SCN5A Variant D1610G

Summary of observed carriers, functional annotations, and structural context for SCN5A D1610G. Data combine curated literature, international cohorts, and gnomAD observations.

Estimated LQT3 penetrance

7%

0/11 effective observations

Estimated BrS1 penetrance

11%

1/11 effective observations

Total carriers

1

0 BrS1 · 0 LQT3 · 1 unaffected

D1610G is present in 1 alleles in gnomAD. This residue resides in a Non_Hotspot region for Brugada syndrome and a Mild_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 (%)
-3.78 0.007 -1.53 0.813 8 13

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 D1610G.
Neighbour residue Distance (Å) Observed variants
1606 10 T1606I,
1610 0 D1610G,
1612 6
1615 10 Y1615X,
1605 7 c.4813+2_4813+5dupTGGG, c.4813+3_4813+6dupGGGT, c.4813+5insTGGG, G1605C, G1605D,
1611 4 I1611V,
1616 7
1607 10
1620 15 T1620K, T1620M
1617 9 p.F1617del,
1608 7
1604 8 c.4810+3_4810+6dupGGGT, V1604M,
1602 13
1622 13
1618 10
1614 10
1601 12 L1601H,
1609 4 S1609W, S1609L,
1603 12 I1603F,
1619 11 P1619Q, P1619L, c.4856delC,
1613 5 Q1613L, Q1613H, Q1613H,