View source for Biology:Luteolin-7-O-diglucuronide 4'-O-glucuronosyltransferase

{{Short description|Class of enzymes}}
{{infobox enzyme
| Name       = luteolin-7-O-diglucuronide 4'-O-glucuronosyltransferase
| EC_number  = 2.4.1.191
| CAS_number = 115490-50-1
| GO_code    = 0047247
| image      =
| width      = 
| caption    =  
}}
In [[Biology:Enzymology|enzymology]], a '''luteolin-7-O-diglucuronide 4'-O-glucuronosyltransferase''' ({{EC number|2.4.1.191}}) is an [[Biology:Enzyme|enzyme]] that [[Chemistry:Catalysis|catalyzes]] the [[Chemistry:Chemical reaction|chemical reaction]]

:UDP-glucuronate + luteolin 7-O-beta-D-diglucuronide <math>\rightleftharpoons</math> UDP + luteolin 7-O-[beta-D-glucuronosyl-(1->2)-beta-D-glucuronide]-4'-O-beta-D- glucuronide

Thus, the two [[Biology:Substrate (biochemistry)|substrates]] of this enzyme are UDP-glucuronate and luteolin 7-O-beta-D-diglucuronide, whereas its 4 [[Chemistry:Product|products]] are [[Chemistry:Uridine diphosphate|UDP]], [[Chemistry:Luteolin|luteolin]], 7-O-[beta-D-glucuronosyl-(1->2)-beta-D-glucuronide]-4'-O-beta-D-, and [[Chemistry:Glucuronide|glucuronide]].

This enzyme belongs to the family of [[Biology:Glycosyltransferase|glycosyltransferase]]s, specifically the hexosyltransferases.  The [[Biology:List of enzymes|systematic name]] of this enzyme class is '''UDP-glucuronate:luteolin-7-O-beta-D-diglucuronide 4'-O-glucuronosyltransferase'''. Other names in common use include '''uridine diphosphoglucuronate-luteolin 7-O-diglucuronide''', '''glucuronosyltransferase''', '''UDP-glucuronate:luteolin 7-O-diglucuronide-glucuronosyltransferase''', '''UDPglucuronate:luteolin''', '''7-O-diglucuronide-4'-O-glucuronosyl-transferase''', and '''LDT'''.

==References==
{{reflist|1}}
* {{cite journal | vauthors = Schulz M, Weissenbock G | date = 1988 | title = 3 specific UDP-glucuronate-flavone-glucuronosyl-transferases from primary leaves of Secale cereale | journal = Phytochemistry  | volume = 27 | issue = 5 | pages = 1261&ndash;1267 | doi = 10.1016/0031-9422(88)80175-4 }}

{{Glycosyltransferases}}
{{Enzymes}}

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



{{Sourceattribution|Luteolin-7-O-diglucuronide 4'-O-glucuronosyltransferase}}