SCN5A Variant S528R

Summary of observed carriers, functional annotations, and structural context for SCN5A S528R. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

4%

0/12 effective observations

Estimated BrS1 penetrance

9%

1/12 effective observations

Total carriers

2

0 BrS1 · 0 LQT3 · 2 unaffected

S528R is present in 2 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 (%)
-4.77 0.979 -1.84 0.674 5 2

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 – 2 2 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 S528R.
Neighbour residue Distance (Å) Observed variants
513 15 R513P, c.1537delC, R513H, R513C,
514 14 G514C,
515 14
516 13
517 13 R517S, R517S,
518 12
519 11 S519F,
520 11 M520R, M520V,
521 10 K521E, c.1562delA,
522 9 P522S,
523 8 R523C, R523S, R523H,
524 8 S524Y, c.1570_1571insG,
525 7 S525G,
526 5 R526H, R526C,
527 4 G527R, G527R,
528 0 S528R, S528R, S528R,
529 4
530 5 F530V, F530S,
531 7 T531A, T531I,
532 8 F532L, F532C, F532L, F532L,
533 8 R533H, R533S, R533C,
534 9
535 10 R535Q, R535G, R535X
536 11 D536H,
537 11
538 12 G538D,
539 13
540 13
541 14
542 14
543 15 F543L, F543L, F543L,