1KGZ image
Deposition Date 2001-11-28
Release Date 2002-10-23
Last Version Date 2024-02-14
Entry Detail
PDB ID:
1KGZ
Keywords:
Title:
Crystal Structure Analysis of the Anthranilate Phosphoribosyltransferase from Erwinia carotovora (current name, Pectobacterium carotovorum)
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.40 Å
R-Value Free:
0.26
R-Value Work:
0.21
Space Group:
P 21 21 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Anthranilate phosphoribosyltransferase
Gene (Uniprot):trpD
Chain IDs:A, B
Chain Length:345
Number of Molecules:2
Biological Source:Pectobacterium carotovorum
Primary Citation
The Crystal Structure of Anthranilate Phosphoribosyltransferase from the Enterobacterium Pectobacterium carotovorum
FEBS Lett. 523 239 246 (2002)
PMID: 12123839 DOI: 10.1016/S0014-5793(02)02905-8

Abstact

The structure of anthranilate phosphoribosyltransferase from the enterobacterium Pectobacterium carotovorum has been solved at 2.4 A in complex with Mn(2+)-pyrophosphate, and at 1.9 A without ligands. The enzyme structure has a novel phosphoribosyltransferase (PRT) fold and displays close homology to the structures of pyrimidine nucleoside phosphorylases. The enzyme is a homodimer with a monomer of 345 residues. Each monomer consists of two subdomains, alpha and alpha/beta, which form a cleft containing the active site. The nature of the active site is inferred from the trapped MnPPi complex and detailed knowledge of the active sites of nucleoside phosphorylases. With the anthranilate (An)PRT structure solved, the structures of all the enzymes required for tryptophan biosynthesis are now known.

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