2WAS

Structure of the fungal type I FAS PPT domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Multimeric Options for the Auto-Activation of the Saccharomyces Cerevisiae Fas Type I Megasynthase.

Johansson, P.Mulinacci, B.Koestler, C.Vollrath, R.Oesterhelt, D.Grininger, M.

(2009) Structure 17: 1063

  • DOI: 10.1016/j.str.2009.06.014
  • Primary Citation of Related Structures:  
    2WAS, 2WAT, 3HMJ

  • PubMed Abstract: 
  • The fungal type I fatty acid synthase (FAS) is a 2.6 MDa multienzyme complex, catalyzing all necessary steps for the synthesis of long acyl chains. To be catalytically competent, the FAS must be activated by a posttranslational modification of the central acyl carrier domain (ACP) by an intrinsic phosphopantetheine transferase (PPT) ...

    The fungal type I fatty acid synthase (FAS) is a 2.6 MDa multienzyme complex, catalyzing all necessary steps for the synthesis of long acyl chains. To be catalytically competent, the FAS must be activated by a posttranslational modification of the central acyl carrier domain (ACP) by an intrinsic phosphopantetheine transferase (PPT). However, recent X-ray structures of the fungal FAS revealed a barrel-shaped architecture, with PPT located at the outside of the barrel wall, spatially separated from the ACP caged in the inner volume. This separation indicated that the activation has to proceed before the assembly to the mature complex, in a conformation where the ACP and PPT domains can meet. To gain insight into the auto-activation reaction and also into the fungal FAS assembly pathway, we structurally and functionally characterized the Saccharomyces cerevisiae FAS type I PPT as part of the multienzyme protein and as an isolated domain.


    Organizational Affiliation

    Department of Membrane Biochemistry, Max-Planck-Institute of Biochemistry, Martinsried, Germany. johansso@biochem.mpg.de



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASEA, D, E122Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.8.7 (PDB Primary Data), 2.3.1.41 (PDB Primary Data), 2.3.1.86 (UniProt), 1.1.1.100 (UniProt)
UniProt
Find proteins for P19097 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P19097 
Go to UniProtKB:  P19097
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASEB, C, F122Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.8.7 (PDB Primary Data), 2.3.1.41 (PDB Primary Data), 2.3.1.86 (UniProt), 1.1.1.100 (UniProt)
UniProt
Find proteins for P19097 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P19097 
Go to UniProtKB:  P19097
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.12α = 90
b = 55.758β = 111.43
c = 81.004γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-08-25
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance