6SQ1

Crystal structure of cAMP-dependent Protein Kinase A (CHO PKA) in complex with Aminofasudil

• PDB DOI: https://doi.org/10.2210/pdb6SQ1/pdb

• Classification: TRANSFERASE
• Organism(s): Cricetulus griseus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2019-09-03 Released: 2020-09-30 
• Deposition Author(s): Oebbeke, M., Siefker, C., Heine, A., Klebe, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.49 Å
• R-Value Free: 0.177 
• R-Value Work: 0.142 
• R-Value Observed: 0.144 

Literature

A crystallographic study of cAMP-dependent Protein Kinase A in complex with different Fasudil-derivatives

Oebbeke, M., Wienen-Schmidt, B., Gerber, H.-D., Heine, A., Klebe, G.

To be published.

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: 41.81 kDa 
• Atom Count: 3,215 
• Modelled Residue Count: 338 
• 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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
LRT (Subject of Investigation/LOI)	D [auth A]	5-(1,4-diazepan-1-ylsulfonyl)isoquinolin-1-amine C14 H18 N4 O2 S QITCSTCJTLZZMU-UHFFFAOYSA-N
MPD	B [auth A], C [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N
DMS	E [auth A], F [auth A]	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.49 Å
• R-Value Free: 0.177 
• R-Value Work: 0.142 
• R-Value Observed: 0.144 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.024	α = 90
b = 71.541	β = 90
c = 97.458	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-09-30 
Deposition Author(s): Oebbeke, M., Siefker, C., Heine, A., Klebe, G.

Revision History  

• Version 1.0: 2020-09-30
  Type: Initial release
  
• Version 1.1: 2024-01-24
  Changes: Data collection, Database references, Refinement description