6EM2 | pdb_00006em2

Crystal structure of the Protein-Kinase A catalytic subunit from Criteculus Griseus in complex with Fasudil

• PDB DOI: https://doi.org/10.2210/pdb6EM2/pdb

• Classification: TRANSFERASE
• Organism(s): Cricetulus griseus
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2017-10-01 Released: 2018-10-10 
• Deposition Author(s): Mueller, J.M., Heine, A., Klebe, G.
• Funding Organization(s): Loewe-Corporation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 
  0.152 (Depositor), 0.153 (DCC) 
• R-Value Work: 
  0.132 (Depositor), 0.134 (DCC) 
• R-Value Observed: 
  0.133 (Depositor) 

Literature

Conceptional Design of Self-Assembling Bisubstrate-like Inhibitors of Protein Kinase A Resulting in a Boronic Acid Glutamate Linkage

Mueller, J.M., Kirschner, R., Geyer, A., Klebe, G.

(2019) ACS Omega 

• DOI: https://doi.org/10.1021/acsomega.8b02364

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: 41.6 kDa 
• Atom Count: 3,173 
• Modeled Residue Count: 340 
• Deposited Residue Count: 353 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
cAMP-dependent protein kinase catalytic subunit alpha	A	353	Cricetulus griseus	Mutation(s): 0  Gene Names: PRKACA EC: 2.7.11.11
UniProt
Find proteins for P25321 (Cricetulus griseus) Explore P25321  Go to UniProtKB:  P25321

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
M77	B [auth A]	5-(1,4-DIAZEPAN-1-SULFONYL)ISOQUINOLINE C14 H17 N3 O2 S NGOGFTYYXHNFQH-UHFFFAOYSA-N
MPD	C [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	A	L-PEPTIDE LINKING	C3 H8 N O6 P		SER
TPO	A	L-PEPTIDE LINKING	C4 H10 N O6 P		THR

Binding Affinity Annotations
ID	Source	Binding Affinity
M77	BindingDB:  6EM2	Ki: min: 460, max: 1600 (nM) from 2 assay(s)
		IC50: min: 541, max: 7605 (nM) from 12 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free:  0.152 (Depositor), 0.153 (DCC) 
• R-Value Work:  0.132 (Depositor), 0.134 (DCC) 
• R-Value Observed: 0.133 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.27	α = 90
b = 71.967	β = 90
c = 97.982	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2018-10-10 
Deposition Author(s): Mueller, J.M., Heine, A., Klebe, G.

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Funding Organization	Location	Grant Number
Loewe-Corporation	Germany	--

Revision History  

• Version 1.0: 2018-10-10
  Type: Initial release
  
• Version 1.1: 2019-05-15
  Changes: Data collection, Database references, Structure summary
• Version 1.2: 2024-11-20
  Changes: Data collection, Database references, Structure summary