Table 2.

Parameter values of the computational model

Symbol Value Unit Description Equation no. Reference 
EGPXT 5.0 × 10−3 mM Mitochondrial concentration of GPx Cortassa et al., 2004  
Φ1 5.0 × 10−3 mM ms Constant for GPx activity Cortassa et al., 2004  
Φ2 0.75 mM ms Constant for GPx activity Cortassa et al., 2004  
KMGSSG 0.06 mM Km for oxidized GSH of GR Cortassa et al., 2004  
KMNADPH 0.015 mM Km for NADPH of GR Cortassa et al., 2004  
kGR1 0.025–0.005 ms−1 Rate constant of GR Cortassa et al., 2004  
EGRT 5.0 × 10−3 mM Mitochondrial concentration of GR Cortassa et al., 2004  
GT 3.0 mM Total mitochondrial pool of GSH Cortassa et al., 2004  
EPrxXT mM Intracellular concentration of Prx Cox et al., 2010  
ΦP1 3.83 mM2 ms Constant for Prx 3 activity Sztajer et al., 2001  
ΦP2 0.285 mM2 ms Constant for Prx 3 activity Sztajer et al., 2001  
KMTrxSS 0.05 mM Km for Trx(SS) of TrxR Pillay et al., 2009; Eckenroth et al., 2006  
KMTNADPH 0.012 mM Km for NADPH of TrxR Pillay et al., 2009; Eckenroth et al., 2006  
kTrxR1 0.022–0.009 ms−1 Rate constant of TrxR Pillay et al., 2009; Eckenroth et al., 2006  
ETrxRT 0.025 mM Mitochondrial concentration of TrxR Pillay et al., 2009  
kTxPx1 2.5 mM−1 ms−1 Rate constant of Prx Cox et al., 2010; Adimora et al., 2010  
KMTrx 0.1 mM Km for Trx(SH)2 of Prx Adimora et al., 2010  
KiTrxPx 0.01 mM−1 Inhibition constant of Prx activity by Trx(SH)2 Adimora et al., 2010  
TrxT 0.025 mM Total mitochondrial pool of Trx Cox et al., 2010  
PrxT 0.15 mM Total mitochondrial pool of Prx Cox et al., 2010  
k1 0.1 ms−1 Rate constant of H2O2 transport from mitochondria Adjusteda 
Symbol Value Unit Description Equation no. Reference 
EGPXT 5.0 × 10−3 mM Mitochondrial concentration of GPx Cortassa et al., 2004  
Φ1 5.0 × 10−3 mM ms Constant for GPx activity Cortassa et al., 2004  
Φ2 0.75 mM ms Constant for GPx activity Cortassa et al., 2004  
KMGSSG 0.06 mM Km for oxidized GSH of GR Cortassa et al., 2004  
KMNADPH 0.015 mM Km for NADPH of GR Cortassa et al., 2004  
kGR1 0.025–0.005 ms−1 Rate constant of GR Cortassa et al., 2004  
EGRT 5.0 × 10−3 mM Mitochondrial concentration of GR Cortassa et al., 2004  
GT 3.0 mM Total mitochondrial pool of GSH Cortassa et al., 2004  
EPrxXT mM Intracellular concentration of Prx Cox et al., 2010  
ΦP1 3.83 mM2 ms Constant for Prx 3 activity Sztajer et al., 2001  
ΦP2 0.285 mM2 ms Constant for Prx 3 activity Sztajer et al., 2001  
KMTrxSS 0.05 mM Km for Trx(SS) of TrxR Pillay et al., 2009; Eckenroth et al., 2006  
KMTNADPH 0.012 mM Km for NADPH of TrxR Pillay et al., 2009; Eckenroth et al., 2006  
kTrxR1 0.022–0.009 ms−1 Rate constant of TrxR Pillay et al., 2009; Eckenroth et al., 2006  
ETrxRT 0.025 mM Mitochondrial concentration of TrxR Pillay et al., 2009  
kTxPx1 2.5 mM−1 ms−1 Rate constant of Prx Cox et al., 2010; Adimora et al., 2010  
KMTrx 0.1 mM Km for Trx(SH)2 of Prx Adimora et al., 2010  
KiTrxPx 0.01 mM−1 Inhibition constant of Prx activity by Trx(SH)2 Adimora et al., 2010  
TrxT 0.025 mM Total mitochondrial pool of Trx Cox et al., 2010  
PrxT 0.15 mM Total mitochondrial pool of Prx Cox et al., 2010  
k1 0.1 ms−1 Rate constant of H2O2 transport from mitochondria Adjusteda 
a

This parameter (k1) was adjusted.

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