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SCN5A Variant S1925F

Summary of observed carriers, functional annotations, and structural context for SCN5A S1925F. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

1%

0/11 effective observations

Estimated BrS1 penetrance

11%

1/11 effective observations

Total carriers

1

0 BrS1 · 0 LQT3 · 1 unaffected

S1925F 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 (%)
-3.85 0.987 -2.34 0.898 5 0

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 S1925F.
Neighbour residue Distance (Å) Observed variants
1910 15 R1910K,
1911 14
1912 14
1913 13 R1913C, R1913H, R1913S,
1914 13 R1914G,
1915 12 H1915P, H1915Y, H1915Q, H1915N,
1916 11
1917 11
1918 10
1919 9 R1919H, R1919C
1920 8 S1920C,
1921 8
1922 7 K1922N, K1922R,
1923 5 H1923D, H1923Y,
1924 4 A1924T,
1925 0 p.S1925CfsX20, S1925F,
1926 4
1927 5 L1927P,
1928 7 F1928V,
1929 8 R1929H, R1929C,
1930 8 Q1930H,
1931 9
1932 10 A1932V,
1933 11 G1933D, G1933A, G1933V,
1934 11
1935 12 G1935S,
1936 13
1937 13 S1937A,
1938 14 E1938K, E1938X,
1939 14 p.E1939_E1943del,
1940 15