2KDC

NMR Solution Structure of E. coli diacylglycerol kinase (DAGK) in DPC micelles


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 48 
  • Conformers Submitted: 16 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Solution nuclear magnetic resonance structure of membrane-integral diacylglycerol kinase

Van Horn, W.D.Kim, H.J.Ellis, C.D.Hadziselimovic, A.Sulistijo, E.S.Karra, M.D.Tian, C.Sonnichsen, F.D.Sanders, C.R.

(2009) Science 324: 1726-1729

  • DOI: 10.1126/science.1171716

  • PubMed Abstract: 
  • Escherichia coli diacylglycerol kinase (DAGK) represents a family of integral membrane enzymes that is unrelated to all other phosphotransferases. We have determined the three-dimensional structure of the DAGK homotrimer with the use of solution nucl ...

    Escherichia coli diacylglycerol kinase (DAGK) represents a family of integral membrane enzymes that is unrelated to all other phosphotransferases. We have determined the three-dimensional structure of the DAGK homotrimer with the use of solution nuclear magnetic resonance. The third transmembrane helix from each subunit is domain-swapped with the first and second transmembrane segments from an adjacent subunit. Each of DAGK's three active sites resembles a portico. The cornice of the portico appears to be the determinant of DAGK's lipid substrate specificity and overhangs the site of phosphoryl transfer near the water-membrane interface. Mutations to cysteine that caused severe misfolding were located in or near the active site, indicating a high degree of overlap between sites responsible for folding and for catalysis.


    Organizational Affiliation

    Department of Biochemistry and Center for Structural Biology, Vanderbilt University, Nashville, TN 37232, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Diacylglycerol kinase
A, B, C
121Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: dgkA
EC: 2.7.1.107
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Phosphotransferases
Protein: 
DgkA diacylglycerol kinase (DAGK)
Find proteins for P0ABN1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ABN1
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 48 
  • Conformers Submitted: 16 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2KDC Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-07-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance