2X46

Crystal Structure of SeMet Arg r 1

• PDB DOI: https://doi.org/10.2210/pdb2X46/pdb

• Classification: ALLERGEN
• Organism(s): Argas reflexus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2010-01-28 Released: 2011-02-09 
• Deposition Author(s): Paesen, G.C., Siebold, C., Syme, N., Harlos, K., Graham, S.C., Hilger, C., Homans, S.W., Hentges, F., Stuart, D.I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.00 Å
• R-Value Free: 0.157 
• R-Value Work: 0.135 
• R-Value Observed: 0.136 

Literature

Crystal Structure of the Allergen Arg R 1, a Histamine-Binding Lipocalin from a Soft Tick

Paesen, G.C., Siebold, C., Syme, N., Harlos, K., Graham, S.C., Hilger, C., Homans, S.W., Hentges, F., Stuart, D.I.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 15.81 kDa 
• Atom Count: 1,416 
• Modelled Residue Count: 144 
• Deposited Residue Count: 144 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ALLERGEN ARG R 1	A	144	Argas reflexus	Mutation(s): 1
UniProt
Find proteins for Q5GQ85 (Argas reflexus) Explore Q5GQ85  Go to UniProtKB:  Q5GQ85

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRS	B [auth A]	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	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.00 Å
• R-Value Free: 0.157 
• R-Value Work: 0.135 
• R-Value Observed: 0.136 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 32.497	α = 90
b = 55.661	β = 90
c = 61.928	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SHELX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-02-09 
Deposition Author(s): Paesen, G.C., Siebold, C., Syme, N., Harlos, K., Graham, S.C., Hilger, C., Homans, S.W., Hentges, F., Stuart, D.I.

Revision History  

• Version 1.0: 2011-02-09
  Type: Initial release
  
• Version 1.1: 2011-05-07
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-11-13
  Changes: Data collection, Database references, Derived calculations, Other, Structure summary