Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Macromolecule Content

• Total Structure Weight: 43.06 kDa 
• Atom Count: 3075 
• Modelled Residue Count: 361 
• Deposited Residue Count: 370 
• Unique protein chains: 2

1APM

2.0 ANGSTROM REFINED CRYSTAL STRUCTURE OF THE CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE COMPLEXED WITH A PEPTIDE INHIBITOR AND DETERGENT

• DOI: 10.2210/pdb1APM/pdb

• Classification: TRANSFERASE(PHOSPHOTRANSFERASE)
• Organism(s): Mus musculus
• Mutation(s): Yes 


• Deposited: 1993-01-18 Released: 1993-04-15 
• Deposition Author(s): Knighton, D.R., Bell, S.M., Zheng, J., Teneyck, L.F., Xuong, N.-H., Taylor, S.S., Sowadski, J.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.186 

Literature

2.0 A refined crystal structure of the catalytic subunit of cAMP-dependent protein kinase complexed with a peptide inhibitor and detergent.

Knighton, D.R., Bell, S.M., Zheng, J., Ten Eyck, L.F., Xuong, N.H., Taylor, S.S., Sowadski, J.M.

(1993) Acta Crystallogr D Biol Crystallogr 49: 357-361

• PubMed: 15299526 
• DOI: 10.1107/S0907444993000502
• Primary Citation of Related Structures:  
  1APM


• PubMed Abstract: 
  

. A mutant (Serl39Ala) of the mouse recombinant catalytic (C) subunit of cAMP-dependent protein kinase was co-crystallized with a peptide inhibitor, PKI(5-24), and MEGA-8 (octanoyl-N-methylglucamide) detergent. This structure was refined using all observed data (30 248 reflections) between 30 and 1.95 A resolution to an R factor of 0.186. R.m.s. deviations of bond lengths and bond angles are 0.013 A and 2.3 degrees, respectively. The final model has 3075 atoms (207 solvent) with a mean B factor of 31.9 A(2). The placement of invariant protein-kinase residues and most C:PKI(5-24) interactions were confirmed, but register errors affecting residues 55-64 and 309-339 were corrected during refinement by shifting the affected sequences toward the C terminus along the previously determined backbone path. New details of C:PKI(5-24) interactions and the Ser338 autophosphorylation site are described, and the acyl group binding site near the catalytic subunit NH(2) terminus is identified.

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Related Citations: 

• Crystal Structure of the Catalytic Subunit of cAMP-Dependent Protein Kinase Complexed with Mg/ATP and Peptide Inhibitor
  Zheng, J., Knighton, D.R., Teneyck, L.F., Karlsson, R., Xuong, N.-H., Taylor, S.S., Sowadski, J.M.
  (1993) Biochemistry 32: 2154

• Crystal Structure of the Catalytic Subunit of Cyclic Adenosine Monophosphate-Dependent Protein Kinase
  Knighton, D.R., Zheng, J., Teneyck, L.F., Ashford, V.A., Xuong, N.-H., Taylor, S.S., Sowadski, J.M.
  (1991) Science 253: 407

• Structure of a Peptide Inhibitor Bound to the Catalytic Subunit of Cyclic Adenosine Monophosphate-Dependent Protein Kinase
  Knighton, D.R., Zheng, J., Teneyck, L.F., Xuong, N.-H., Taylor, S.S., Sowadski, J.M.
  (1991) Science 253: 414

• Expression of the Catalytic Subunit of C/AMP-Dependent Protein Kinase in Escherichia Coli
  Slice, L.W., Taylor, S.S.
  (1989) J Biol Chem 264: 20940

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Organizational Affiliation: 

Department of Chemistry, University of California, San Diego, La Jolla 92093-0654, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
cAMP-DEPENDENT PROTEIN KINASE	A [auth E]	350	Mus musculus	Mutation(s): 1  Gene Names: Prkaca, Pkaca EC: 2.7.1.37 (PDB Primary Data), 2.7.11.11 (UniProt)
UniProt
Find proteins for P05132 (Mus musculus) Explore P05132  Go to UniProtKB:  P05132

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PEPTIDE INHIBITOR PKI(5-24)	B [auth I]	20	Mus musculus	Mutation(s): 0  Gene Names: Pkia
UniProt
Find proteins for P63248 (Mus musculus) Explore P63248  Go to UniProtKB:  P63248

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
OCT	C [auth E]	N-OCTANE C8 H18 TVMXDCGIABBOFY-UHFFFAOYSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.186 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.84	α = 90
b = 75.76	β = 90
c = 81.01	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
TNT	refinement
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1993-01-18 
• Released Date: 1993-04-15 
Deposition Author(s): Knighton, D.R., Bell, S.M., Zheng, J., Teneyck, L.F., Xuong, N.-H., Taylor, S.S., Sowadski, J.M.

Revision History  

• Version 1.0: 1993-04-15
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-07-17
  Changes: Data collection, Derived calculations, Other, Refinement description
• Version 1.4: 2019-08-14
  Changes: Data collection, Refinement description