Macromolecule Content

Total Structure Weight: 32.54 kDa
Atom Count: 2430
Residue Count: 270
Unique protein chains: 1

4FT9

Crystal Structure of the CHK1

DOI: 10.2210/pdb4FT9/pdb

Classification: TRANSFERASE/TRANSFERASE inhibitor
Organism(s): Homo sapiens
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2012-06-27 Released: 2012-08-22
Deposition Author(s): Kang, Y.N., Stuckey, J.A., Chang, P., Russell, A.J.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free: 0.206
R-Value Work: 0.160
R-Value Observed: 0.163

wwPDB Validation 3D Report Full Report

This is version 1.2 of the entry. See complete history.

Literature

Crystal Structure of the CHK1

Kang, Y.N., Stuckey, J.A., Chang, P., Russell, A.J.

To be published.

Macromolecules

Find similar proteins by:

(by identity cutoff) | Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase Chk1	A	279	Homo sapiens	Mutation(s): 0 Gene Names: CHEK1, CHK1 EC: 2.7.11.1
Find proteins for O14757 (Homo sapiens) Explore O14757 Go to UniProtKB: O14757
NIH Common Fund Data Resources
PHAROS: O14757 GTEx: ENSG00000149554
Protein Feature View Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
H4K Query on H4K Download Ideal Coordinates CCD File SDF format, chain B [A] MOL2 format, chain B [A]	A	1-(5-cyanopyrazin-2-yl)-3-isoquinolin-3-ylurea C₁₅ H₁₀ N₆ O GFPBJOCJVKFSBK-UHFFFAOYSA-N		Ligand Interaction
SO4 Query on SO4 Download Ideal Coordinates CCD File SDF format, chain C [A] MOL2 format, chain C [A]	A	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Ligand Interaction

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
H4K	Ki: 20 nM BindingDB
H4K	Ki: 20.600000381469727 nM BindingDB
H4K	IC50: 21 nM BindingDB

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free: 0.206
R-Value Work: 0.160
R-Value Observed: 0.163
Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.169	α = 90
b = 65.802	β = 93.97
c = 57.959	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
BUSTER-TNT	refinement
PDB_EXTRACT	data extraction
BUSTER	refinement

Structure Validation

View Full Validation Report

Entry History

Deposition Data

Deposited Date: 2012-06-27
Released Date: 2012-08-22

Deposition Author(s):

Revision History

Version 1.0: 2012-08-22
Type: Initial release
Version 1.1: 2013-05-29
Changes: Other
Version 1.2: 2017-11-15
Changes: Refinement description, Structure summary

RCSB PDB is funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.