8PS8 image
Entry Detail
PDB ID:
8PS8
EMDB ID:
Title:
Asymmetric unit of the yeast fatty acid synthase in the semi non-rotated state with ACP at the enoyl reductase domain (FASam sample)
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2023-07-26
Release Date:
2023-11-22
Method Details:
Experimental Method:
Resolution:
4.00 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Fatty acid synthase subunit alpha
Chain IDs:A, B
Chain Length:1887
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:Fatty acid synthase subunit beta
Chain IDs:C (auth: G)
Chain Length:2051
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Ligand Molecules
Primary Citation
Reconstruction of a fatty acid synthesis cycle from acyl carrier protein and cofactor structural snapshots.
Cell 186 5054 5067.e16 (2023)
PMID: 37949058 DOI: 10.1016/j.cell.2023.10.009

Abstact

Fatty acids (FAs) play a central metabolic role in living cells as constituents of membranes, cellular energy reserves, and second messenger precursors. A 2.6 MDa FA synthase (FAS), where the enzymatic reactions and structures are known, is responsible for FA biosynthesis in yeast. Essential in the yeast FAS catalytic cycle is the acyl carrier protein (ACP) that actively shuttles substrates, biosynthetic intermediates, and products from one active site to another. We resolve the S. cerevisiae FAS structure at 1.9 Å, elucidating cofactors and water networks involved in their recognition. Structural snapshots of ACP domains bound to various enzymatic domains allow the reconstruction of a full yeast FA biosynthesis cycle. The structural information suggests that each FAS functional unit could accommodate exogenous proteins to incorporate various enzymatic activities, and we show proof-of-concept experiments where ectopic proteins are used to modulate FAS product profiles.

Legend

Protein

Chemical

Disease

Primary Citation of related structures