Molecular basis for interactions between an acyl carrier protein and a ketosynthase

Nat Chem Biol. 2019 Jul;15(7):669-671. doi: 10.1038/s41589-019-0301-y. Epub 2019 Jun 17.

Abstract

Fatty acid synthases are dynamic ensembles of enzymes that can biosynthesize long hydrocarbon chains efficiently. Here we visualize the interaction between the Escherichia coli acyl carrier protein (AcpP) and β-ketoacyl-ACP-synthase I (FabB) using X-ray crystallography, NMR, and molecular dynamics simulations. We leveraged this structural information to alter lipid profiles in vivo and provide a molecular basis for how protein-protein interactions can regulate the fatty acid profile in E. coli.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • 3-Oxoacyl-(Acyl-Carrier-Protein) Synthase / chemistry
  • 3-Oxoacyl-(Acyl-Carrier-Protein) Synthase / metabolism*
  • Acyl Carrier Protein / chemistry
  • Acyl Carrier Protein / metabolism*
  • Crystallography, X-Ray
  • Escherichia coli / chemistry
  • Escherichia coli / enzymology
  • Escherichia coli Proteins / chemistry
  • Escherichia coli Proteins / metabolism*
  • Fatty Acid Synthase, Type II / chemistry
  • Fatty Acid Synthase, Type II / metabolism*
  • Models, Molecular
  • Protein Binding

Substances

  • Acyl Carrier Protein
  • Escherichia coli Proteins
  • 3-Oxoacyl-(Acyl-Carrier-Protein) Synthase
  • FabB protein, E coli
  • Fatty Acid Synthase, Type II