PKP2 protein-altering variants in ARVC cohorts


The table below lists the 101 rare (MAF<0.0001 in ExAC) protein-altering PKP2 variants identified in a cohort of 361 ARVC patients. When this rare variant frequency of 0.27978 is compared with a background population rate of 0.01358, there is a statistically significant case excess of 0.26620 (p<0.0001), which suggests that approximately 96 of these variants may be pathogenic.


Variant Type:      All protein-altering variants     -     Truncating variants     -     Non-Truncating variants
Source:      OMGL



No. Variant (CDS) Variant (Protein) Variant Type Cases (361)OMGL class ExAC frequency
1. c.1114G>A p.A372Tmissense 1VUS0.000008
2. c.2393C>G p.T798Rmissense 1VUS0.000000
3. c.2062T>C p.S688Pmissense 1VUS0.000032
4. c.2540T>C p.L847Pmissense 1VUS0.000000
5. c.68G>A p.G23Emissense 1VUS0.000000
6. c.941G>A p.G314Emissense 1VUS0.000057
7. c.2058T>A p.Y686Xnonsense 1Pathogenic0.000000
8. c.2119C>T p.Q707Xnonsense 1Pathogenic0.000000
9. c.2493T>A p.Y831Xnonsense 1Pathogenic0.000000
10. c.358G>T p.E120Xnonsense 2Pathogenic0.000000
11. c.235C>T p.R79Xnonsense 1Pathogenic0.000000
12. c.775G>T p.E259Xnonsense 1Pathogenic0.000000
13. c.1237C>T p.R413Xnonsense 2Pathogenic0.000016
14. c.1063C>T p.R355Xnonsense 1Pathogenic0.000008
15. c.1999G>T p.E667Xnonsense 2Pathogenic0.000000
16. c.275T>A p.L92Xnonsense 3Pathogenic0.000000
17. c.1132C>T p.Q378Xnonsense 3Pathogenic0.000000
18. c.663C>A p.Y221Xnonsense 1Pathogenic0.000008
19. c.1177C>T p.Q393Xnonsense 1Pathogenic0.000000
20. c.1754C>G p.S585Xnonsense 1Pathogenic0.000000
21. c.1689-1G>C essential splice site 1Pathogenic0.000008
22. c.1170+1G>C essential splice site 1Pathogenic0.000000
23. c.2490-1G>C essential splice site 1Pathogenic0.000000
24. c.2146-1G>C essential splice site 24Pathogenic0.000049
25. c.337-2A>T essential splice site 2Pathogenic0.000000
26. c.2489+1G>A essential splice site 8Pathogenic0.000024
27. c.2509delA p.Ser837ValfsX94frameshift 1Pathogenic0.000000
28. c.1125_1132del p.Phe376Alafs*8frameshift 1Pathogenic0.000000
29. c.1892delinsTCC p.Tyr631Phefs*26frameshift 1Pathogenic0.000000
30. c.1917_1935dup p.Gly646*frameshift 1Pathogenic0.000000
31. c.215del p.Val72Glyfs*40frameshift 1Pathogenic0.000000
32. c.1255_1279dup p.Asn427Ilefs*7frameshift 1Likely Pathogenic0.000000
33. c.356dup p.Tyr119*frameshift 1Pathogenic0.000000
34. c.1171_1378del p.Val391Thrfs*6frameshift 1Likely Pathogenic0.000000
35. c.1101dup p.Ser368Ilefs*19frameshift 1Pathogenic0.000000
36. c.1748_1755dup p.Val587Thrfs*72frameshift 2Pathogenic0.000000
37. c.2197_2202delinsG p.His733Alafs*8frameshift 16Pathogenic0.000000
38. c.1901del p.Asn634Thrfs*22frameshift 2Pathogenic0.000000
39. c.148_151delACAG p.Thr50SerfsX61frameshift 2Pathogenic0.000000
40. c.1211dup p.Val406Serfs*4frameshift 1Pathogenic0.000000
41. c.314del p.Pro105Leufs*7frameshift 1Pathogenic0.000000
42. c.253_256delGAGT frameshift 1Pathogenic0.000000
43. c.1372_1375del p.Ile458Glnfs*7frameshift 1Pathogenic0.000000
44. c.1968del p.Glu657Serfs*27frameshift 1Pathogenic0.000000
45. c.968_975delinsGCCTTT p.Gln323Argfs*12frameshift 1Pathogenic0.000000

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.