MYBPC3 non-truncating variants in DCM cohorts


The table below lists the 29 rare (MAF<0.0001 in ExAC) non-truncating MYBPC3 variants identified in a cohort of 1161 DCM patients (405 patients from OMGL, 756 patients from LMM). When this rare variant frequency of 0.02498 is compared with a background population rate of 0.01884, there is a case excess of 0.00614, although this is not statistically significant for non-truncating MYBPC3 variants in DCM (p=0.1278).


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 (1161)OMGL classLMM class ExAC frequency
1. c.148A>G p.S50Gmissense 2VUS (1)VUS (1)0.000038
2. c.994G>A p.E332Kmissense 2VUS (2)0.000009
3. c.529C>T p.R177Cmissense 2VUS (2)0.000062
4. c.206G>A p.R69Qmissense 1Likely Benign (1)0.000024
5. c.1373G>A p.R458Hmissense 1VUS (1)0.000044
6. c.2671C>T p.R891Wmissense 1VUS (1)0.000031
7. c.2909G>A p.R970Qmissense 1VUS (1)0.000032
8. c.713G>A p.R238Hmissense 1VUS (1)0.000074
9. c.1724G>T p.G575Vmissense 1VUS (1)0.000000
10. c.166G>A p.G56Smissense 1VUS (1)0.000015
11. c.121C>T p.R41Cmissense 1VUS (1)0.000034
12. c.3677G>T p.R1226Lmissense 1VUS (1)0.000000
13. c.1123G>A p.V375Mmissense 1VUS (1)0.000009
14. c.1976T>C p.I659Tmissense 1VUS favour pathogenic (1)0.000000
15. c.3005G>A p.R1002Qmissense 1VUS (1)0.000046
16. c.2429G>A p.R810Hmissense 1VUS (1)0.000033
17. c.745T>C p.C249Rmissense 1VUS (1)0.000010
18. c.596T>G p.L199Rmissense 1VUS (1)0.000000
19. c.1246G>A p.G416Smissense 1Likely Benign (1)0.000028
20. c.3154A>G p.M1052Vmissense 1VUS (1)0.000033
21. c.818G>A p.R273Hmissense 1VUS (1)0.000042
22. c.1422G>C p.E474Dmissense 1VUS (1)0.000000
23. c.239delCinsGAGG inframe 1VUS favour pathogenic (1)0.000000
24. c.2641G>A p.V881Imissense 1VUS (1)0.000018
25. c.2300A>G p.K767Rmissense 1VUS (1)0.000016
26. c.917G>A p.R306Qmissense 1VUS (1)0.000036

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.