Table 1.

The documented disease associations and gating property impacts of R1, R2, and R3 gating-charge mutations of VSDI and VSDII

Mutation residue ID in Nav1.5Disease-associated phenotypes from Nav1.5 mutationsaGating properties for Nav1.5References
VSDI R1 R219 No disease association V1/2act: NCb
V1/2inact: NCb
τrec: NCb 
Chen et al. (1996), Gosselin-Badaroudine et al. (2012b), Moreau et al. (2018)  
H/P PFHB1A, LQT3, CMD1E, and BRGDA1 Iω: ↑
V1/2act: →
V1/2inact: ← 
R2 R222 CMD1E, RWS, LQT3, and BRGDA1 IMax: ↑
Iω: ↑
V1/2act: ←
V1/2inact: ← 
Daniel et al. (2019), Laurent et al. (2012), Mann et al. (2012), Moreau et al. (2015b), Nair et al. (2012)  
R3 R225 LQT3 V1/2act: →
V1/2inact: → 
Beckermann et al. (2014), Chen et al. (1996), Moreau et al. (2015a), (2015b), Strege et al. (2018)  
W/P PFHB1A, BRGDA1, and CIAT IMax: ↑/↓c
Ip: ↑
Iω: ↑
V1/2act: ←/→c
τrec: ↑/↓c 
VSDII R1 R808 No disease association V1/2act: →
V1/2inact: →
τrec: ↓ 
Chen et al. (1996), Glazer et al. (2020)  
H/C BRGDA1 and RWS IMax: ↓
V1/2inact: ←
τrec: ↓ 
R2 R811 BRGDA1 IMax: ↓
V1/2inact: ←
τrec:↓ 
Calloe et al. (2013)  
R3 R814 BRGDA1 Ip: ↑
V1/2inact: ← 
Chen et al. (1996), Glazer et al. (2020), Kapplinger et al. (2010), Moreau et al. (2015a), Nguyen et al. (2008)  
CMD1E Iω: ↑
V1/2act: ←/→c
τrec: ↓ 

→: right-shifted, ←: left-shifted, ↑: increase, ↓: decrease.

PFHB1A: progressive familial heart block, type 1A, LQT3: long QT syndrome 3, CMD1E: dilated cardiomyopathy 1E, BRGDA1: Brugada syndrome, and RWS: Romano–Ward syndrome.

a

Disease names are reported as OMIM IDs.

b

NC: indicates no significant change.

c

Indicates a discrepancy between multiple mutations or references for the same gating property.

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