3S5P

Crystal structure of ribose-5-phosphate isomerase B RpiB from Giardia lamblia

• PDB DOI: https://doi.org/10.2210/pdb3S5P/pdb

• Classification: ISOMERASE
• Organism(s): Giardia lamblia ATCC 50803
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-05-23 Released: 2011-06-01 
• Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.234 
• R-Value Work: 0.198 
• R-Value Observed: 0.200 

Literature

Crystal structure of ribose-5-phosphate isomerase B RpiB from Giardia lamblia

Edwards, T.E., Abendroth, J., Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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 (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 35.8 kDa 
• Atom Count: 1,893 
• Modelled Residue Count: 259 
• Deposited Residue Count: 332 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribose 5-phosphate isomerase	A, B	166	Giardia lamblia ATCC 50803	Mutation(s): 0  Gene Names: GL50803_27614 EC: 5.3.1.6
UniProt
Find proteins for A8B2K2 (Giardia intestinalis (strain ATCC 50803 / WB clone C6)) Explore A8B2K2  Go to UniProtKB:  A8B2K2

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.234 
• R-Value Work: 0.198 
• R-Value Observed: 0.200 
• Space Group: P 3₁ 2 1
• Diffraction Data: https://doi.org/10.18430/M33S5P

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.2	α = 90
b = 89.2	β = 90
c = 68.24	γ = 120

Software Package:

Software Name	Purpose
XSCALE	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-06-01 
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Revision History  

• Version 1.0: 2011-06-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description