MYH7 : c.4411C>T

Variant Details

Variant (CDS)Variant (protein)Variant Type Variant EffectGenomic Location (GRCh37)ExAC Frequency
c.4411C>Tp.Q1471Xsubstitutionnonsense chr14:23886470 (reverse strand)0.000000

Effect in Cardiac Disease

This variant is considered a rare variant and is not detected in the ExAC population database (>60,000 samples).


There is no significant excess of rare MYH7 Truncating variants in HCM (details).

OMGL: Detected in 0 / 3200 HCM patients.

LMM:   Detected in 0 / 2912 HCM patients.


There is no significant excess of rare MYH7 Truncating variants in DCM (details).

OMGL: Detected in 0 / 559 DCM patients.

LMM:   Detected in 1 / 756 DCM patients - classified as VUS favour pathogenic.

For more information on the clinical significance of this variant, please see the ClinVar entry.

Detection in Population Databases

This variant has not been detected in the ExAC Aggregation Consortium (ExAC) database (>60,000 samples), the 1000 Genomes (1KG) database (2,500 samples) or the Exome Sequencing Project (ESP) database (6,500 samples).

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 ENST00000355349 LRG_384t1NM_000257.2
Protein ENSP00000347507 LRG_384p1P12883


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.