2PMP

Structure of 2C-methyl-D-erythritol 2,4-cyclodiphosphate synthase from the isoprenoid biosynthetic pathway of Arabidopsis thaliana


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Biosynthesis of isoprenoids in plants: Structure of the 2C-methyl-D-erithrytol 2,4-cyclodiphosphate synthase from Arabidopsis thaliana. Comparison with the bacterial enzymes.

Calisto, B.M.Perez-Gil, J.Bergua, M.Querol-Audi, J.Fita, I.Imperial, S.

(2007) Protein Sci. 16: 2082-2088

  • DOI: 10.1110/ps.072972807

  • PubMed Abstract: 
  • The X-ray crystal structure of the 2C-methyl-D-erythritol 2,4-cyclodiphosphate synthase (MCS) from Arabidopsis thaliana has been solved at 2.3 A resolution in complex with a cytidine-5-monophosphate (CMP) molecule. This is the first structure determi ...

    The X-ray crystal structure of the 2C-methyl-D-erythritol 2,4-cyclodiphosphate synthase (MCS) from Arabidopsis thaliana has been solved at 2.3 A resolution in complex with a cytidine-5-monophosphate (CMP) molecule. This is the first structure determined of an MCS enzyme from a plant. Major differences between the A. thaliana and bacterial MCS structures are found in the large molecular cavity that forms between subunits and involve residues that are highly conserved among plants. In some bacterial enzymes, the corresponding cavity has been shown to be an isoprenoid diphosphate-like binding pocket, with a proposed feedback-regulatory role. Instead, in the structure from A. thaliana the cavity is unsuited for binding a diphosphate moiety, which suggests a different regulatory mechanism of MCS enzymes between bacteria and plants.


    Organizational Affiliation

    Institut de Biologia Molecular de Barcelona-CSIC and Institut de Recerca Biomedica, Parc Cientific de Barcelona, 08028 Barcelona, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase
A
160Arabidopsis thalianaMutation(s): 0 
Gene Names: ISPF (MCS, MDS)
EC: 4.6.1.12
Find proteins for Q9CAK8 (Arabidopsis thaliana)
Go to UniProtKB:  Q9CAK8
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

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Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
ZN
Query on ZN

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Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
C5P
Query on C5P

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Download CCD File 
A
CYTIDINE-5'-MONOPHOSPHATE
C9 H14 N3 O8 P
IERHLVCPSMICTF-XVFCMESISA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.198 
  • Space Group: I 41 3 2
Unit Cell:
Length (Å)Angle (°)
a = 135.795α = 90.00
b = 135.795β = 90.00
c = 135.795γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
AMoREphasing
PDB_EXTRACTdata extraction
MOLREPphasing
SCALEPACKdata scaling
REFMACrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-09-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.2: 2017-10-18
    Type: Refinement description