2E9U | pdb_00002e9u

Structure of h-CHK1 complexed with A780125

PDB DOI: https://doi.org/10.2210/pdb2E9U/pdb

Classification: TRANSFERASE
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2007-01-27 Released: 2008-01-29
Deposition Author(s): Park, C.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free:
0.277 (Depositor)
R-Value Work:
0.227 (Depositor)
R-Value Observed:
0.242 (Depositor)

wwPDB Validation 3D Report Full Report

Validation slider image for 2E9U

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

Literature

Structure-Based Design, Synthesis and Biological Evaluation of Potent Selective Macrocyclic Chk1 Inhibitors

Tong, Y., Claiborne, A., Stewart, K.D., Park, C., Kovar, P., Chen, Z., Credo, R.B., Gwaltney, S.L., Zhang, H., Rosenberg, S.H., Sham, H.L., Sowin, T.J., Lin, N.H.

To be published.

Macromolecule Content

Total Structure Weight: 31.42 kDa
Atom Count: 2,491
Modeled Residue Count: 269
Deposited Residue Count: 269
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase Chk1	A	269	Homo sapiens	Mutation(s): 0 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O14757 (Homo sapiens) Explore O14757 Go to UniProtKB: O14757
PHAROS: O14757 GTEx: ENSG00000149554
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	O14757
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A25 Query on A25 Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	18-CHLORO-11,12,13,14-TETRAHYDRO-1H,10H-8,4-(AZENO)-9,15,1,3,6-BENZODIOXATRIAZACYCLOHEPTADECIN-2-ONE C₁₆ H₁₇ Cl N₄ O₃ JRSWWYITYIOHOP-UHFFFAOYSA-N		Interactions Focus chain B [auth A]

Binding Affinity Annotations
ID	Source	Binding Affinity
A25	BindingDB: 2E9U	Ki: 7.9 (nM) from 1 assay(s)
A25	BindingDB: 2E9U	IC50: 10 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.277 (Depositor)
R-Value Work: 0.227 (Depositor)
R-Value Observed: 0.242 (Depositor)

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.075	α = 90
b = 65.82	β = 94.37
c = 57.945	γ = 90

Software Package:

Software Name	Purpose
CNX	refinement
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

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View more in-depth experimental data

Entry History

Deposition Data

Released Date: 2008-01-29

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2008-01-29
Type: Initial release
Version 1.1: 2011-07-13
Changes: Version format compliance
Version 1.2: 2024-03-13
Changes: Data collection, Database references, Derived calculations

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.