1TDJ

THREONINE DEAMINASE (BIOSYNTHETIC) FROM E. COLI

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.340 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.210 

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This is version 1.2 of the entry. See complete history. 


Literature

Structure and control of pyridoxal phosphate dependent allosteric threonine deaminase.

Gallagher, D.T., Gilliland, G.L., Xiao, G., Zondlo, J., Fisher, K.E., Chinchilla, D., Eisenstein, E.

(1998) Structure 6: 465-475

  • DOI: https://doi.org/10.1016/s0969-2126(98)00048-3
  • Primary Citation of Related Structures:  
    1TDJ

  • PubMed Abstract: 

    • Feedback inhibition of biosynthetic threonine deaminase (TD) from Escherichia coli provided one of the earliest examples of protein-based metabolic regulation. Isoleucine, the pathway end-product, and valine, the product of a parallel pathway, serve as allosteric inhibitor and activator, respectively ...

    Feedback inhibition of biosynthetic threonine deaminase (TD) from Escherichia coli provided one of the earliest examples of protein-based metabolic regulation. Isoleucine, the pathway end-product, and valine, the product of a parallel pathway, serve as allosteric inhibitor and activator, respectively. This enzyme is thus a useful model system for studying the structural basis of allosteric control mechanisms.

    Related Citations: 
    • Polymorphous Crystallization and Diffraction of Threonine Deaminase from Escherichia Coli
      Gallagher, D.T., Eisenstein, E., Fisher, K.E., Zondlo, J., Chinchilla, D., Yu, H.D., Dill, J., Winborne, E., Ducote, K., Xiao, G., Gilliland, G.L.
      (1998) Acta Crystallogr D Biol Crystallogr 54: 467
    Organizational Affiliation: 

    University of Maryland, Biotechnology Institute, National Institute of Standards and Technology 9600 Gudelsky Drive, Rockville, Maryland 20850, USA. travis@dtg.nist.gov



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BIOSYNTHETIC THREONINE DEAMINASEA514Escherichia coliMutation(s): 0 
EC: 4.2.1.16 (PDB Primary Data), 4.3.1.19 (UniProt)
UniProt
Find proteins for P04968 (Escherichia coli (strain K12))
Explore P04968 
Go to UniProtKB:  P04968
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04968
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PLP
Query on PLP
Download Ideal Coordinates CCD File 
B [auth A]PYRIDOXAL-5'-PHOSPHATE
C8 H10 N O6 P
NGVDGCNFYWLIFO-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.340 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.210 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.1α = 90
b = 90.8β = 90
c = 162.8γ = 90
Software Package:
Software NamePurpose
PHASESphasing
TNTrefinement
XENGENdata reduction
XENGENdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-10-14
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance