1EKX

THE ISOLATED, UNREGULATED CATALYTIC TRIMER OF ASPARTATE TRANSCARBAMOYLASE COMPLEXED WITH BISUBSTRATE ANALOG PALA (N-(PHOSPHONACETYL)-L-ASPARTATE)

Structural Biology Knowledgebase: 1EKX SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.214
  • R-Value Work: 0.171

Literature

Macromolecules
Sequence Display for 1EKX

Classification: TRANSFERASE

Total Structure Weight: 104251.33

Macromolecule Entities
Molecule Chains Length Organism Details
ASPARTATE TRANSCARBAMOYLASE A, B, C 311 Escherichia coli EC#: 2.1.3.2 IUBMB
Fragment: CATALYTIC SUBUNIT
Gene Name(s): pyrB b4245 JW4204
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
PAL
Query on PAL

A, B, C N-(PHOSPHONACETYL)-L-ASPARTIC ACID
C6 H10 N O8 P
ZZKNRXZVGOYGJT-VKHMYHEASA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

B, C CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.214
  • R-Value Work: 0.171
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 58.12 α = 90.00
b = 82.13 β = 90.00
c = 252.51 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2000-03-09
  • Released Date: 2000-05-12
  • Deposition author(s): Endrizzi, J.A., Beernink, P.T., Alber, T., Schachman, H.K.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4