SCN5A Variant T1056A
Summary of observed carriers, functional annotations, and structural context for SCN5A T1056A. Data combine curated literature, international cohorts, and gnomAD observations.
Estimated LQT3 penetrance
1%
0/11 effective observations
Estimated BrS1 penetrance
18%
1/11 effective observations
Total carriers
1
0 BrS1 · 0 LQT3 · 1 unaffected
Variant features alone are equivalent to phenotyping 1 individuals for Brugada syndrome and 0 individuals for LQT3.
In silico predictors
| PROVEAN | PolyPhen-2 | BLAST-PSSM | REVEL | Penetrance Density BrS (%) | Penetrance Density LQT3 (%) |
|---|---|---|---|---|---|
| -0.66 | 0.625 | -0.6 | 0.482 | 23 | 0 |
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
| 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.
| Neighbour residue | Distance (Å) | Observed variants |
|---|---|---|
| 1041 | 15 | D1041G, D1041N, |
| 1042 | 14 | |
| 1043 | 14 | E1043K, |
| 1044 | 13 | |
| 1045 | 13 | V1045M, |
| 1046 | 12 | |
| 1047 | 11 | c.3140_3141dupTG, |
| 1048 | 11 | p.P1048SfsX96, c.3142_3143insTG, P1048S, |
| 1049 | 10 | |
| 1050 | 9 | p.A1050CfsX9, A1050T, p.A1050DfsX9, |
| 1051 | 8 | V1051A, |
| 1052 | 8 | A1052D, p.A1052CfsX7 |
| 1053 | 7 | E1053K, |
| 1054 | 5 | |
| 1055 | 4 | D1055G, |
| 1056 | 0 | T1056A, |
| 1057 | 4 | |
| 1058 | 5 | c.3171_3172delTGinsA, |
| 1059 | 7 | Q1059X, |
| 1060 | 8 | |
| 1061 | 8 | E1061D, E1061D, |
| 1062 | 9 | D1062H, |
| 1063 | 10 | E1063G, |
| 1064 | 11 | p.E1064del, |
| 1065 | 11 | |
| 1066 | 12 | S1066G, |
| 1067 | 13 | L1067R, |
| 1068 | 13 | G1068A, G1068D, |
| 1069 | 14 | T1069M, |
| 1070 | 14 | |
| 1071 | 15 | E1071K, p.E1071GfsX76, |