1HSL

REFINED 1.89 ANGSTROMS STRUCTURE OF THE HISTIDINE-BINDING PROTEIN COMPLEXED WITH HISTIDINE AND ITS RELATIONSHIP WITH MANY OTHER ACTIVE TRANSPORT(SLASH)CHEMOSENSORY RECEPTORS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Refined 1.89-A structure of the histidine-binding protein complexed with histidine and its relationship with many other active transport/chemosensory proteins.

Yao, N.Trakhanov, S.Quiocho, F.A.

(1994) Biochemistry 33: 4769-4779


  • PubMed Abstract: 
  • The structure of the histidine-binding protein (HBP, M(r) = 26,100), involved solely in active transport, has been determined by the molecular replacement technique and refined to 1.89-A resolution and to an R-factor of 0.199. The structure is that o ...

    The structure of the histidine-binding protein (HBP, M(r) = 26,100), involved solely in active transport, has been determined by the molecular replacement technique and refined to 1.89-A resolution and to an R-factor of 0.199. The structure is that of two protein molecules, each with a bound L-histidine, in the asymmetric unit. Replacement solution was achieved by using a model of the crystal structure of the ligand-free, open-cleft form of the lysine/arginine/ornithine-binding protein which was modified so that the two domains are close to each other by bending the hinge connecting the two domains. The bound histidine is held in place by 10 hydrogen bonds, 2 salt links, and about 60 van der Waals contacts. Elucidation of the HBP structure brings a total of eight different binding proteins structures determined in our laboratory, including those with specificities for monosaccharides, maltodextrins (linear and cyclic), aliphatic amino acids, and inorganic oxyanions. These structures comprise about a third of the entire family of periplasmic binding proteins which act as initial primary high-affinity receptors of active transport in Gram-negative bacteria. Two of the binding proteins with specificities for glucose/galactose and maltodextrins also serve in a similar capacity in chemotaxis. Though these proteins have different molecular weights (ranging from 26,000 to 40,000), amino acid sequences, and ligand specificities, their three-dimensional structures are similar overall. They are elongated (axial ratios of 2:1) and composed of two similar globular domains separated by a deep cleft wherein the ligand-binding site is located. These structures provide understanding of molecular recognition of a variety of ligands at the atomic level and functional roles of the binding proteins.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Crystallographic Data of a Histidine-Binding Protein from Escherichia Coli
      Trakhanov, S.D.,Chirgadze, N.Y.,Yusifov, E.F.
      (1989) J.Mol.Biol. 207: 847
    • Crystallization and Preliminary X-Ray Studies of Hisj and Lao Periplasmic Proteins from Salmonella Typhimurium
      Kang, C.-H.,Kim, S.-H.,Nikaido, K.,Gokcen, S.,Ames, G.F.-L.
      (1989) J.Mol.Biol. 207: 643


    Organizational Affiliation

    Department of Biochemistry, Howard Hughes Medical Institute, Houston, Texas 77030.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HISTIDINE-BINDING PROTEIN
A, B
238Escherichia coli (strain K12)Gene Names: hisJ
Find proteins for P0AEU0 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEU0
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HIS
Query on HIS

Download SDF File 
Download CCD File 
A, B
HISTIDINE
C6 H10 N3 O2
HNDVDQJCIGZPNO-YFKPBYRVSA-O
 Ligand Interaction
CD
Query on CD

Download SDF File 
Download CCD File 
A, B
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
HISKd: 64 nM BINDINGMOAD
HISKd: 64 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Work: 0.199 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 39.160α = 90.00
b = 102.520β = 93.56
c = 64.980γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-05-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance