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SCN5A Variant M1906V

Summary of observed carriers, functional annotations, and structural context for SCN5A M1906V. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

1%

0/11 effective observations

Estimated BrS1 penetrance

3%

0/11 effective observations

Total carriers

1

0 BrS1 · 0 LQT3 · 1 unaffected

M1906V is present in 1 alleles in gnomAD. This residue resides in a Non_Hotspot region for Brugada syndrome and a Non_Hotspot region for LQT3.

Variant features alone are equivalent to phenotyping 0 individuals for Brugada syndrome and 0 individuals for LQT3.

In silico predictors

Variant-level computational predictors.
PROVEAN PolyPhen-2 BLAST-PSSM REVEL Penetrance Density BrS (%) Penetrance Density LQT3 (%)
1.09 0 0.09 0.328 1 3

PROVEAN scores below -2 suggest deleterious impact. REVEL scores above 0.5–0.75 are often interpreted as likely pathogenic. PolyPhen-2 scores above 0.85 are typically pathogenic. Penetrance density summarises neighbouring residue risk (Kroncke et al. 2019).

Reported carrier data

Observed carriers by publication or cohort.
Source Year Carriers Unaffected LQT3 BrS1 Other Other Disease
Literature, cohort, and gnomAD 1 1 0 0
Variant features alone 15 15 0 0

Totals may differ from individual publications due to duplicate patients removed during curation.

Nearby variants

Neighbouring residues within 15 Ångström provide structural context. Variants listed in the right-most column have been observed clinically or in gnomAD.

Previously observed variants near M1906V.
Neighbour residue Distance (Å) Observed variants
1891 15
1892 14
1893 14 c.5676delC,
1894 13
1895 13 T1895I,
1896 12 p.L1896PfsX47, L1896P,
1897 11 R1897Y, R1897W, R1897Q,
1898 11 R1898H, R1898C,
1899 10
1900 9
1901 8 E1901K, E1901Q,
1902 8 E1902A,
1903 7 V1903M,
1904 5 S1904L,
1905 4
1906 0 M1906V, M1906T,
1907 4
1908 5 I1908V,
1909 7 Q1909R,
1910 8 R1910K,
1911 8
1912 9
1913 10 R1913C, R1913H, R1913S,
1914 11 R1914G,
1915 11 H1915P, H1915Y, H1915Q, H1915N,
1916 12
1917 13
1918 13
1919 14 R1919H, R1919C
1920 14 S1920C,
1921 15