1CKK

CALMODULIN/RAT CA2+/CALMODULIN DEPENDENT PROTEIN KINASE FRAGMENT


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 30 
  • Selection Criteria: LOWEST ENERGY 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

A novel target recognition revealed by calmodulin in complex with Ca2+-calmodulin-dependent kinase kinase.

Osawa, M.Tokumitsu, H.Swindells, M.B.Kurihara, H.Orita, M.Shibanuma, T.Furuya, T.Ikura, M.

(1999) Nat.Struct.Mol.Biol. 6: 819-824

  • DOI: 10.1038/12271

  • PubMed Abstract: 
  • The structure of calcium-bound calmodulin (Ca2+/CaM) complexed with a 26-residue peptide, corresponding to the CaM-binding domain of rat Ca2+/CaM-dependent protein kinase kinase (CaMKK), has been determined by NMR spectroscopy. In this complex, the C ...

    The structure of calcium-bound calmodulin (Ca2+/CaM) complexed with a 26-residue peptide, corresponding to the CaM-binding domain of rat Ca2+/CaM-dependent protein kinase kinase (CaMKK), has been determined by NMR spectroscopy. In this complex, the CaMKK peptide forms a fold comprising an alpha-helix and a hairpin-like loop whose C-terminus folds back on itself. The binding orientation of this CaMKK peptide by the two CaM domains is opposite to that observed in all other CaM-target complexes determined so far. The N- and C-terminal hydrophobic pockets of Ca2+/CaM anchor Trp 444 and Phe 459 of the CaMKK peptide, respectively. This 14-residue separation between two key hydrophobic groups is also unique among previously determined CaM complexes. The present structure represents a new and distinct class of Ca2+/CaM target recognition that may be shared by other Ca2+/CaM-stimulated proteins.


    Organizational Affiliation

    Molecular Chemistry Research, Chemistry Laboratories, Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Co., Ltd., Tsukuba 305-8585, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Calmodulin-1
A
148Xenopus laevisMutation(s): 0 
Gene Names: calm2-b
Find proteins for P0DP35 (Xenopus laevis)
Go to UniProtKB:  P0DP35
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Calcium/calmodulin-dependent protein kinase kinase 1
B
26Rattus norvegicusMutation(s): 0 
Gene Names: Camkk1
EC: 2.7.11.17
Find proteins for P97756 (Rattus norvegicus)
Go to UniProtKB:  P97756
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 30 
  • Selection Criteria: LOWEST ENERGY 
  • Olderado: 1CKK Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-09-10
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-06-27
    Type: Data collection, Database references, Derived calculations, Source and taxonomy, Structure summary