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SCN5A Variant H1915P

Summary of observed carriers, functional annotations, and structural context for SCN5A H1915P. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

4%

0/11 effective observations

Estimated BrS1 penetrance

11%

1/11 effective observations

Total carriers

1

0 BrS1 · 0 LQT3 · 1 unaffected

H1915P 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 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 (%)
-7.05 0.999 -3.89 0.932 1 1

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 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 H1915P.
Neighbour residue Distance (Å) Observed variants
1900 15
1901 14 E1901K, E1901Q,
1902 14 E1902A,
1903 13 V1903M,
1904 13 S1904L,
1905 12
1906 11 M1906T, M1906V,
1907 11
1908 10 I1908V,
1909 9 Q1909R,
1910 8 R1910K,
1911 8
1912 7
1913 5 R1913S, R1913H, R1913C,
1914 4 R1914G,
1915 0 H1915P, H1915Y, H1915N, H1915Q,
1916 4
1917 5
1918 7
1919 8 R1919C, R1919H,
1920 8 S1920C,
1921 9
1922 10 K1922R, K1922N,
1923 11 H1923D, H1923Y,
1924 11 A1924T,
1925 12 p.S1925CfsX20, S1925F,
1926 13
1927 13 L1927P,
1928 14 F1928V,
1929 14 R1929C, R1929H,
1930 15 Q1930H,