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 

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Ligand Structure Quality Assessment 


This is version 1.6 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: https://doi.org/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. 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
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DIACYLGLYCEROL KINASE
A, B, C, D, E
A, B, C, D, E, F
130Escherichia coli K-12Mutation(s): 7 
EC: 2.7.1.107
Membrane Entity: Yes 
UniProt
Find proteins for P0ABN1 (Escherichia coli (strain K12))
Explore P0ABN1 
Go to UniProtKB:  P0ABN1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0ABN1
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
78M
Query on 78M

Download Ideal Coordinates CCD File 
J [auth A]
K [auth A]
S [auth D]
T [auth D]
U [auth D]
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
78N
Query on 78N

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G [auth A]
H [auth A]
I [auth A]
L [auth B]
M [auth B]
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
FLC
Query on FLC

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Q [auth D]CITRATE ANION
C6 H5 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-K
ZN
Query on ZN

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P [auth D]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
ACT
Query on ACT

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R [auth D]ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
NA
Query on NA

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W [auth E],
X [auth F]
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
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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Ligand Structure Quality Assessment 


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
  • Version 1.5: 2023-03-29
    Changes: Database references, Derived calculations, Other, Structure summary
  • Version 1.6: 2024-06-19
    Changes: Data collection