3HHD

Structure of the Human Fatty Acid Synthase KS-MAT Didomain as a Framework for Inhibitor Design.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the human fatty acid synthase KS-MAT didomain as a framework for inhibitor design.

Pappenberger, G.Benz, J.Gsell, B.Hennig, M.Ruf, A.Stihle, M.Thoma, R.Rudolph, M.G.

(2010) J.Mol.Biol. 397: 508-519

  • DOI: 10.1016/j.jmb.2010.01.066

  • PubMed Abstract: 
  • The human fatty acid synthase (FAS) is a key enzyme in the metabolism of fatty acids and a target for antineoplastic and antiobesity drug development. Due to its size and flexibility, structural studies of mammalian FAS have been limited to individua ...

    The human fatty acid synthase (FAS) is a key enzyme in the metabolism of fatty acids and a target for antineoplastic and antiobesity drug development. Due to its size and flexibility, structural studies of mammalian FAS have been limited to individual domains or intermediate-resolution studies of the complete porcine FAS. We describe the high-resolution crystal structure of a large part of human FAS that encompasses the tandem domain of beta-ketoacyl synthase (KS) connected by a linker domain to the malonyltransferase (MAT) domain. Hinge regions that allow for substantial flexibility of the subdomains are defined. The KS domain forms the canonical dimer, and its substrate-binding site geometry differs markedly from that of bacterial homologues but is similar to that of the porcine orthologue. The didomain structure reveals a possible way to generate a small and compact KS domain by omitting a large part of the linker and MAT domains, which could greatly aid in rapid screening of KS inhibitors. In the crystal, the MAT domain exhibits two closed conformations that differ significantly by rigid-body plasticity. This flexibility may be important for catalysis and extends the conformational space previously known for type I FAS and 6-deoxyerythronolide B synthase.


    Organizational Affiliation

    F. Hoffmann La-Roche, Basel, CH-4070 Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fatty acid synthase
A, B, C, D
965Homo sapiensGene Names: FASN (FAS)
EC: 2.3.1.85, 2.3.1.41, 3.1.2.14, 1.1.1.100, 2.3.1.38, 2.3.1.39, 1.3.1.39, 4.2.1.59
Find proteins for P49327 (Homo sapiens)
Go to Gene View: FASN
Go to UniProtKB:  P49327
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
C, D
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.169 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 86.620α = 73.84
b = 91.160β = 86.83
c = 132.110γ = 62.54
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHASERphasing
HKL-2000data reduction
BUSTER-TNTrefinement
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-02-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description