SCN5A Variant R517S

Summary of observed carriers, functional annotations, and structural context for SCN5A R517S. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

2%

0/11 effective observations

Estimated BrS1 penetrance

16%

1/11 effective observations

Total carriers

1

0 BrS1 · 0 LQT3 · 1 unaffected

R517S is present in 1 alleles 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 0.309 0.32 0.507 17 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 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 R517S.
Neighbour residue Distance (Å) Observed variants
502 15
503 14 P503S,
504 14 R504T,
505 13 A505E,
506 13 M506K,
507 12 p.N507_L515dup,
508 11
509 11
510 10
511 9
512 8 T512I,
513 8 R513P, c.1537delC, R513H, R513C,
514 7 G514C,
515 5
516 4
517 0 R517S, R517S,
518 4
519 5 S519F,
520 7 M520R, M520V,
521 8 K521E, c.1562delA,
522 8 P522S,
523 9 R523C, R523S, R523H,
524 10 S524Y, c.1570_1571insG,
525 11 S525G,
526 11 R526H, R526C,
527 12 G527R, G527R,
528 13 S528R, S528R, S528R,
529 13
530 14 F530V, F530S,
531 14 T531A, T531I,
532 15 F532L, F532C, F532L, F532L,