SCN5A Variant E417A

Summary of observed carriers, functional annotations, and structural context for SCN5A E417A. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

12%

0/10 effective observations

Estimated BrS1 penetrance

17%

1/10 effective observations

Total carriers

0

0 BrS1 · 0 LQT3 · 0 unaffected

E417A has not been reported in gnomAD. This residue resides in a Mild_Hotspot region for Brugada syndrome and a Mild_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 (%)
NA NA NA 0.789 17 12

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 0 0 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 E417A.
Neighbour residue Distance (Å) Observed variants
414 7 M414V,
939 9 L939F,
937 10
1778 15
1773 13
842 15
249 13 K249X,
943 11 S943N,
1777 14 V1777L, V1777L, V1777M,
418 6 E418K,
409 12 L409V, L409P,
417 0
934 14
933 11
1471 13
246 12
935 12 L935P,
1779 12 T1779M,
412 10 V412D,
1470 13
245 12 Q245K,
1776 10
415 7 A415T,
940 7 S940N,
420 5
938 12
1474 14
241 12
942 13
419 7 Q419X,
423 10
1772 12 L1772V,
239 12 I239V, I239V ,
410 11 A410V,
1780 11 E1780G,
242 10 A242D,
416 5 Y416C,
413 6 A413E, A413T,
941 11 S941F, S941N,
1783 14
936 8
238 10
838 14
422 9
1467 14
1775 13 p.F1775LfsX15, F1775V,
421 5
411 11 V411M,
243 14
932 14
1489 13 E1489D, E1489D,