1H6J

The three-dimensional structure of capsule-specific CMP:2-keto-3-deoxy-manno-octonic acid synthetase from Escherichia coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The Three-Dimensional Structure of Capsule-Specific Cmp:2-Keto-3-Deoxy-Manno-Octonic Acid Synthetase from Escherichia Coli

Jelakovic, S.Jann, K.Schulz, G.E.

(1996) FEBS Lett. 391: 157

  • Also Cited By: 1H7T, 1H7H, 1H7G, 1H7F, 1H7E, 1GQC, 1GQ9

  • PubMed Abstract: 
  • CMP-Kdo synthetases from Gram-negative bacteria activate Kdo for incorporation into lipo- and capsule-polysaccharides. Here we report the crystal structure of the capsule-specific synthetase from E. coli at 2.3 A resolution. The enzyme is a dimer of ...

    CMP-Kdo synthetases from Gram-negative bacteria activate Kdo for incorporation into lipo- and capsule-polysaccharides. Here we report the crystal structure of the capsule-specific synthetase from E. coli at 2.3 A resolution. The enzyme is a dimer of 2 x 245 amino acid residues assuming C2 symmetry. It contains a central predominantly parallel beta-sheet with surrounding helices. The chain fold is novel; it is remotely related to a double Rossmann fold. A large pocket at the carboxyl terminal ends of the central. beta-strands most likely accommodates the catalytic center. A putative phosphate binding site at the loop between the first beta-strand and the following helix is indicated by a bound iridium hexachloride anion.


    Organizational Affiliation

    Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Freiburg im Breisgau, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-DEOXY-MANNO-OCTULOSONATE CYTIDYLYLTRANSFERASE
A, B
245Escherichia coliMutation(s): 0 
Gene Names: kpsU
EC: 2.7.7.38
Find proteins for P42216 (Escherichia coli)
Go to UniProtKB:  P42216
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.225 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 46.090α = 90.00
b = 133.460β = 102.51
c = 48.330γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-07-12
    Type: Initial release