2.7.1.17	4	-	inactivation, only partially reversible by incubation at 37°C	641637	
2.7.1.17	10	50	more than 50% of the optimum activity between 10°C and 50°C	676616	
2.7.1.17	53	-	5 min, 66%, 60%, 50%, 30% or 26% loss of activity at pH 8, pH 7, pH 6.2, pH 5.7 and pH 5.4, respectively	645053	
2.7.1.17	60	-	5 min, inactivation at pH 5.4	645053	
2.7.1.17	60	-	degradation constants at 0.1 and 0.01 g/l xylulokinase at 60°C are 0.20/h and 0.35/h, respectively. The presence of 2 mM xylulose enhances the thermostability of 0.01 g/l xylulokinase, increasing degradation constants to 0.29/h	748345	
2.7.1.17	65	-	30 min, Tris buffer, stable up to	645059	
2.7.1.17	70	-	30 min, 50% loss of activity	645059	
2.7.1.17	75	-	8 mM xylulose, 55% loss of activity after 30 min, 15% loss of activity after 5 min	645059