2CF2

Architecture of mammalian fatty acid synthase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.30 Å

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Literature

Architecture of Mammalian Fatty Acid Synthase at 4.5 A Resolution.

Maier, T.Jenni, S.Ban, N.

(2006) Science 311: 1258

  • DOI: 10.1126/science.1123248
  • Primary Citation of Related Structures:  
    2CF2

  • PubMed Abstract: 
  • The homodimeric mammalian fatty acid synthase is one of the most complex cellular multienzymes, in that each 270-kilodalton polypeptide chain carries all seven functional domains required for fatty acid synthesis. We have calculated a 4.5 angstrom-resolution x-ray crystallographic map of porcine fatty acid synthase, highly homologous to the human multienzyme, and placed homologous template structures of all individual catalytic domains responsible for the cyclic elongation of fatty acid chains into the electron density ...

    The homodimeric mammalian fatty acid synthase is one of the most complex cellular multienzymes, in that each 270-kilodalton polypeptide chain carries all seven functional domains required for fatty acid synthesis. We have calculated a 4.5 angstrom-resolution x-ray crystallographic map of porcine fatty acid synthase, highly homologous to the human multienzyme, and placed homologous template structures of all individual catalytic domains responsible for the cyclic elongation of fatty acid chains into the electron density. The positioning of domains reveals the complex architecture of the multienzyme forming an intertwined dimer with two lateral semicircular reaction chambers, each containing a full set of catalytic domains required for fatty acid elongation. Large distances between active sites and conformational differences between the reaction chambers demonstrate that mobility of the acyl carrier protein and general flexibility of the multienzyme must accompany handover of the reaction intermediates during the reaction cycle.


    Organizational Affiliation

    Institute of Molecular Biology and Biophysics, Department of Biology, Swiss Federal Institute of Technology (ETH Zurich), 8093 Zurich, Switzerland.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FATTY ACID SYNTHASE, KS DOMAINA, F [auth J]406Sus scrofaMutation(s): 0 
EC: 2.3.1.85 (PDB Primary Data), 2.3.1.41 (UniProt)
UniProt
Find proteins for P0A953 (Escherichia coli (strain K12))
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Go to UniProtKB:  P0A953
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
FATTY ACID SYNTHASE, MAT DOMAINB, G [auth K]304Sus scrofaMutation(s): 0 
EC: 2.3.1.85
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
FATTY ACID SYNTHASE, DH DOMAINC, H [auth L]342Sus scrofaMutation(s): 0 
EC: 2.3.1.85
Protein Feature View
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
FATTY ACID SYNTHASE, ER DOMAIND, I [auth M]295Sus scrofaMutation(s): 0 
EC: 2.3.1.85
Protein Feature View
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
FATTY ACID SYNTHASE, KR DOMAINE, J [auth N]226Sus scrofaMutation(s): 0 
EC: 2.3.1.85
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.30 Å
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 96.1α = 90
b = 245β = 101.2
c = 134.1γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XDSdata scaling
SHARPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-03-07
    Type: Initial release