2WAS

Structure of the fungal type I FAS PPT domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.218 

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:  

  • 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 ce ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASE
A, D, E
122Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: FAS2
EC: 2.3.1.86
Find proteins for P19097 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P19097
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASE
B, C, F
122Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: FAS2
EC: 2.3.1.86
Find proteins for P19097 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P19097
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.218 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 81.120α = 90.00
b = 55.758β = 111.43
c = 81.004γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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