2.7.2.8	2-Ketoglutarate	only if bound to the PII protein ATP complex	
2.7.2.8	ATP	maximum activity at 10 mM	
2.7.2.8	L-arginine	slight activation is observed at 1 mM L-arginine	
2.7.2.8	additional information	2-ketoglutarate shows no additive effect to the activation of PII protein	
2.7.2.8	PII protein	-	
2.7.2.8	PII protein	prevents inhibition by arginine