1MV8

1.55 A crystal structure of a ternary complex of GDP-mannose dehydrogenase from Psuedomonas aeruginosa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.175 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 2.1 of the entry. See complete history


Literature

The crystal structure of GDP-mannose dehydrogenase: A key enzyme in alginate biosynthesis of P. aeruginosa

Snook, C.F.Tipton, P.A.Beamer, L.J.

(2003) Biochemistry 42: 4658-4668

  • DOI: https://doi.org/10.1021/bi027328k
  • Primary Citation of Related Structures:  
    1MFZ, 1MUU, 1MV8

  • PubMed Abstract: 

    The enzyme GMD from Pseudomonas aeruginosa catalyzes the committed step in the synthesis of the exopolysaccharide alginate. Alginate is a major component of P. aeruginosa biofilms that protect the bacteria from the host immune response and antibiotic therapy. The 1.55 A crystal structure of GMD in ternary complex with its cofactor NAD(H) and product GDP-mannuronic acid reveals that the enzyme forms a domain-swapped dimer with two polypeptide chains contributing to each active site. The extensive dimer interface provides multiple opportunities for intersubunit communication. Comparison of the GMD structure with that of UDP-glucose dehydrogenase reveals the structural basis of sugar binding specificity that distinguishes these two related enzyme families. The high-resolution structure of GMD provides detailed information on the active site of the enzyme and a template for structure-based inhibitor design.


  • Organizational Affiliation

    Department of Biochemistry, 117 Schweitzer Hall, University of Missouri-Columbia, Columbia, Missouri 65211, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GDP-mannose 6-dehydrogenase
A, B, C, D
436Pseudomonas aeruginosaMutation(s): 0 
Gene Names: AlgD
EC: 1.1.1.132
UniProt
Find proteins for P11759 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore P11759 
Go to UniProtKB:  P11759
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP11759
Sequence Annotations
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose
E, F
2N/A
Glycosylation Resources
GlyTouCan:  G05551OP
GlyCosmos:  G05551OP
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAD
Query on NAD

Download Ideal Coordinates CCD File 
G [auth A],
J [auth B],
K [auth C],
O [auth D]
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
GDX
Query on GDX

Download Ideal Coordinates CCD File 
H [auth A],
I [auth A],
P [auth D],
Q [auth D]
GUANOSINE 5'-(TRIHYDROGEN DIPHOSPHATE), P'-D-MANNOPYRANOSYL ESTER
C16 H23 N5 O17 P2
DNBSDUDYNPJVCN-ZXTXFPBHSA-N
MPD
Query on MPD

Download Ideal Coordinates CCD File 
N [auth C](4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
ACY
Query on ACY

Download Ideal Coordinates CCD File 
L [auth C],
M [auth C]
ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.175 
  • Space Group: P 43
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.472α = 90
b = 82.472β = 90
c = 309.893γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-05-06
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.3: 2014-11-12
    Changes: Structure summary
  • Version 1.4: 2018-02-14
    Changes: Experimental preparation
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
  • Version 2.1: 2024-02-14
    Changes: Data collection, Database references, Refinement description, Structure summary