MYH7 variants in DCM cohorts


The table below lists the 45 rare (MAF<0.0001 in ExAC) protein-altering MYH7 variants identified in a cohort of 756 DCM patients. When this rare variant frequency of 0.05952 is compared with a background population rate of 0.01398, there is a statistically significant case excess of 0.04554 (p<0.0001), which suggests that approximately 35 of these variants may be pathogenic.


Variant Type:      All protein-altering variants     -     Truncating variants     -     Non-Truncating variants
Source:      Combined (OMGL + LMM)     -     OMGL     -     LMM



No. Variant (CDS) Variant (Protein) Variant Type Cases (756)LMM class ExAC frequency
1. c.2711G>A p.R904Hmissense 2Likely Pathogenic0.000000
2. c.2678C>T p.A893Vmissense 2VUS favour pathogenic0.000000
3. c.3856G>A p.E1286Kmissense 2Likely Pathogenic0.000016
4. c.1405G>T p.D469Ymissense 2Likely Pathogenic0.000000
5. c.1597A>G p.I533Vmissense 2Likely Pathogenic0.000000
6. c.1106G>A p.R369Qmissense 2Likely Pathogenic0.000000
7. c.1570A>G p.I524Vmissense 1Likely Pathogenic0.000000
8. c.4408T>C p.S1470Pmissense 1VUS favour pathogenic0.000000
9. c.742A>T p.I248Fmissense 1Likely Pathogenic0.000000
10. c.1630A>G p.T544Amissense 1VUS0.000016
11. c.2348G>C p.R783Pmissense 1Likely Pathogenic0.000000
12. c.2683C>G p.Q895Emissense 1VUS0.000000
13. c.1791C>A p.N597Kmissense 1Likely Pathogenic0.000000
14. c.709C>T p.R237Wmissense 1VUS0.000008
15. c.5401G>A p.E1801Kmissense 1Likely Pathogenic0.000000
16. c.5740G>A p.E1914Kmissense 1Likely Pathogenic0.000000
17. c.4411C>T p.Q1471Xnonsense 1VUS favour pathogenic0.000000
18. c.4985G>A p.R1662Hmissense 1VUS favour pathogenic0.000057
19. c.1892T>C p.I631Tmissense 1VUS0.000016
20. c.3734T>A p.L1245Qmissense 1VUS0.000000
21. c.835G>A p.A279Tmissense 1VUS favour pathogenic0.000000
22. c.184G>A p.E62Kmissense 1VUS0.000008
23. c.2973G>T p.K991Nmissense 1VUS favour pathogenic0.000000
24. c.3982G>A p.A1328Tmissense 1VUS favour pathogenic0.000043
25. c.4348G>A p.D1450Nmissense 1Likely Pathogenic0.000008
26. c.602T>C p.I201Tmissense 1Likely Pathogenic0.000000
27. c.2710C>T p.R904Cmissense 1Pathogenic0.000008
28. c.2171T>A p.I724Nmissense 1VUS favour pathogenic0.000000
29. c.734G>A p.G245Emissense 1Likely Pathogenic0.000000
30. c.4030C>T p.R1344Wmissense 1VUS favour pathogenic0.000016
31. c.1700G>A p.R567Hmissense 1Likely Pathogenic0.000016
32. c.4720C>T p.R1574Wmissense 1Likely Pathogenic0.000000
33. c.5380C>G p.Q1794Emissense 1Likely Pathogenic0.000000
34. c.1573G>A p.E525Kmissense 1Likely Pathogenic0.000000
35. c.3578G>A p.R1193Hmissense 1Likely Pathogenic0.000000
36. c.3455A>T p.E1152Vmissense 1Likely Pathogenic0.000000
37. c.1402T>C p.F468Lmissense 1VUS favour pathogenic0.000000
38. c.1888C>T p.P630Smissense 1VUS0.000016

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.