1A9T

BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH 9-DEAZAINOSINE AND PHOSPHATE

• PDB DOI: https://doi.org/10.2210/pdb1A9T/pdb

• Classification: TRANSFERASE
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 1998-04-10 Released: 1998-06-17 
• Deposition Author(s): Mao, C., Cook, W.J., Zhou, M., Fedorov, A.A., Almo, S.C., Ealick, S.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.190 
• R-Value Observed: 0.190 

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 31.93 kDa 
• Atom Count: 2,295 
• Modelled Residue Count: 284 
• Deposited Residue Count: 284 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PURINE NUCLEOSIDE PHOSPHORYLASE	A	284	Bos taurus	Mutation(s): 0  EC: 2.4.2.1
UniProt
Find proteins for P55859 (Bos taurus) Explore P55859  Go to UniProtKB:  P55859

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
R1P	B [auth A]	1-O-phosphono-alpha-D-ribofuranose C5 H11 O8 P YXJDFQJKERBOBM-TXICZTDVSA-N
HPA	C [auth A]	HYPOXANTHINE C5 H4 N4 O FDGQSTZJBFJUBT-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.190 
• R-Value Observed: 0.190 
• Space Group: P 2₁ 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 94.2	α = 90
b = 94.2	β = 90
c = 94.2	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
SDMS	data reduction
SDMS	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-06-17 
Deposition Author(s): Mao, C., Cook, W.J., Zhou, M., Fedorov, A.A., Almo, S.C., Ealick, S.E.

Revision History  

• Version 1.0: 1998-06-17
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Other, Structure summary
• Version 2.1: 2023-08-02
  Changes: Database references, Refinement description, Structure summary