Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

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

Macromolecule Content

• Total Structure Weight: 44231.76 
• Atom Count: 2980 
• Residue Count: 394 
• Unique protein chains: 1

5ESW

Crystal structure of Apo hypoxanthine-guanine phosphoribosyltransferase from Legionella pneumophila

• DOI: 10.2210/pdb5ESW/pdb

• Classification: TRANSFERASE
• Organism(s): Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513)
• Expression System: Escherichia coli


• Deposited: 2015-11-17 Released: 2016-03-30 
• Deposition Author(s): Zhang, N., Gong, X., Lu, M., Chen, X., Qin, X., Ge, H.
• Funding Organization(s): National Natural Science Foundation of China 

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.4 Å
• R-Value Free: 0.219 
• R-Value Work: 0.165 

Literature

Crystal structures of Apo and GMP bound hypoxanthine-guanine phosphoribosyltransferase from Legionella pneumophila and the implications in gouty arthritis

Zhang, N., Gong, X., Lu, M., Chen, X., Qin, X., Ge, H.

(2016) J.Struct.Biol. 194: 311-316

• PubMed: 26968365 
• DOI: 10.1016/j.jsb.2016.03.007
• Primary Citation of Related Structures:  
  5ESX


• PubMed Abstract: 
  

Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) (EC 2.4.2.8) reversibly catalyzes the transfer of the 5-phophoribosyl group from 5-phosphoribosyl-alpha-1-pyrophosphate (PRPP) to hypoxanthine or guanine to form inosine monophosphate (IMP) or guanosine monophosphate (GMP) in the purine salvage pathway. To investigate the catalytic mechanism of this enzyme in the intracellular pathogen Legionella pneumophila, we determined the crystal structures of the L. pneumophila HGPRT (LpHGPRT) both in its apo-form and in complex with GMP. The structures reveal that LpHGPRT comprises a core domain and a hood domain which are packed together to create a cavity for GMP-binding and the enzymatic catalysis. The binding of GMP induces conformational changes of the stable loop II. This new binding site is closely related to the Gout arthritis-linked human HGPRT mutation site (Ser103Arg). Finally, these structures of LpHGPRT provide insights into the catalytic mechanism of HGPRT.

---

Organizational Affiliation: 

Institute of Health Sciences and School of Life Science, Anhui University, Hefei, Anhui 230601, China.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Purine/pyrimidine phosphoribosyltransferase	A, B	197	Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513)	Mutation(s): 0  EC: 2.4.2.8
Find proteins for Q5ZVC1 (Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513)) Go to UniProtKB:  Q5ZVC1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
PO4	A	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.4 Å
• R-Value Free: 0.219 
• R-Value Work: 0.165 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 66.020	α = 90.00
b = 67.892	β = 90.00
c = 94.789	γ = 90.00

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2015-11-17 
• Released Date: 2016-03-30 
• Deposition Author(s): Zhang, N., Gong, X., Lu, M., Chen, X., Qin, X., Ge, H.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China	China	31400641
National Natural Science Foundation of China	China	31270770

Revision History 

• Version 1.0: 2016-03-30
  Type: Initial release
• Version 1.1: 2016-05-18
  Type: Database references