Table 2.

Reported values for the inhibition of glutamine synthetases by MSO

Source	Ki MSO (mM)	Km Glu (mM)	Km ATP (mM)	References
Human	1.19a	1.67a, 3.00b & 3.50b	1.80b & 2.8b	a This study & bListrom et al. (1997)
Ovine brain	0.210	2.70c & 2.50d	2.3d	cLogusch et al. (1989) & dPamiljans et al. (1962)
Canine long form	0.124	1.30	1.90	Shin et al. (2004)
Canine short form	0.067	1.10	1.30	Shin et al. (2004)
Various Plants	n.d.	~5 – 10	~0.3 – 1.3	Acaster et al. (1985)
Pea seed	0.200c	n.d.	2.00d	cWedler et al. (1976) & dKnight et al. (1988)
Pea leaf	0.161	n.d.	n.d.	Leason et al. (1982)
Spinach	0.100	n.d.	n.d.	Lea et al. (1989)
Yeast	n.d.	5.40	0.300	(Kim and Rhee 1987) Kim et al. (1987)
S. Typhimurium	n.d.	1.10e	0.580f	eLiaw et al. (1993) & fLiaw et al. (1994)
E. Coli	0.001g,h	3.00g,h, 5.50i	0.400i	gVillafranca et al. (1976), hWedler et al. (1976) & iAlibhai et al. (1994)