LQTS	Long QT syndrome
IKs	The slowly activating delayed-rectifier K+ current
Kv	Voltage-gated potassium channel
Nav	Voltage-gated sodium channel
Cav	Voltage-gated calcium channel
VSD	Voltage-sensing domain
Na+	Sodium ions
K+	Potassium ions
Ca2+	Calcium ions
PD	Pore domain
PUFA	Polyunsaturated fatty acid
ECG	Electrocardiogram
SQTS	Short QT syndrome
IKr	The rapidly activating delayed-rectifier K+ current
APD	Action potential duration
Rb+	Rubidium ions
CaM	Calmodulin
PIP2	Phosphatidylinositol 4,5-bisphosphate
VCF	Voltage-clamp fluorometry
Cryo-EM	Cryo-electron microscopy
NMR	Nuclear magnetic resonance
HCN	Hyperpolarization-activated and cyclic nucleotide-gated channel
PKA	Protein kinase A
cAMP	Cyclic adenosine monophosphate
PP1	Protein phosphatase 1
LZ	Leucine zipper
Epac	Exchange protein directly activated by cAMP
ATP	Adenosine triphosphate
KATP	ATP-sensitive K channel
FRET	Fluorescence resonance energy transfer
MTX	Mallotoxin
PBA	Phenylboronic acid
N-AT	N-arachidonoyl taurine
EPA	5,8,11,14,17-eicosapentaenoic acid
TEA	Tetraethylammonium ions
CHO	Chinese hamster ovary
UCL2077	3-(triphenylmethylaminomethyl)pyridine
XE991	10,10-Bis(4-pyridinylmethyl)-9(10H)-anthracenone dihydrochloride
IKur	The ultrarapid delayed-rectifier K+ current
AF	Atrial fibrillation