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Building-block selectivity of polyketide synthases.

Grace F Liou1, Chaitan Khosla

  • 1Department of Chemical Engineering, Stanford University, Stanford CA 94305, USA.

Current Opinion in Chemical Biology
|April 26, 2003
PubMed
Summary

Polyketide synthases offer a powerful method for controlling complex natural product structures. Modifying acyl transferases is key to directing the regioselective synthesis of these molecules.

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Area of Science:

  • Biochemistry
  • Natural Product Synthesis
  • Enzymology

Background:

  • Polyketide synthases (PKS) are crucial multifunctional enzymes in natural product biosynthesis.
  • They catalyze the stepwise assembly and modification of polyketide natural products from metabolic building blocks.
  • Controlling PKS activity allows for the targeted synthesis of complex molecules.

Purpose of the Study:

  • To explore the potential of polyketide synthases for manipulating natural product structures.
  • To investigate methods for achieving regioselective modification of polyketide biosynthesis.
  • To highlight the role of acyl transferases in controlling building block incorporation.

Main Methods:

  • Review of existing literature on polyketide synthase engineering.
  • Analysis of strategies for altering intracellular acyl-CoA pools.
  • Examination of methods for manipulating acyl transferase activity.

Main Results:

  • Polyketide synthases provide a versatile platform for complex natural product synthesis.
  • Regioselective modification can be achieved through targeted enzymatic alterations.
  • Acyl transferases serve as critical gatekeepers for substrate selection in polyketide assembly.

Conclusions:

  • Engineering polyketide synthases offers significant opportunities for synthetic biology and drug discovery.
  • Understanding acyl transferase function is essential for precise control over polyketide structures.
  • This enzymatic machinery represents a promising avenue for the tailored production of valuable natural products.

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