Biological Assembly 1  

 3D View: Structure

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17.40 kDa 
• Atom Count: 1291 
• Residue Count: 158 
• Unique protein chains: 1

1GPR

REFINED CRYSTAL STRUCTURE OF IIA DOMAIN OF THE GLUCOSE PERMEASE OF BACILLUS SUBTILIS AT 1.9 ANGSTROMS RESOLUTION

• DOI: 10.2210/pdb1GPR/pdb

• Classification: PHOSPHOTRANSFERASE
• Organism(s): Bacillus subtilis
• Mutation(s): No 


• Deposited: 1991-09-25 Released: 1993-10-31 
• Deposition Author(s): Liao, D.-I., Herzberg, O.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Observed: 0.156 

Literature

An atomic model for protein-protein phosphoryl group transfer.

Herzberg, O.

(1992) J Biol Chem 267: 24819-24823

• PubMed: 1447219 
• Structures With Same Primary Citation


• PubMed Abstract: 
  

The high resolution crystal structures of two interacting proteins from the phosphoenolpyruvate:sugar phosphotransferase system, the histidine-containing phosphocarrier protein (HPr) and the IIA domain of glucose permease (IIA(Glc)) from Bacillus subtilis, provide the basis for modeling the transient binary complex formed during the phosphoryl group transfer. The complementarity of the interacting surfaces implies that no major conformational transition is required. The negatively charged phosphoryl group is buried in the interface, suggesting a key role for electrostatic interactions. It is proposed that the phosphoryl transfer is triggered by a switch between two salt bridges involving Arg-17 of the HPr. The first, prior to phosphoryl group transfer, is intramolecular, with the phosphorylated His-15. The second, during the transfer, is intermolecular, with 2 aspartate residues associated with the active site of IIA(Glc). Such alternating ion pairs may be mechanistically important in other protein-protein phosphotransfer reactions.

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Related Citations: 

• Structure of the Iia Domain of the Glucose Permease of Bacillus Subtilis at 2.2 Angstroms Resolution
  Liao, D.-I., Kapadia, G., Reddy, P., Saier Junior, M.H., Reizer, J., Herzberg, O.
  (1991) Biochemistry 30: 9583

• Crystallization of the Iia Domain of the Glucose Permease of Bacillus Subtilis
  Kapadia, G., Chen, C.C.H., Reddy, P., Saier Junior, M.H., Reizer, J., Herzberg, O.
  (1991) J Mol Biol 221: 1079

• Three-Dimensional Structure of the Escherichia Coli Phosphocarrier Protein IIIGlc
  Worthylake, D., Meadow, N.D., Roseman, S., Liao, D.-I., Herzberg, O., Remington, S.J.
  (1991) Proc Natl Acad Sci U S A 88: 10382

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Organizational Affiliation: 

Center for Advanced Research in Biotechnology, Maryland Biotechnology Institute, University of Maryland, Rockville 20850.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
GLUCOSE PERMEASE	A	162	Bacillus subtilis	Mutation(s): 0  EC: 2.7.1.69 (PDB Primary Data), 2.7.1.199 (UniProt)
Find proteins for P20166 (Bacillus subtilis (strain 168)) Go to UniProtKB:  P20166

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Observed: 0.156 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.22	α = 90
b = 54.94	β = 90
c = 66.96	γ = 90

Software Package:

Software Name	Purpose
TNT	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1991-09-25 
• Released Date: 1993-10-31 
Deposition Author(s): Liao, D.-I., Herzberg, O.

Revision History 

• Version 1.0: 1993-10-31
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance