2IA4 | pdb_00002ia4

Crystal structure of Novel amino acid binding protein from Shigella flexneri

• PDB DOI: https://doi.org/10.2210/pdb2IA4/pdb

• Classification: PROTEIN TRANSPORT
• Organism(s): Shigella flexneri 2a str. 301
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-09-07 Released: 2007-08-21 
• Deposition Author(s): Fan, C.P., Wang, D.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 
  0.226 (Depositor), 0.208 (DCC) 
• R-Value Work: 
  0.200 (Depositor), 0.187 (DCC) 
• R-Value Observed: 
  0.200 (Depositor) 

Literature

Structural and functional study of novel amino acid binding protein from Shigella flexneri

Fan, C.P., Wang, D.C.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 65.6 kDa 
• Atom Count: 5,051 
• Modeled Residue Count: 555 
• Deposited Residue Count: 574 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative periplasmic binding transport protein	A, B	287	Shigella flexneri 2a str. 301	Mutation(s): 0
UniProt
Find proteins for A0A0H2UXX1 (Shigella flexneri) Explore A0A0H2UXX1  Go to UniProtKB:  A0A0H2UXX1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GLU	D [auth A], F [auth B]	GLUTAMIC ACID C5 H9 N O4 WHUUTDBJXJRKMK-VKHMYHEASA-N
TRS	C [auth A], E [auth B]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free:  0.226 (Depositor), 0.208 (DCC) 
• R-Value Work:  0.200 (Depositor), 0.187 (DCC) 
• R-Value Observed: 0.200 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.35	α = 90
b = 67.71	β = 98.9
c = 79.98	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MAR345	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-08-21 
Deposition Author(s): Fan, C.P., Wang, D.C.

Revision History  

• Version 1.0: 2007-08-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-18
  Changes: Refinement description
• Version 1.3: 2024-11-06
  Changes: Data collection, Database references, Derived calculations, Structure summary