SCN5A Variant L935P

Summary of observed carriers, functional annotations, and structural context for SCN5A L935P. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

4%

0/11 effective observations

Estimated BrS1 penetrance

61%

6/11 effective observations

Total carriers

1

1 BrS1 · 0 LQT3 · 0 unaffected

L935P 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 5 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 (%)
-6.24 1 -4.76 0.996 83 5

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
20129283 2010 1 0 1 0
Literature, cohort, and gnomAD 1 0 0 1
Variant features alone 15 10 0 5

Totals may differ from individual publications due to duplicate patients removed during curation.

Functional data

Peak and late/persistent current values are relative to wild-type (100% indicates no change). V1/2 activation and inactivation denote the membrane potentials (mV) at which half-maximal current is achieved.

Published electrophysiology measurements.
PubMed ID Year Cell Type Peak Current (% WT) V1/2 Activation (mV) V1/2 Inactivation (mV) Late/Persistent Current (% WT)
20129283 2010

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 L935P.
Neighbour residue Distance (Å) Observed variants
414 13 M414V,
939 7 L939F,
896 14 C896S,
937 7
895 13 L895F,
1773 14
1765 10
839 12 L839P,
842 11
943 13 S943N,
1457 13
1455 13
1771 13 I1771T,
1461 11 T1461S,
926 12
1764 14 c.5290delG, V1764F,
409 7 L409V, L409P,
928 11 L928P,
417 12
934 5
1458 11 S1458Y,
933 7
1471 12
246 13
935 0 L935P,
412 9 V412D,
1470 9
1464 9 c.4389_4396delCCTCTTTA, L1464P,
927 10 N927K, N927S,
1466 7 c.4396_4397insG,
1776 15
1769 12
1766 15 M1766L, M1766V, M1766T,
415 13 A415T,
1768 10 I1768V,
940 10 S940N,
1468 11 V1468F, V1468A,
405 11
1462 10
938 6
840 15
942 10
420 14
843 13 T843A,
1456 15
930 9 c.2787+17_2787+18insACACACACACACACACACACACA, c.2788-6C>T,
1459 9 c.4376_4379delTCTT,
1772 10 L1772V,
1460 10 F1460L,
239 13 I239V , I239V,
1454 15
410 10 A410V,
242 13 A242D,
929 10
416 10 Y416C,
413 8 A413E, A413T,
408 11
941 11 S941F, S941N,
407 14
1337 15
846 13 L846R,
936 5
838 13
1465 11 p.F1465_L1480dup,
1760 14
1467 8
1775 15 p.F1775LfsX15, F1775V,
1761 14 L1761H, c.5280delG, L1761F,
1469 11 I1469V,
406 10 N406S, N406K,
411 12 V411M,
243 14
932 5
832 15
835 14 S835A, S835L,
931 7
1463 6 N1463Y,