3ZE3

Crystal structure of the integral membrane diacylglycerol kinase - delta7

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history. 


Literature

Crystal Structure of the Integral Membrane Diacylglycerol Kinase.

Li, D., Lyons, J.A., Pye, V.E., Vogeley, L., Aragao, D., Kenyon, C.P., Shah, S.T.A., Doherty, C., Aherne, M., Caffrey, M.

(2013) Nature 497: 521

  • DOI: 10.1038/nature12179
  • Primary Citation of Related Structures:  
    3ZE3, 3ZE4, 3ZE5

  • PubMed Abstract: 

    • Diacylglycerol kinase catalyses the ATP-dependent phosphorylation of diacylglycerol to phosphatidic acid for use in shuttling water-soluble components to membrane-derived oligosaccharide and lipopolysaccharide in the cell envelope of Gram-negative bacteria ...

    Diacylglycerol kinase catalyses the ATP-dependent phosphorylation of diacylglycerol to phosphatidic acid for use in shuttling water-soluble components to membrane-derived oligosaccharide and lipopolysaccharide in the cell envelope of Gram-negative bacteria. For half a century, this 121-residue kinase has served as a model for investigating membrane protein enzymology, folding, assembly and stability. Here we present crystal structures for three functional forms of this unique and paradigmatic kinase, one of which is wild type. These reveal a homo-trimeric enzyme with three transmembrane helices and an amino-terminal amphiphilic helix per monomer. Bound lipid substrate and docked ATP identify the putative active site that is of the composite, shared site type. The crystal structures rationalize extensive biochemical and biophysical data on the enzyme. They are, however, at variance with a published solution NMR model in that domain swapping, a key feature of the solution form, is not observed in the crystal structures.

    Organizational Affiliation: 

    School of Biochemistry and Immunology & School of Medicine, Trinity College Dublin, Dublin 2, Ireland.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DIACYLGLYCEROL KINASEA, B, C, D, E, F130Escherichia coli K-12Mutation(s): 7 
Gene Names: dgkA, b4042, JW4002
EC: 2.7.1.107
Membrane protein
Mpstruc		Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group: 
Phosphotransferases		Protein: 
DgkA diacylglycerol kinase (DAGK) with bound monoacylglycerol (7.8 MAG)
Find proteins for P0ABN1 (Escherichia coli (strain K12))
Explore P0ABN1 
Go to UniProtKB:  P0ABN1
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
78N
Query on 78N
Download Ideal Coordinates CCD File 
 G [auth A], H [auth A], I [auth A], L [auth B], M [auth B], N [auth C], O [auth C](2R)-2,3-DIHYDROXYPROPYL(7Z)-PENTADEC-7-ENOATE
C18 H34 O4
BJMLBVHMHXYQFS-XZVRFQMRSA-N		 Ligand Interaction
78M
Query on 78M
Download Ideal Coordinates CCD File 
 J [auth A], K [auth A], S [auth D], T [auth D], U [auth D], V [auth D](2S)-2,3-DIHYDROXYPROPYL(7Z)-PENTADEC-7-ENOATE
C18 H34 O4
BJMLBVHMHXYQFS-JJEJIETFSA-N		 Ligand Interaction
FLC
Query on FLC
Download Ideal Coordinates CCD File 
 Q [auth D]CITRATE ANION
C6 H5 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-K		 Ligand Interaction
ZN
Query on ZN
Download Ideal Coordinates CCD File 
 P [auth D]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
ACT
Query on ACT
Download Ideal Coordinates CCD File 
 R [auth D]ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M		 Ligand Interaction
NA
Query on NA
Download Ideal Coordinates CCD File 
 W [auth E], X [auth F]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.06α = 90
b = 91.54β = 90
c = 143.65γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
SHELXphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-05-22
    Type: Initial release
  • Version 1.1: 2013-05-29
    Changes: Database references
  • Version 1.2: 2013-06-05
    Changes: Database references
  • Version 1.3: 2019-03-06
    Changes: Data collection, Experimental preparation, Other
  • Version 1.4: 2019-04-03
    Changes: Data collection, Experimental preparation