3.5.4.5	2'-deoxycytidine + H2O = 2'-deoxyuridine + NH3	(2)	-	
3.5.4.5	cytidine + H2O = uridine + NH3	(1)	-	
3.5.4.5	cytidine + H2O = uridine + NH3	quantum chemical study on mechanism, the extra water molecule from solvent may support catalysis. Proposal of catalytic cycle	669610