1APB

A PRO TO GLY MUTATION IN THE HINGE OF THE ARABINOSE-BINDING PROTEIN ENHANCES BINDING AND ALTERS SPECIFICITY: SUGAR-BINDING AND CRYSTALLOGRAPHIC STUDIES

Structural Biology Knowledgebase: 1APB SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Observed: 0.192

Literature

Macromolecules
Sequence Display for 1APB

Classification: BINDING PROTEINS

Total Structure Weight: 33521.50

Macromolecule Entities
Molecule Chains Length Organism Details
L-ARABINOSE-BINDING PROTEIN A 306 Escherichia coli Mutation: P254G
Gene Name(s): araF b1901 JW1889
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

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

A ALPHA-D-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-PHYPRBDBSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
FCB
Query on FCB

A BETA-D-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-FPRJBGLDSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
FCA N/A in BindingDB
Kd: 1510 nM  BindingMOAD
N/A in PDBbind
FCB N/A in BindingDB
Kd: 1510 nM  BindingMOAD
N/A in PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Observed: 0.192
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 55.46 α = 90.00
b = 71.82 β = 90.00
c = 77.84 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1991-11-15
  • Released Date: 1992-01-15
  • Deposition author(s): Vermersch, P.S., Tesmer, J.J.G., Quiocho, F.A.

Revision History

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