3MBP

MALTODEXTRIN-BINDING PROTEIN WITH BOUND MALTOTRIOSE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Extensive features of tight oligosaccharide binding revealed in high-resolution structures of the maltodextrin transport/chemosensory receptor.

Quiocho, F.A.Spurlino, J.C.Rodseth, L.E.

(1997) Structure 5: 997-1015

  • DOI: 10.1016/s0969-2126(97)00253-0
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Active-transport processes perform a vital function in the life of a cell, maintaining cell homeostasis and allowing access of nutrients. Maltodextrin/maltose-binding protein (MBP; M(r) = 40k) is a receptor protein which serves as an initial high-aff ...

    Active-transport processes perform a vital function in the life of a cell, maintaining cell homeostasis and allowing access of nutrients. Maltodextrin/maltose-binding protein (MBP; M(r) = 40k) is a receptor protein which serves as an initial high-affinity binding component of the active-transport system of maltooligosaccharides in bacteria. MBP also participates in chemotaxis towards maltooligosaccharides. The interaction between MBP and specific cytoplasmic membrane proteins initiates either active transport or chemotaxis. In order to gain new understanding of the function of MBP, especially its versatility in binding different linear and cyclic oligosaccharides with similar affinities, we have undertaken high-resolution X-ray analysis of three oligosaccharide-bound structures.


    Related Citations: 
    • Refined 1.8-A Structure Reveals the Mode of Binding of Beta-Cyclodextrin to the Maltodextrin Binding Protein
      Sharff, A.J., Rodseth, L.E., Quiocho, F.A.
      (1993) Biochemistry 32: 10553
    • Atomic Interactions in Protein-Carbohydrate Complexes. Tryptophan Residues in the Periplasmic Maltodextrin Receptor for Active Transport and Chemotaxis
      Spurlino, J.C., Rodseth, L.E., Quiocho, F.A.
      (1992) J Mol Biol 226: 15
    • Crystallographic Evidence of a Large Ligand-Induced Hinge-Twist Motion between the Two Domains of the Maltodextrin Binding Protein Involved in Active Transport and Chemotaxis
      Sharff, A.J., Rodseth, L.E., Spurlino, J.C., Quiocho, F.A.
      (1992) Biochemistry 31: 10657
    • The 2.3-A Resolution Structure of the Maltose-or Maltodextrin-Binding Protein, a Primary Receptor of Bacterial Active Transport and Chemotaxis
      Spurlino, J.C., Lu, G.Y., Quiocho, F.A.
      (1991) J Biol Chem 266: 5202

    Organizational Affiliation

    Howard Hughes Medical Institute, Baylor College of Medicine, Houston, TX 77030, USA. faq@dino.bcm.tmc.edu



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MALTODEXTRIN-BINDING PROTEIN
A
370Escherichia coli K-12Mutation(s): 0 
Gene Names: malEb4034JW3994
Find proteins for P0AEX9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEX9
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GLC
Query on GLC

Download CCD File 
A
ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Work: 0.164 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 106.07α = 90
b = 68.43β = 112.51
c = 57.94γ = 90
Software Package:
Software NamePurpose
PROTEINmodel building
CHAINmodel building
PROLSQrefinement
SDMSdata reduction
SDMSdata scaling
PROTEINphasing
CHAINphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-12-24
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance