1CSN

BINARY COMPLEX OF CASEIN KINASE-1 WITH MGATP

• PDB DOI: https://doi.org/10.2210/pdb1CSN/pdb

• Classification: PHOSPHOTRANSFERASE
• Organism(s): Schizosaccharomyces pombe
• Mutation(s): No 


• Deposited: 1995-04-25 Released: 1995-07-31 
• Deposition Author(s): Xu, R.-M., Cheng, X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 
  0.207 (Depositor) 
• R-Value Observed: 
  0.207 (Depositor) 

Literature

Crystal structure of casein kinase-1, a phosphate-directed protein kinase.

Xu, R.M., Carmel, G., Sweet, R.M., Kuret, J., Cheng, X.

(1995) EMBO J 14: 1015-1023

• PubMed: 7889932 
• DOI: https://doi.org/10.1002/j.1460-2075.1995.tb07082.x
• Primary Citation of Related Structures:  
  1CSN


• PubMed Abstract: 
  

  The structure of a truncated variant of casein kinase-1 from Schizosaccharomyces pombe, has been determined in complex with MgATP at 2.0 A resolution. The model resembles the 'closed', ATP-bound conformations of the cyclin-dependent kinase 2 and the cAMP-dependent protein kinase, with clear differences in the structure of surface loops that impart unique features to casein kinase-1. The structure is of unphosphorylated, active conformation of casein kinase-1 and the peptide-binding site is fully accessible to substrate.

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Organizational Affiliation: 

W.M. Keck Structural Biology Laboratory, Cold Spring Harbor, NY 11724.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 35.1 kDa 
• Atom Count: 2,531 
• Modelled Residue Count: 293 
• Deposited Residue Count: 298 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CASEIN KINASE-1	A	298	Schizosaccharomyces pombe	Mutation(s): 0  EC: 2.7.1 (PDB Primary Data), 2.7.11.1 (UniProt)
UniProt
Find proteins for P40233 (Schizosaccharomyces pombe (strain 972 / ATCC 24843)) Explore P40233  Go to UniProtKB:  P40233

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	E [auth A]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
SO4	C [auth A], D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
MG	B [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work:  0.207 (Depositor) 
• R-Value Observed: 0.207 (Depositor) 

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.96	α = 90
b = 78.96	β = 90
c = 120.38	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MADNES	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-07-31 
Deposition Author(s): Xu, R.-M., Cheng, X.

Revision History  

• Version 1.0: 1995-07-31
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations, Other