8ERN

Cyclin-free CDK2 in complex with Cpd21

• PDB DOI: https://doi.org/10.2210/pdb8ERN/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2022-10-12 Released: 2023-10-18 
• Deposition Author(s): Murray, J.M., Oh, A.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free: 0.250 
• R-Value Work: 0.207 
• R-Value Observed: 0.210 

Literature

Cyclin-free CDK2 in complex with Cpd21

Murray, J.M., Oh, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 34.66 kDa 
• Atom Count: 2,476 
• Modelled Residue Count: 288 
• 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): 0  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
WQK (Subject of Investigation/LOI)	C [auth A]	N,3-dimethyl-4-({7-[(2S)-2-methylpyrrolidine-1-carbonyl]quinazolin-2-yl}amino)benzene-1-sulfonamide C22 H25 N5 O3 S PPNFYCHMLYDQET-HNNXBMFYSA-N
GOL	B [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free: 0.250 
• R-Value Work: 0.207 
• R-Value Observed: 0.210 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.681	α = 90
b = 72.655	β = 90
c = 71.702	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-10-18 
Deposition Author(s): Murray, J.M., Oh, A.

---

Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-10-18
  Type: Initial release