SCN5A Variant A361G

Summary of observed carriers, functional annotations, and structural context for SCN5A A361G. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

8%

0/10 effective observations

Estimated BrS1 penetrance

25%

2/10 effective observations

Total carriers

0

0 BrS1 · 0 LQT3 · 0 unaffected

A361G 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 2 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 0.963 30 6

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 13 0 2

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 A361G.
Neighbour residue Distance (Å) Observed variants
364 5
277 13
271 11 L271V,
266 8 L266H,
276 11 L276Q, L276P,
363 6
348 14 P348A,
270 11 Q270K,
360 6
1627 15
396 12 V396A, V396L,
355 5 F355I, F355C,
1549 12
372 14
356 7 D356N,
1543 15 V1543L, V1543A, V1543L,
1542 14
361 0
904 13 W904X,
260 13
366 10
365 6
258 13 V258A,
354 7
1546 10 M1546T,
369 12 M369K,
1545 13
349 15 D349N,
267 10
1550 13
262 9 S262G,
357 6
272 9
274 12 G274C,
362 5
261 9
273 10
920 14
900 13
392 12
269 7
393 13
916 13
275 13 N275K, N275K,
264 10
912 14 Q912R,
259 14
347 12
1548 12 G1548K, E1548K,
351 12 G351D, G351S, G351V, G351C,
265 5 A265V,
374 15 W374G,
358 5
903 14 p.M903CfsX29,
367 10 R367C, R367L, R367H,
263 11 V263I,
359 5 A359T, p.A359PfsX12,
1547 13 V1547L, V1547L,
370 14 T370M,
381 13 c.1141-3C>A, c.1140+1G>A,
352 11 Y352C,
368 10
899 14
380 14
268 7 G268S,
377 11
257 14
353 9 T353I,
907 14