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[Preprint]. 2025 Aug 22:2025.08.18.670886. [Version 1] doi: 10.1101/2025.08.18.670886

Table 4.

Definition of model parameters that are randomly altered to introduce variability into the population of models.

Model Parameters used in Sensitivity Analysis
G Na Na+ current, maximum conductance
G K1 Inward rectifying K+ current, maximum conductance
G Kur Ultra-rapid rectifying K+ current, maximum conductance
G KAch Acetylcholine-sensitive K+ current, maximum conductance
G to,f Transient outward K+ current, fast component, maximum conductance
CSQ Calsequestrin expression
V NaK Na+/K+ ATPase current, maximum velocity
G KCa SK current, maximum conductance
G NaL Late Na+ current, maximum conductance
G Kr Rapid delayed rectifying K+ current, maximum conductance
G Ks Slow delayed rectifying K+ current, maximum conductance
G K2P K2P current, maximum conductance
L-Type K1o L-type Ca2+ current inactivation rate constant
CaMKII-p CaMKII-phosphorylation of L-type Ca2+ current
G CaL L-type Ca2+ current, maximum conductance
V NCX Na+/Ca2+ exchange current, maximum velocity
Kmf SERCA sensitivity to [Ca2+]Cyto
RyR EC50 Concentration of Ca2+ that induces half maximum Po
V RyR Ryanodine receptor flux, maximum velocity
K leak Ryanodine receptor Ca2+ leak, maximum velocity
KoCa Activation rate constant for RyR
KiCa Inactivation rate constant for RyR
Kim Transition rate constant for RyR
Kom Transition rate constant for RyR
G CaB Background Ca2+ current, maximum conductance
G ClB Background Cl current, maximum conductance
G ClCa Ca2+-activated Cl current, maximum conductance
G NaB Background Na+ current, maximum conductance
G Kp Plateau K+ current, maximum conductance
V SERCA Sarcoplasmic reticulum Ca2+ ATPase flux, maximum velocity
V PMCA Plasma membrane Ca2+ ATPase current, maximum velocity
Ca2+ Buffer Cleft Ca2+ buffering strength in the cleft space
Ca2+ Buffer Cytosol Ca2+ buffering strength in the cytosolic space