6FTT

ATP phosphoribosyltransferase (HisZG ATPPRT) from Psychrobacter arcticus in complex with PRPP

• PDB DOI: https://doi.org/10.2210/pdb6FTT/pdb

• Classification: TRANSFERASE
• Organism(s): Psychrobacter arcticus 273-4
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-02-23 Released: 2018-10-24 
• Deposition Author(s): Alphey, M.S., Ge, Y., Fisher, G., Czekster, C.M., Naismith, J.H., da Silva, R.G.
• Funding Organization(s): Biotechnology and Biological Sciences Research Council

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.29 Å
• R-Value Free: 0.237 
• R-Value Work: 0.193 
• R-Value Observed: 0.195 

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: 275.56 kDa 
• Atom Count: 18,887 
• Modelled Residue Count: 2,346 
• 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 [auth C], C [auth B], D	388	Psychrobacter arcticus 273-4	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 [auth H], G, H [auth F]	232	Psychrobacter arcticus 273-4	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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PRP (Subject of Investigation/LOI)	AA [auth F], R [auth E], T [auth H], W [auth G]	1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose C5 H13 O14 P3 PQGCEDQWHSBAJP-TXICZTDVSA-N
CL	BA [auth F], J [auth A], L [auth C], N [auth B], P [auth D], Q [auth D], S [auth E], U [auth H], V [auth H], X [auth G], Y [auth G], Z [auth G]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG	I [auth A], K [auth C], M [auth B], O [auth D]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.29 Å
• R-Value Free: 0.237 
• R-Value Work: 0.193 
• R-Value Observed: 0.195 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.77	α = 90
b = 147.79	β = 103.05
c = 98.94	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 & Funding Information

Deposition Data

• Released Date: 2018-10-24 
Deposition Author(s): Alphey, M.S., Ge, Y., Fisher, G., Czekster, C.M., Naismith, J.H., da Silva, R.G.

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Funding Organization	Location	Grant Number
Biotechnology and Biological Sciences Research Council	United Kingdom	BB/M010996/1

Revision History  

• Version 1.0: 2018-10-24
  Type: Initial release
  
• Version 1.1: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.2: 2024-01-17
  Changes: Data collection, Database references, Refinement description, Structure summary