4FKR

Crystal structure of the cdk2 in complex with oxindole inhibitor

• PDB DOI: https://doi.org/10.2210/pdb4FKR/pdb

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


• Deposited: 2012-06-13 Released: 2013-05-08 
• Deposition Author(s): Kang, Y.N., Stuckey, J.A.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.213 
• R-Value Work: 0.174 
• R-Value Observed: 0.176 

Starting Model: experimental

Literature

Crystal structure of the cdk2 in complex with oxindole inhibitor

Kang, Y.N., Stuckey, J.A.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 34.48 kDa 
• Atom Count: 2,560 
• Modelled Residue Count: 283 
• Deposited Residue Count: 299 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cyclin-dependent kinase 2	A	299	Homo sapiens	Mutation(s): 1  Gene Names: CDK2, CDKN2 EC: 2.7.11.22
UniProt & NIH Common Fund Data Resources
Find proteins for P24941 (Homo sapiens) Explore P24941  Go to UniProtKB:  P24941
PHAROS:  P24941 GTEx:  ENSG00000123374

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
45K	B [auth A]	(8Z)-8-{[(2,2-dioxido-1,3-dihydro-2-benzothiophen-5-yl)amino]methylidene}-6,8-dihydro-7H-[1,3]thiazolo[5,4-e]indol-7-one C18 H13 N3 O3 S2 DOXLZSAKRJWFJV-MLPAPPSSSA-N
GOL	C [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
45K	BindingDB:  4FKR	Kd: min: 35.8, max: 229 (nM) from 2 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.213 
• R-Value Work: 0.174 
• R-Value Observed: 0.176 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.581	α = 90
b = 72.074	β = 90
c = 72.128	γ = 90

Software Package:

Software Name	Purpose
MD2	data collection
PHASER	phasing
BUSTER	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-05-08 
Deposition Author(s): Kang, Y.N., Stuckey, J.A.

Revision History  

• Version 1.0: 2013-05-08
  Type: Initial release
  
• Version 1.1: 2013-05-22
  Changes: Other
• Version 1.2: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.3: 2024-11-27
  Changes: Structure summary