| EC |
2.4.2.18 |
| Accepted name: |
anthranilate phosphoribosyltransferase |
| Reaction: |
N-(5-phospho-D-ribosyl)-anthranilate + diphosphate = anthranilate + 5-phospho-α-D-ribose 1-diphosphate |
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For diagram of tryptophan biosynthesis, click here |
| Other name(s): |
phosphoribosyl-anthranilate pyrophosphorylase; PRT; anthranilate 5-phosphoribosylpyrophosphate phosphoribosyltransferase; anthranilate phosphoribosylpyrophosphate phosphoribosyltransferase; phosphoribosylanthranilate pyrophosphorylase; phosphoribosylanthranilate transferase; anthranilate-PP-ribose-P phosphoribosyltransferase |
| Systematic name: |
N-(5-phospho-D-ribosyl)-anthranilate:diphosphate phospho-α-D-ribosyltransferase |
| Comments: |
In some organisms, this enzyme is part of a multifunctional protein together with one or more other components of the system for biosynthesis of tryptophan [EC 4.1.1.48 (indole-3-glycerol-phosphate synthase), EC 4.1.3.27 (anthranilate synthase), EC 4.2.1.20 (tryptophan synthase) and EC 5.3.1.24 (phosphoribosylanthranilate isomerase)]. |
| Links to other databases: |
BRENDA, EXPASY, Gene, KEGG, MetaCyc, PDB, CAS registry number: 9059-35-2 |
| References: |
| 1. |
Creighton, T.E. and Yanofsky, C. Chorismate to tryptophan (Escherichia coli) - anthranilate synthetase, PR transferase, PRA isomerase, InGP synthetase, tryptophan synthetase. Methods Enzymol. 17A (1970) 365–380. |
| 2. |
Hütter, R., Niederberger, P. and DeMoss, J.A. Tryptophan synthetic genes in eukaryotic microorganisms. Annu. Rev. Microbiol. 40 (1986) 55–77. [DOI] [PMID: 3535653] |
| 3. |
Ito, J. and Yanofsky, C. Anthranilate synthetase, an enzyme specified by the tryptophan operon of Escherichia coli: Comparative studies on the complex and the subunits. J. Bacteriol. 97 (1969) 734–742. [PMID: 4886290] |
| 4. |
Wegman, J. and DeMoss, J.A. The enzymatic conversion of anthranilate to indolylglycerol phosphate in Neurospora crassa. J. Biol. Chem. 240 (1965) 3781–3788. [PMID: 5842052] |
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| [EC 2.4.2.18 created 1972] |
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