SCN5A Variant E436A

Summary of observed carriers, functional annotations, and structural context for SCN5A E436A. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

3%

0/10 effective observations

Estimated BrS1 penetrance

19%

1/10 effective observations

Total carriers

0

0 BrS1 · 0 LQT3 · 0 unaffected

E436A has not been reported in gnomAD. This residue resides in a Mild_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 (%)
NA NA NA 0.512 23 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 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 E436A.
Neighbour residue Distance (Å) Observed variants
421 15
422 14
423 14
424 13 I424M,
425 13 A425P, A425T,
426 12
427 11
428 11 E428K,
429 10 p.E429del, E429K,
430 9 K430E,
431 8
432 8
433 7 R433H, R433S, R433C,
434 5
435 4
436 0
437 4 A437V,
438 5 M438L, M438T, M438L,
439 7 E439K, E439V,
440 8
441 8 L441F,
442 9
443 10
444 11 E444fsX14,
445 11 H445Q, H445Q, H445Y, H445D,
446 12 E446K,
447 13 A447G, c.1339-24G>A, c.1338+2T>A, A447S
448 13
449 14 T449A, Y449C,
450 14
451 15