6R02

Psychrobacter arcticus ATP phosphoribosyltransferase bound to histidine and PRPP

• PDB DOI: https://doi.org/10.2210/pdb6R02/pdb

• Classification: TRANSFERASE
• Organism(s): Psychrobacter arcticus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2019-03-12 Released: 2019-08-07 
• Deposition Author(s): Alphey, M.S., da Silva, R.G., Thomson, C.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.65 Å
• R-Value Free: 0.270 
• R-Value Work: 0.236 
• R-Value Observed: 0.238 

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Hetero 8-mer - A4B4 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 275.66 kDa 
• Atom Count: 18,055 
• Modelled Residue Count: 2,326 
• Deposited Residue Count: 2,480 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP phosphoribosyltransferase regulatory subunit	A, B, C, D	388	Psychrobacter arcticus	Mutation(s): 0  Gene Names: hisZ, Psyc_0676
UniProt
Find proteins for Q4FTX3 (Psychrobacter arcticus (strain DSM 17307 / VKM B-2377 / 273-4)) Explore Q4FTX3  Go to UniProtKB:  Q4FTX3

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP phosphoribosyltransferase	E, F, G, H	232	Psychrobacter arcticus	Mutation(s): 0  Gene Names: hisG, Psyc_1903 EC: 2.4.2.17
UniProt
Find proteins for Q4FQF7 (Psychrobacter arcticus (strain DSM 17307 / VKM B-2377 / 273-4)) Explore Q4FQF7  Go to UniProtKB:  Q4FQF7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PRP	M [auth E], N [auth F], O [auth G], P [auth H]	1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose C5 H13 O14 P3 PQGCEDQWHSBAJP-TXICZTDVSA-N
HIS	I [auth A], J [auth B], K [auth C], L [auth D]	HISTIDINE C6 H10 N3 O2 HNDVDQJCIGZPNO-YFKPBYRVSA-O

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.65 Å
• R-Value Free: 0.270 
• R-Value Work: 0.236 
• R-Value Observed: 0.238 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.253	α = 90
b = 147.31	β = 103.11
c = 99.327	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-08-07 
Deposition Author(s): Alphey, M.S., da Silva, R.G., Thomson, C.M.

Revision History  

• Version 1.0: 2019-08-07
  Type: Initial release
  
• Version 1.1: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.2: 2024-01-24
  Changes: Data collection, Database references, Refinement description, Structure summary