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2.4.2.10: orotate phosphoribosyltransferase

This is an abbreviated version!
For detailed information about orotate phosphoribosyltransferase, go to the full flat file.

Word Map on EC 2.4.2.10

Reaction

orotidine 5'-phosphate
+
diphosphate
=
Orotate
+
5-phospho-alpha-D-ribose 1-diphosphate

Synonyms

More, OMP synthase, OPRT, OPRTase, orotate phosphoribosyl pyrophosphate transferase, orotate phosphoribosyl transferase, orotate phosphoribosyltransferase, orotate PRTase, orotic acid phosphoribosyltransferase, orotidine 5'-monophosphate pyrophosphorylase, orotidine 5'-phosphate pyrophosphorylase, orotidine monophosphate pyrophosphorylase, orotidine phosphoribosyltransferase, orotidine-5'-phosphate pyrophosphorylase, orotidylate phosphoribosyltransferase, orotidylate pyrophosphorylase, orotidylic acid phosphorylase, orotidylic acid pyrophosphorylase, orotidylic phosphorylase, orotidylic pyrophosphorylase, phosphoribosyltransferase, orotate, Pyr5, PyrE, rv0382c, type I phosphoribosyltransferase, ura5

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.2 Pentosyltransferases
                2.4.2.10 orotate phosphoribosyltransferase

pH Optimum

pH Optimum on EC 2.4.2.10 - orotate phosphoribosyltransferase

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pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
10
-
recombinant enzyme
10.5 - 11.5
-
forward (phosphoribosyl transfer) reaction
5.5 - 6.5
-
reverse (pyrophosphorolysis) reaction
7 - 7.5
-
preferred buffer: Tris-HCl, when substrates are non-saturating, phosphate buffer, when substrate are saturating, not: maleate, imidazole, N-tris[hydroxymethyl] methyl-2-aminoethane-sulfonic acid (i.e. TES) or 3-[N-morpholino]-2-hydroxypropanesulfonic acid (i.e. MOPS) buffer
7.4
-
assay at
7.5
-
assay at
7.6
-
assay at
8.5
-
mutant
9.5
-
wild-type
additional information
-
2 isozymes: pI: 5.65 (minor form), pI: 5.85 (major form)