8CAG

Hypoxanthine-guanine phosphoribosyltransferase from E. coli

• PDB DOI: https://doi.org/10.2210/pdb8CAG/pdb

• Classification: TRANSFERASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-01-24 Released: 2023-02-01 
• Deposition Author(s): Timofeev, V.I., Shevtsov, M.B., Abramchik, Y.A., Kostromina, M.A., Zayats, E.A., Kuranova, I.P., Esipov, R.S.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.293 
• R-Value Work: 0.254 
• R-Value Observed: 0.256 

Starting Model: experimental

Literature

Hypoxanthine-guanine phosphoribosyltransferase from E. coli

Timofeev, V.I., Shevtsov, M.B., Abramchik, Y.A., Kostromina, M.A., Zayats, E.A., Kuranova, I.P., Esipov, R.S.

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)

Macromolecule Content

• Total Structure Weight: 39.84 kDa 
• Atom Count: 2,724 
• Modelled Residue Count: 338 
• Deposited Residue Count: 352 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypoxanthine phosphoribosyltransferase	A, B	176	Escherichia coli	Mutation(s): 0  Gene Names: hpt, b0125, JW5009 EC: 2.4.2.8
UniProt
Find proteins for P0A9M2 (Escherichia coli (strain K12)) Explore P0A9M2  Go to UniProtKB:  P0A9M2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	C [auth A], D [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.293 
• R-Value Work: 0.254 
• R-Value Observed: 0.256 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 84.65	α = 90
b = 84.65	β = 90
c = 167.242	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-02-01 
Deposition Author(s): Timofeev, V.I., Shevtsov, M.B., Abramchik, Y.A., Kostromina, M.A., Zayats, E.A., Kuranova, I.P., Esipov, R.S.

---

Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-02-01
  Type: Initial release
  
• Version 1.1: 2024-06-19
  Changes: Data collection