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{{enzyme
| Name = cyanamide hydratase
| EC_number = 4.2.1.69
| CAS_number = 50812-20-9
| IUBMB_EC_number = 4/2/1/69
| GO_code = 0018820
| image = 
| width = 
| caption = 
}}
In [[enzymology]], a '''cyanamide hydratase''' ({{EC number|4.2.1.69}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:urea <math>\rightleftharpoons</math> cyanamide + H<sub>2</sub>O

Hence, this enzyme has one [[substrate (biochemistry)|substrate]], [[urea]], and two [[product (chemistry)|products]], [[cyanamide]] and [[water|H<sub>2</sub>O]].

This enzyme belongs to the family of [[lyase]]s, specifically the hydro-lyases, which cleave carbon-oxygen bonds.  The systematic name of this enzyme class is '''urea hydro-lyase (cyanamide-forming)'''. This enzyme is also called '''urea hydro-lyase'''.  This enzyme participates in [[atrazine degradation]].  

==References==
{{reflist|1}}
* {{cite journal | author = Stransky H and Amberger A | date = 1973 | title = Isolation and properties of a cyanamide hydratase (EC 4.2.1) from Myrothecium verrucaria | journal = Z. Pflanzenphysiol.  | volume = 70 | pages = 74&ndash;87 }}

{{4.2-enzyme-stub}}

[[Category:EC 4.2.1]]
[[Category:Enzymes of unknown structure]]