Skip to main content
. 2012 Jun;139(6):479–491. doi: 10.1085/jgp.201210772

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 1 Cortassa et al., 2004
Φ1 5.0 × 10−3 mM ms Constant for GPx activity 1 Cortassa et al., 2004
Φ2 0.75 mM ms Constant for GPx activity 1 Cortassa et al., 2004
KMGSSG 0.06 mM Km for oxidized GSH of GR 2 Cortassa et al., 2004
KMNADPH 0.015 mM Km for NADPH of GR 2 Cortassa et al., 2004
kGR1 0.025–0.005 ms−1 Rate constant of GR 2 Cortassa et al., 2004
EGRT 5.0 × 10−3 mM Mitochondrial concentration of GR 2 Cortassa et al., 2004
GT 3.0 mM Total mitochondrial pool of GSH 6 Cortassa et al., 2004
EPrxXT 1 mM Intracellular concentration of Prx 3 Cox et al., 2010
ΦP1 3.83 mM2 ms Constant for Prx 3 activity 3 Sztajer et al., 2001
ΦP2 0.285 mM2 ms Constant for Prx 3 activity 3 Sztajer et al., 2001
KMTrxSS 0.05 mM Km for Trx(SS) of TrxR 4 Pillay et al., 2009; Eckenroth et al., 2006
KMTNADPH 0.012 mM Km for NADPH of TrxR 4 Pillay et al., 2009; Eckenroth et al., 2006
kTrxR1 0.022–0.009 ms−1 Rate constant of TrxR 4 Pillay et al., 2009; Eckenroth et al., 2006
ETrxRT 0.025 mM Mitochondrial concentration of TrxR 4 Pillay et al., 2009
kTxPx1 2.5 mM−1 ms−1 Rate constant of Prx 5 Cox et al., 2010; Adimora et al., 2010
KMTrx 0.1 mM Km for Trx(SH)2 of Prx 5 Adimora et al., 2010
KiTrxPx 0.01 mM−1 Inhibition constant of Prx activity by Trx(SH)2 5 Adimora et al., 2010
TrxT 0.025 mM Total mitochondrial pool of Trx 7 Cox et al., 2010
PrxT 0.15 mM Total mitochondrial pool of Prx 8 Cox et al., 2010
k1 0.1 ms−1 Rate constant of H2O2 transport from mitochondria 9 Adjusteda
a

This parameter (k1) was adjusted.