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2.4.2.7: adenine phosphoribosyltransferase

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

Word Map on EC 2.4.2.7

Reaction

AMP
+
diphosphate
=
adenine
+
5-phospho-alpha-D-ribose 1-diphosphate

Synonyms

adenine phosphoribosyl transferase, adenine phosphoribosylpyrophosphate transferase, adenine phosphoribosyltransferase, adenine phosphoribosyltransferase 2, adenione PRTase, adenosine phosphoribosyltransferase, adenylate pyrophosphorylase, adenylic pyrophosphorylase, AMP pyrophosphorylase, AMP-pyrophosphate phosphoribosyltransferase, AMP:pyrophosphate phospho-D-ribosyltransferase, APRT, APRT1, APRT2, APRTase, APRTh, apT, APT1, APT2, APT4, APT5, ApTR, FtAPRT, gpT-1, hAPRT, More, phosphoribosyltransferase, adenine, ScAPRT, SmAPRT1, Smp_054360, SSO2342, transphosphoribosidase, TtAPRT2, TTC1249, TTC1250, TTH1250, TTHA1614, TthAPRT, TthHB27APRT, TT_C1249, TT_C1250, type I PRT

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.2 Pentosyltransferases
                2.4.2.7 adenine phosphoribosyltransferase

General Stability

General Stability on EC 2.4.2.7 - adenine phosphoribosyltransferase

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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
5-phospho-alpha-D-ribose 1-diphosphate stabilizes Mycoplasma mycoides enzyme markedly
-
ammonium sulfate, 1 M, partially protects against inactivation during storage
-
bovine serum albumin or adenine stabilizes Mycoplasma mycoides enzyme slightly
-
dialysis against 20 mM Tris-HCl, pH 7.5, 20 mM (NH4)2SO4 + 5 mM 2-mercaptoethanol inactivates
-
dithiothreitol, 10 mM, or dimethylsulfoxide, 5%, or 5-phospho-alpha-D-ribose 1-diphosphate, 1 mM, protects against inactivation during storage
-
freezing and thawing have little effect on E. coli enzyme, but inactivate Mycoplasma mycoides enzyme
inactivation by isoelectric focusing
-
instability after calcium phosphate gel treatment
-
Mg2+ stabilizes
-
unstable in absence of Mg2+ and glycerol, loss 0f 70% activity during gel filtration
-