1JVN

CRYSTAL STRUCTURE OF IMIDAZOLE GLYCEROL PHOSPHATE SYNTHASE: A TUNNEL THROUGH A (BETA/ALPHA)8 BARREL JOINS TWO ACTIVE SITES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.224 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of imidazole glycerol phosphate synthase: a tunnel through a (beta/alpha)8 barrel joins two active sites.

Chaudhuri, B.N.Lange, S.C.Myers, R.S.Chittur, S.V.Davisson, V.J.Smith, J.L.

(2001) Structure 9: 987-997

  • Primary Citation of Related Structures:  
    1JVN

  • PubMed Abstract: 
  • Imidazole glycerol phosphate synthase catalyzes a two-step reaction of histidine biosynthesis at the bifurcation point with the purine de novo pathway. The enzyme is a new example of intermediate channeling by glutamine amidotransferases in which ammonia generated by hydrolysis of glutamine is channeled to a second active site where it acts as a nucleophile ...

    Imidazole glycerol phosphate synthase catalyzes a two-step reaction of histidine biosynthesis at the bifurcation point with the purine de novo pathway. The enzyme is a new example of intermediate channeling by glutamine amidotransferases in which ammonia generated by hydrolysis of glutamine is channeled to a second active site where it acts as a nucleophile. In this case, ammonia reacts in a cyclase domain to produce imidazole glycerol phosphate and an intermediate of purine biosynthesis. The enzyme is also a potential target for drug and herbicide development since the histidine pathway does not occur in mammals.


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BIFUNCTIONAL HISTIDINE BIOSYNTHESIS PROTEIN HISHFA, B555Saccharomyces cerevisiaeMutation(s): 1 
Gene Names: HIS7
EC: 2.4.2 (PDB Primary Data), 4.3.2.10 (UniProt), 3.5.1.2 (UniProt)
Find proteins for P33734 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P33734 
Go to UniProtKB:  P33734
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
143
Query on 143
A, BL-PEPTIDE LINKINGC8 H13 N3 O5 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.224 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 98.37α = 90
b = 112.173β = 90
c = 116.68γ = 90
Software Package:
Software NamePurpose
SOLVEphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-10-12
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance