1NRI

Crystal Structure of Putative Phosphosugar Isomerase HI0754 from Haemophilus influenzae

• PDB DOI: https://doi.org/10.2210/pdb1NRI/pdb

• Classification: STRUCTURAL GENOMICS, UNKNOWN FUNCTION
• Organism(s): Haemophilus influenzae
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2003-01-24 Released: 2003-07-29 
• Deposition Author(s): Kim, Y., Quartey, P., Ng, R., Zarembinski, T.I., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.246 
• R-Value Work: 0.212 
• R-Value Observed: 0.216 

Literature

Crystal Structure of Hypothetical protein HI0754 from Haemophilus influenzae

Kim, Y., Quartey, P., Ng, R., Zarembinski, T.I., Joachimiak, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 33.21 kDa 
• Atom Count: 2,075 
• Modelled Residue Count: 248 
• Deposited Residue Count: 306 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypothetical protein HI0754	A	306	Haemophilus influenzae	Mutation(s): 8  Gene Names: HI0754 EC: 4.2.1.126
UniProt
Find proteins for P44862 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)) Explore P44862  Go to UniProtKB:  P44862

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.246 
• R-Value Work: 0.212 
• R-Value Observed: 0.216 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.656	α = 90
b = 41.272	β = 123.76
c = 77.252	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
d*TREK	data reduction
HKL-2000	data scaling
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-07-29 
Deposition Author(s): Kim, Y., Quartey, P., Ng, R., Zarembinski, T.I., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2003-07-29
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary