2.4.2.22: xanthine phosphoribosyltransferase
This is an abbreviated version!
For detailed information about xanthine phosphoribosyltransferase, go to the full flat file.
Word Map on EC 2.4.2.22
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2.4.2.22
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purine
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salvage
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falciparum
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plasmodium
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6-oxopurine
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phosphoribosylation
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phosphoribosyltransferases
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tritrichomonas
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prtases
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2.4.2.8
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cho-k1-bh4
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hgprts
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2.7.1.20
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psv2-gpt
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medicine
- 2.4.2.22
- purine
-
salvage
- falciparum
- plasmodium
-
6-oxopurine
-
phosphoribosylation
-
phosphoribosyltransferases
-
tritrichomonas
-
prtases
-
2.4.2.8
-
cho-k1-bh4
- hgprts
-
2.7.1.20
-
psv2-gpt
- medicine
Reaction
Synonyms
5-phospho-alpha-D-ribose-1-diphosphate:xanthine phospho-D-ribosyltransferase, EcXGPRT, HGXPRT, hypoxanthine-guanine-(xanthine) phosphoribosyltransferase, hypoxanthine-guanine-xanthine phosphoribosyltransferase, More, Pf HGXPRT, phosphoribosyltransferase, xanthine, ttha0535, TtXPRT, Xan phosphoribosyltransferase, xanthine phosphoribosyltransferase, xanthine PRT, xanthine-guanine PRT, xanthosine 5'-phosphate pyrophosphorylase, xanthylate pyrophosphorylase, xanthylic pyrophosphorylase, XGPRT
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General Information on EC 2.4.2.22 - xanthine phosphoribosyltransferase
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GENERAL INFORMATION 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
evolution
metabolism
in Escherichia coli, the purine salvage pathway has two 6-oxopurine phosphoribosyltransferases (PRTs), xanthine-guanine PRT (EcXGPRT, EC 2.4.2.22) and hypoxanthine PRT (EcHPRT, EC 2.4.2.8). Escherichia coli can utilize both purine salvage and de novo pathways for the production of the nucleoside monophosphates required for incorporation into DNA and RNA. Escherichia coli is highly unusual in that it is one of only a few organisms that possess two distinct salvage enzymes for 6-oxopurine nucleoside monophosphate production
physiological function
physiological function
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Sphi609 cells expressing wild-type XPRT grow in minimal medium supplemented with xanthine but not in medium containing hypoxanthine or guanine. In contrast, Escherichia coli Sphi609 transformed with E198D or E215D exhibit vigorous growth with xanthine or hypoxanthine but notably less growth with guanine. Sphi609 transformants expressing E215Q or E198D/E215D proliferate robustly in xanthine, hypoxanthine, and guanine
physiological function
hypoxanthine-guanine-(xanthine) phosphoribosyltransferases, HG(X)PRTs, catalyze the formation of the 6-oxopurine nucleoside monophosphates from a nucleobase and from 5'-phospho-alpha-D-ribosyl-1-pyrophosphate
physiological function
purine phosphoribosyltransferases, purine PRTs, are essential enzymes in the purine salvage pathway of living organisms. They are involved in the formation of C-N glycosidic bonds in purine nucleosides-5'-monophosphate (NMPs) through the transfer of the 5-phosphoribosyl group from 5-phospho-alpha-D-ribosyl-1-diphosphate (PRPP) to purine nucleobases in the presence of Mg2+
physiological function
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purine phosphoribosyltransferases, purine PRTs, are essential enzymes in the purine salvage pathway of living organisms. They are involved in the formation of C-N glycosidic bonds in purine nucleosides-5'-monophosphate (NMPs) through the transfer of the 5-phosphoribosyl group from 5-phospho-alpha-D-ribosyl-1-diphosphate (PRPP) to purine nucleobases in the presence of Mg2+
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physiological function
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purine phosphoribosyltransferases, purine PRTs, are essential enzymes in the purine salvage pathway of living organisms. They are involved in the formation of C-N glycosidic bonds in purine nucleosides-5'-monophosphate (NMPs) through the transfer of the 5-phosphoribosyl group from 5-phospho-alpha-D-ribosyl-1-diphosphate (PRPP) to purine nucleobases in the presence of Mg2+
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