Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 29.94 kDa 
• Atom Count: 2376 
• Modelled Residue Count: 258 
• Deposited Residue Count: 262 
• Unique protein chains: 1

1B0U

ATP-BINDING SUBUNIT OF THE HISTIDINE PERMEASE FROM SALMONELLA TYPHIMURIUM

• PDB DOI: 10.2210/pdb1B0U/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 1998-11-12 Released: 1999-11-17 
• Deposition Author(s): Hung, L.-W., Wang, I.X., Nikaido, K., Liu, P.-Q., Ames, G.F.-L., Kim, S.-H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.211 
• R-Value Work: 0.185 
• R-Value Observed: 0.185 

Literature

Crystal structure of the ATP-binding subunit of an ABC transporter.

Hung, L.W., Wang, I.X., Nikaido, K., Liu, P.Q., Ames, G.F., Kim, S.H.

(1998) Nature 396: 703-707

• PubMed: 9872322 
• DOI: 10.1038/25393
• Primary Citation of Related Structures:  
  1B0U


• PubMed Abstract: 
  

ABC transporters (also known as traffic ATPases) form a large family of proteins responsible for the translocation of a variety of compounds across membranes of both prokaryotes and eukaryotes. The recently completed Escherichia coli genome sequence revealed that the largest family of paralogous E. coli proteins is composed of ABC transporters. Many eukaryotic proteins of medical significance belong to this family, such as the cystic fibrosis transmembrane conductance regulator (CFTR), the P-glycoprotein (or multidrug-resistance protein) and the heterodimeric transporter associated with antigen processing (Tap1-Tap2). Here we report the crystal structure at 1.5 A resolution of HisP, the ATP-binding subunit of the histidine permease, which is an ABC transporter from Salmonella typhimurium. We correlate the details of this structure with the biochemical, genetic and biophysical properties of the wild-type and several mutant HisP proteins. The structure provides a basis for understanding properties of ABC transporters and of defective CFTR proteins.

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Organizational Affiliation: 

E. O. Lawrence Berkeley National Laboratory, University of California at Berkeley, 94720, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HISTIDINE PERMEASE	A	262	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 0
UniProt
Find proteins for P02915 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P02915  Go to UniProtKB:  P02915

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	E [auth A]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
CL	B [auth A], C [auth A], D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.211 
• R-Value Work: 0.185 
• R-Value Observed: 0.185 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.809	α = 90
b = 68.809	β = 90
c = 148.033	γ = 90

Software Package:

Software Name	Purpose
SOLVE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-11-12 
• Released Date: 1999-11-17 
Deposition Author(s): Hung, L.-W., Wang, I.X., Nikaido, K., Liu, P.-Q., Ames, G.F.-L., Kim, S.-H.

Revision History  

• Version 1.0: 1999-11-17
  Type: Initial release
  
• Version 1.1: 2007-10-16
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance