SCN5A Variant S357F

Summary of observed carriers, functional annotations, and structural context for SCN5A S357F. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

10%

0/10 effective observations

Estimated BrS1 penetrance

40%

3/10 effective observations

Total carriers

0

0 BrS1 · 0 LQT3 · 0 unaffected

S357F has not been reported in gnomAD. This residue resides in a Hotspot region for Brugada syndrome and a Non_Hotspot region for LQT3.

Variant features alone are equivalent to phenotyping 3 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 0.937 56 9

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 12 0 3

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 S357F.
Neighbour residue Distance (Å) Observed variants
364 11
277 11
271 13 L271V,
266 10 L266H,
276 12 L276P, L276Q,
363 10
1544 14 T1544P,
348 14 P348A,
270 11 Q270K,
360 6
1552 11 Q1552L, Q1552R,
355 8 F355C, F355I,
1549 6
1556 14
356 4 D356N,
1543 13 V1543L, V1543A, V1543L,
1542 15
361 6
904 14 W904X,
343 15
365 12
354 7
1546 9 M1546T,
1545 12
267 13
1550 9
262 13 S262G,
357 0
272 12
274 11 G274C,
362 10
261 14
273 8
1553 15 S1553R, S1553R, S1553R,
269 7
345 15
916 14
275 13 N275K, N275K,
264 15
912 13 Q912R,
347 12
1548 9 E1548K, G1548K,
351 11 G351C, G351S, G351D, G351V
265 9 A265V,
358 6
1551 12 D1551N, D1551Y,
263 15 V263I,
346 14 E346D, E346X, E346D, E346K, E346G,
359 5 p.A359PfsX12, A359T,
1547 9 V1547L, V1547L,
352 10 Y352C,
268 10 G268S,
353 11 T353I,
907 15