TABLE 2.

Comparison of the reported V_max values of human erythrocyte enzymes with those included in the model

All values are in mmol(liter of erythrocytes)⁻¹ h⁻¹ ± S.E. where available. GSGSase, glutathione synthetase; γ-GCTase, γ-glutamylcyclotransferase; NACase, N-acetylcysteine deacetylase; ALATase, alanine aminotransferase; GLNase, glutaminase.

Enzyme	Reported values	Model values	Reference No.
GCL	5.1	14.0	74
	27.8–33.7		58
	122 ± 6.3		75
GSHSase	5.1	17.5	11
	4.50–9.91		58
	20.4 ± 1.6		75
γ-GCTase	2.24	2.24	11
GSSGR	123 ± 22	132	12
NACase	0.110 ± 0.003	0.126	45
ALATase	0.917 ± 0.290a	0.861
GLNase	5.08a	5.12	76
	10.5

^a V_max values for alanine aminotransferase and glutaminase were measured using ¹H NMR spectroscopy to follow the reactions in concentrated hemolysates (results not shown).