2UV8

Crystal structure of yeast fatty acid synthase with stalled acyl carrier protein at 3.1 angstrom resolution

• PDB DOI: https://doi.org/10.2210/pdb2UV8/pdb

• Classification: TRANSFERASE
• Organism(s): Saccharomyces cerevisiae
• Mutation(s): No 


• Deposited: 2007-03-09 Released: 2007-04-17 
• Deposition Author(s): Leibundgut, M., Jenni, S., Frick, C., Ban, N.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.250 
• R-Value Work: 0.200 

Starting Models: experimental

Literature

Structural Basis for Substrate Delivery by Acyl Carrier Protein in the Yeast Fatty Acid Synthase

Leibundgut, M., Jenni, S., Frick, C., Ban, N.

(2007) Science 316: 288

• PubMed: 17431182 
• DOI: https://doi.org/10.1126/science.1138249
• Primary Citation of Related Structures:  
  2UV8


• PubMed Abstract: 
  

  In the multifunctional fungal fatty acid synthase (FAS), the acyl carrier protein (ACP) domain shuttles reaction intermediates covalently attached to its prosthetic phosphopantetheine group between the different enzymatic centers of the reaction cycle. Here, we report the structure of the Saccharomyces cerevisiae FAS determined at 3.1 angstrom resolution with its ACP stalled at the active site of ketoacyl synthase. The ACP contacts the base of the reaction chamber through conserved, charge-complementary surfaces, which optimally position the ACP toward the catalytic cleft of ketoacyl synthase. The conformation of the prosthetic group suggests a switchblade mechanism for acyl chain delivery to the active site of the enzyme.

---

Organizational Affiliation: 

Institute of Molecular Biology and Biophysics, ETH Zurich, 8092 Zurich, Switzerland.

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Hetero 12-mer - A6B6 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 1,310.37 kDa 
• Atom Count: 85,962 
• Modelled Residue Count: 10,941 
• Deposited Residue Count: 11,814 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FATTY ACID SYNTHASE SUBUNIT ALPHA (FAS2)	A, B, C	1,887	Saccharomyces cerevisiae	Mutation(s): 0  EC: 2.3.1.86 (PDB Primary Data), 2.3.1.41 (UniProt), 1.1.1.100 (UniProt)
UniProt
Find proteins for P19097 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P19097  Go to UniProtKB:  P19097

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
FATTY ACID SYNTHASE SUBUNIT BETA (FAS1)	D [auth G], E [auth H], F [auth I]	2,051	Saccharomyces cerevisiae	Mutation(s): 0  EC: 2.3.1.86 (PDB Primary Data), 3.1.2.14 (UniProt), 2.3.1.38 (UniProt), 4.2.1.59 (UniProt), 2.3.1.39 (UniProt), 1.3.1.9 (UniProt)
UniProt
Find proteins for P07149 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P07149  Go to UniProtKB:  P07149

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FMN	G, H, I	FLAVIN MONONUCLEOTIDE C17 H21 N4 O9 P FVTCRASFADXXNN-SCRDCRAPSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
GVL	A, B, C	L-PEPTIDE LINKING	C9 H19 N2 O8 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.250 
• R-Value Work: 0.200 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 230.6	α = 90
b = 230.6	β = 90
c = 784.3	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing
PHENIX	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-04-17 
Deposition Author(s): Leibundgut, M., Jenni, S., Frick, C., Ban, N.

Revision History  

• Version 1.0: 2007-04-17
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-12-13
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description