2PFF

Structural Insights of Yeast Fatty Acid Synthase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.346 
  • R-Value Work: 0.319 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Insights of Yeast Fatty Acid Synthase

Xiong, Y.Lomakin, I.B.Steitz, T.A.

(2007) Cell 129: 319-332

  • DOI: 10.1016/j.cell.2007.03.013
  • Primary Citation of Related Structures:  
    2PFF

  • PubMed Abstract: 
  • In yeast, the whole metabolic pathway for making 16- and 18-carbon fatty acids is carried out by fatty acid synthase, a 2.6 megadalton molecular-weight macromolecular assembly containing six copies of all eight catalytic centers. We have determined its crystal structure, which illuminates how this enzyme is initially activated and then carries out multiple steps of synthesis in each of six sterically isolated reaction chambers ...

    In yeast, the whole metabolic pathway for making 16- and 18-carbon fatty acids is carried out by fatty acid synthase, a 2.6 megadalton molecular-weight macromolecular assembly containing six copies of all eight catalytic centers. We have determined its crystal structure, which illuminates how this enzyme is initially activated and then carries out multiple steps of synthesis in each of six sterically isolated reaction chambers. Six of the catalytic sites are in the wall of the assembly facing an acyl carrier protein (ACP) bound to the ketoacyl synthase domain. Two-dimensional diffusion of substrates to the catalytic sites may be achieved by the electrostatically negative ACP swinging to each of the six electrostatically positive catalytic sites. The phosphopantetheinyl transferase domain lies outside the shell of the assembly, inaccessible to ACP that lies inside, suggesting that the attachment of the pantetheine arm to ACP must occur before complete assembly of the complex.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520-8114, USA.



Macromolecules
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Tail proteinCFI65N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fatty acid synthase subunit alphaADG1688Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.3.1.86 (PDB Primary Data), 1.1.1.100 (UniProt), 2.3.1.41 (UniProt)
Find proteins for P19097 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Go to UniProtKB:  P19097
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fatty acid synthase subunit betaBEH2006Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.3.1.86 (PDB Primary Data), 4.2.1.59 (UniProt), 1.3.1.9 (UniProt), 2.3.1.38 (UniProt), 2.3.1.39 (UniProt), 3.1.2.14 (UniProt)
Find proteins for P07149 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P07149 
Go to UniProtKB:  P07149
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.346 
  • R-Value Work: 0.319 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 231.343α = 90
b = 231.343β = 90
c = 754.288γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-07-10
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance