5KKT

ROCK 1 bound to azaindole thiazole piperazine inhibitor

• PDB DOI: https://doi.org/10.2210/pdb5KKT/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Trichoplusia ni
• Mutation(s): No 


• Deposited: 2016-06-22 Released: 2017-06-28 
• Deposition Author(s): Jacobs, M.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.237 
• R-Value Work: 0.222 
• R-Value Observed: 0.223 

Literature

ROCK inhibitors 3: Design, synthesis and structure-activity relationships of 7-azaindole-based Rho kinase (ROCK) inhibitors

Bandarage, U.K., Cao, J., Come, J.H., Court, J.J., Gao, H., Jacobs, M.D., Marhefka, C., Nanthakumar, S., Green, J.

(2018) Bioorg Med Chem Lett 

• DOI: https://doi.org/10.1016/j.bmcl.2018.06.040

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 97.01 kDa 
• Atom Count: 6,619 
• Modelled Residue Count: 783 
• Deposited Residue Count: 830 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Rho-associated protein kinase 1	A, B	415	Homo sapiens	Mutation(s): 0  Gene Names: ROCK1 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13464 (Homo sapiens) Explore Q13464  Go to UniProtKB:  Q13464
PHAROS:  Q13464 GTEx:  ENSG00000067900

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
6U2	C [auth A], D [auth B]	2-[3-[3-(4-methylpiperazin-1-yl)propoxy]phenyl]-~{N}-[4-(1~{H}-pyrrolo[2,3-b]pyridin-3-yl)-1,3-thiazol-2-yl]ethanamide C26 H30 N6 O2 S KWQRIWDMNAKJAF-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
6U2	BindingDB:  5KKT	Ki: min: 1, max: 6 (nM) from 2 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.237 
• R-Value Work: 0.222 
• R-Value Observed: 0.223 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 182.91	α = 90
b = 182.91	β = 90
c = 90.56	γ = 120

Software Package:

Software Name	Purpose
BUSTER-TNT	refinement
d*TREK	data scaling
PDB_EXTRACT	data extraction
d*TREK	data reduction
BUSTER-TNT	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-06-28 
Deposition Author(s): Jacobs, M.D.

Revision History  

• Version 1.0: 2017-06-28
  Type: Initial release
  
• Version 1.1: 2017-11-22
  Changes: Refinement description
• Version 1.2: 2018-07-11
  Changes: Data collection, Database references, Structure summary
• Version 1.3: 2023-09-27
  Changes: Data collection, Database references, Refinement description