Table 7.

Deviation of the four-state model (Model 4) via six states. Two states can be eliminated, because they are unlikely due to a quick production of the Inhibitor.

Outputsignal	KinU	KinA	Activator	Inhibitor	State
‘Wait’	x			x	‘unattached’
‘Wait’	x		x	x	Unlikely, because Activator is quickly converted to Inhibitor
‘Go’	x		x		Unlikely, because Activator is quickly converted to Inhibitor
‘Wait’		x		x	‘attached’
‘Wait’		x	x	x	‘about to exit’
‘Go’		x	x		‘exit’