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SCN5A Variant R1914G

Summary of observed carriers, functional annotations, and structural context for SCN5A R1914G. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

0%

0/13 effective observations

Estimated BrS1 penetrance

9%

1/13 effective observations

Total carriers

3

0 BrS1 · 0 LQT3 · 3 unaffected

R1914G is present in 3 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 1 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 (%)
-2.41 0.219 -1.67 0.732 4 2

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 3 3 0 0
Variant features alone 15 14 0 1

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 R1914G.
Neighbour residue Distance (Å) Observed variants
1899 15
1900 14
1901 14 E1901K, E1901Q,
1902 13 E1902A,
1903 13 V1903M,
1904 12 S1904L,
1905 11
1906 11 M1906V, M1906T,
1907 10
1908 9 I1908V,
1909 8 Q1909R,
1910 8 R1910K,
1911 7
1912 5
1913 4 R1913C, R1913H, R1913S,
1914 0 R1914G,
1915 4 H1915P, H1915Y, H1915Q, H1915N,
1916 5
1917 7
1918 8
1919 8 R1919H, R1919C
1920 9 S1920C,
1921 10
1922 11 K1922N, K1922R,
1923 11 H1923D, H1923Y,
1924 12 A1924T,
1925 13 p.S1925CfsX20, S1925F,
1926 13
1927 14 L1927P,
1928 14 F1928V,
1929 15 R1929H, R1929C,