1QR0

CRYSTAL STRUCTURE OF THE 4'-PHOSPHOPANTETHEINYL TRANSFERASE SFP-COENZYME A COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of the surfactin synthetase-activating enzyme sfp: a prototype of the 4'-phosphopantetheinyl transferase superfamily.

Reuter, K.Mofid, M.R.Marahiel, M.A.Ficner, R.

(1999) EMBO J. 18: 6823-6831

  • DOI: 10.1093/emboj/18.23.6823
  • Also Cited By: 2GE0, 2GE1

  • PubMed Abstract: 
  • The Bacillus subtilis Sfp protein activates the peptidyl carrier protein (PCP) domains of surfactin synthetase by transferring the 4'-phosphopantetheinyl moiety of coenzyme A (CoA) to a serine residue conserved in all PCPs. Its wide PCP substrate spe ...

    The Bacillus subtilis Sfp protein activates the peptidyl carrier protein (PCP) domains of surfactin synthetase by transferring the 4'-phosphopantetheinyl moiety of coenzyme A (CoA) to a serine residue conserved in all PCPs. Its wide PCP substrate spectrum renders Sfp a biotechnologically valuable enzyme for use in combinatorial non-ribosomal peptide synthesis. The structure of the Sfp-CoA complex determined at 1.8 A resolution reveals a novel alpha/beta-fold exhibiting an unexpected intramolecular 2-fold pseudosymmetry. This suggests a similar fold and dimerization mode for the homodimeric phosphopantetheinyl transferases such as acyl carrier protein synthase. The active site of Sfp accommodates a magnesium ion, which is complexed by the CoA pyrophosphate, the side chains of three acidic amino acids and one water molecule. CoA is bound in a fashion that differs in many aspects from all known CoA-protein complex structures. The structure reveals regions likely to be involved in the interaction with the PCP substrate.


    Related Citations: 
    • Crystallization and preliminary crystallographic studies of Sfp: a phosphopantetheinyl transferase of modular peptide synthetases
      Mofid, R.M.,Ficner, R.,Marahiel, A.M.,Reuter, K.
      (1999) Acta Crystallogr.,Sect.D 55: 1098


    Organizational Affiliation

    Institut für Molekularbiologie und Tumorforschung, Philipps-Universität Marburg, Emil-Mannkopff-Strasse 2, D-35037 Marburg.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
4'-PHOSPHOPANTETHEINYL TRANSFERASE SFP
A
228Bacillus subtilis (strain 168)Gene Names: sfp (lpa-8)
EC: 2.7.8.-
Find proteins for P39135 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P39135
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
COA
Query on COA

Download SDF File 
Download CCD File 
A
COENZYME A
C21 H36 N7 O16 P3 S
RGJOEKWQDUBAIZ-IBOSZNHHSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.216 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 65.300α = 90.00
b = 65.300β = 90.00
c = 150.300γ = 90.00
Software Package:
Software NamePurpose
SHARPphasing
SCALEPACKdata scaling
X-PLORrefinement
MAR345data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-12-10
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description