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{{enzyme
| Name = alpha,alpha-trehalose-phosphate synthase (GDP-forming)
| EC_number = 2.4.1.36
| CAS_number = 37257-32-2
| IUBMB_EC_number = 2/4/1/36
| GO_code = 0047260
| image = 
| width = 
| caption = 
}}
In [[enzymology]], an '''alpha,alpha-trehalose-phosphate synthase (GDP-forming)''' ({{EC number|2.4.1.36}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:GDP-glucose + glucose 6-phosphate <math>\rightleftharpoons</math> GDP + alpha,alpha-trehalose 6-phosphate

Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[GDP-glucose]] and [[glucose 6-phosphate]], whereas its two [[product (chemistry)|products]] are [[guanosine diphosphate|GDP]] and [[alpha,alpha'-trehalose 6-phosphate]].

This enzyme belongs to the family of [[glycosyltransferase]]s, specifically the hexosyltransferases.  The systematic name of this enzyme class is '''GDP-glucose:D-glucose-6-phosphate 1-alpha-D-glucosyltransferase'''. Other names in common use include '''GDP-glucose-glucose-phosphate glucosyltransferase''', '''guanosine diphosphoglucose-glucose phosphate glucosyltransferase''', and '''trehalose phosphate synthase (GDP-forming)'''.  

== References ==
{{reflist|1}}
* {{cite journal | author = Elbein AD | date = 1967 | title = Carbohydrate metabolism in [[Streptomyces hygroscopicus]]. I. Enzymatic synthesis of trehalose phosphate from guanosine diphosphate D-glucose-14C | journal = J. Biol. Chem.  | volume = 242 | pages = 403&ndash;6  | pmid = 6022837 | issue = 3 }}

[[Category:EC 2.4.1]]
[[Category:Enzymes of unknown structure]]

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