2HPR

HISTIDINE-CONTAINING PHOSPHOCARRIER PROTEIN HPR MUTANT WITH MET 51 REPLACED BY VAL AND SER 83 REPLACED BY CYS (M51V, S83C)

• PDB DOI: https://doi.org/10.2210/pdb2HPR/pdb

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


• Deposited: 1992-09-09 Released: 1993-01-15 
• Deposition Author(s): Herzberg, O.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.145 

Literature

Refined structures of the active Ser83-->Cys and impaired Ser46-->Asp histidine-containing phosphocarrier proteins.

Liao, D.I., Herzberg, O.

(1994) Structure 2: 1203-1216

• PubMed: 7704530 
• DOI: https://doi.org/10.1016/s0969-2126(94)00122-7
• Primary Citation of Related Structures:  
  1SPH, 2HPR


• PubMed Abstract: 
  

  The histidine-containing phosphocarrier protein (HPr) functions in the bacterial phosphoenolpyruvate:sugar phosphotransferase system (PTS). His15 on HPr accepts a phosphoryl group from Enzyme I and transfers it to the Enzyme IIA domain of a sugar-specific PTS permease. In addition, HPrs from Gram-positive bacteria undergo phosphorylation on a serine residue, Ser46, which inhibits phosphorylation at His15 and sugar transport. The questions to be addressed at the molecular level are: what is the mechanism of each of the phosphoryl transfers and what conformational transitions are associated with each event?

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Organizational Affiliation: 

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

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 9.16 kDa 
• Atom Count: 730 
• Modelled Residue Count: 87 
• Deposited Residue Count: 87 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HISTIDINE-CONTAINING PHOSPHOCARRIER PROTEIN HPR	A	87	Bacillus subtilis	Mutation(s): 0
UniProt
Find proteins for P08877 (Bacillus subtilis (strain 168)) Explore P08877  Go to UniProtKB:  P08877

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSO	A	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.145 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.26	α = 90
b = 47.26	β = 90
c = 61.85	γ = 120

Software Package:

Software Name	Purpose
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1993-01-15 
Deposition Author(s): Herzberg, O.

Revision History  

• Version 1.0: 1993-01-15
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance