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SCN5A Variant F1928V

Summary of observed carriers, functional annotations, and structural context for SCN5A F1928V. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

4%

0/11 effective observations

Estimated BrS1 penetrance

8%

0/11 effective observations

Total carriers

1

0 BrS1 · 0 LQT3 · 1 unaffected

F1928V 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 (%)
-2.84 0.001 0.01 0.38 3 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 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 F1928V.
Neighbour residue Distance (Å) Observed variants
1913 15 R1913C, R1913H, R1913S,
1914 14 R1914G,
1915 14 H1915Y, H1915P, H1915Q, H1915N,
1916 13
1917 13
1918 12
1919 11 R1919C, R1919H,
1920 11 S1920C,
1921 10
1922 9 K1922N, K1922R,
1923 8 H1923Y, H1923D,
1924 8 A1924T,
1925 7 p.S1925CfsX20, S1925F,
1926 5
1927 4 L1927P,
1928 0 F1928V,
1929 4 R1929C, R1929H,
1930 5 Q1930H,
1931 7
1932 8 A1932V,
1933 8 G1933D, G1933A, G1933V,
1934 9
1935 10 G1935S
1936 11
1937 11 S1937A,
1938 12 E1938X, E1938K,
1939 13 p.E1939_E1943del,
1940 13
1941 14
1942 14 P1942S, P1942H,
1943 15