5WRZ

Structure of human PARP1 catalytic domain bound to a phthalazinone inhibitor

• PDB DOI: https://doi.org/10.2210/pdb5WRZ/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2016-12-04 Released: 2017-01-25 
• Deposition Author(s): Cao, R., Wang, Y.L., Zhou, J., Huang, N., Xu, B.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.280 
• R-Value Work: 0.230 
• R-Value Observed: 0.233 

Literature

Structure of human PARP1 catalytic domain bound to a phthalazinone inhibitor

Cao, R., Wang, Y.L., Zhou, J., Huang, N., Xu, B.L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 79.4 kDa 
• Atom Count: 5,584 
• Modelled Residue Count: 702 
• Deposited Residue Count: 704 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Poly [ADP-ribose] polymerase 1	A, B	352	Homo sapiens	Mutation(s): 1  Gene Names: PARP1 EC: 2.4.2.30
UniProt & NIH Common Fund Data Resources
Find proteins for P09874 (Homo sapiens) Explore P09874  Go to UniProtKB:  P09874
PHAROS:  P09874 GTEx:  ENSG00000143799

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
7U3	C [auth A], D [auth B]	7-fluoranyl-4-[[(3R)-pyrrolidin-3-yl]methoxy]-2H-phthalazin-1-one C13 H14 F N3 O2 PARCVGQDXZYJOY-MRVPVSSYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.280 
• R-Value Work: 0.230 
• R-Value Observed: 0.233 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.77	α = 90
b = 92.35	β = 90
c = 163.2	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-01-25 
Deposition Author(s): Cao, R., Wang, Y.L., Zhou, J., Huang, N., Xu, B.L.

Revision History  

• Version 1.0: 2017-01-25
  Type: Initial release
  
• Version 1.1: 2024-03-20
  Changes: Data collection, Database references