allelic frequency), it is highly 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
ExAC0.14724282
9650 / 65538		0.06962558
662 / 9508		0.43403600
3665 / 8444		0.26230327
4200 / 16012		0.15225129
1711 / 11238		0.14824507
963 / 6496		0.17346939
153 / 882		0.17782218
21004 / 118118
ESP 0.14534
1206 / 8298		 0.07316
289 / 3950		 0.12206
1495 / 12248
1KG
 0.13119
106 / 808		 0.06657
88 / 1322		 0.45139
455 / 1008		 0.26892
263 / 978		 0.14841
103 / 694		 0.16667
33 / 198		 0.20927
1048 / 5008
View sub-population details for 1000 Genomes (1KG) data
Hide sub-population details for 1000 Genomes (1KG) data

0.13736
25 / 182
British
0.06557
8 / 122
African-American
0.58602
109 / 186
Chinese Dai
0.30233
52 / 172
Bengali
0.14362
27 / 188
Colombian
0.14486
31 / 214
Iberian
0.08333
16 / 192
African-Caribbean
0.35922
74 / 206
Han, Beijing
0.25243
52 / 206
Gujarati Indian
0.09375
12 / 128
Mexican, LA
0.12150
26 / 214
Toscani
0.06061
12 / 198
Esan, Nigeria
0.43269
90 / 208
Japanese
0.27451
56 / 204
Indian Telugu
0.17647
30 / 170
Peruvian
0.12121
24 / 198
Utah Europeans
0.06195
14 / 226
Gambian
0.44949
89 / 198
Kinh, Vietnam
0.26042
50 / 192
Punjabi, Lahore
0.16346
34 / 208
Puerto Rican
0.03030
6 / 198
Luhya, Kenya
0.44286
93 / 210
Southern Han
0.25980
53 / 204
Tamil
0.07059
12 / 170
Mende
0.09259
20 / 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_391t1NM_001267550.1
Protein ENSP00000467141 LRG_391p1

Missense Variant Predictions
SIFT Grantham Polyphen-DIV Polyphen-VAR Summary
50% of algorithms have predicted that this variant will adversely affect protein function
damaging conservative probably damaging probably damaging
LRT MutationTaster MutationAssessor FATHMM
polymorphism (auto) 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.