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Related Concept Videos

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Amino Acid Biosynthetic Pathways

Amino acid biosynthesis is essential for cell growth, protein synthesis, and metabolic regulation. Cells generate essential and non-essential amino acids from metabolic intermediates to sustain vital biological functions. These intermediates originate from key metabolic pathways: glycolysis, the tricarboxylic acid (TCA) cycle, and the pentose phosphate pathway. Important precursors include α-ketoglutarate, pyruvate, oxaloacetate, phosphoenolpyruvate, and erythrose-4-phosphate, which provide...
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Related Experiment Video

Updated: May 11, 2026

From a Natural Product to Its Biosynthetic Gene Cluster: A Demonstration Using Polyketomycin from Streptomyces diastatochromogenes Tü6028
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Modular construction of a functional artificial epothilone polyketide pathway.

Corina Osswald1, Gregor Zipf, Gisela Schmidt

  • 1Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology, Saarland University , Saarbrücken, Germany.

ACS Synthetic Biology
|May 10, 2013
PubMed
Summary

Synthetic biology enabled the redesign and heterologous expression of the epothilone biosynthetic gene cluster in a new host, achieving significant natural product yields. This work advances engineering for optimized epothilone production.

Keywords:
artificial gene clusterepothiloneheterologous expressionpathway engineeringpolyketide biosynthesissynthetic biology

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Last Updated: May 11, 2026

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The Logic, Experimental Steps, and Potential of Heterologous Natural Product Biosynthesis Featuring the Complex Antibiotic Erythromycin A Produced Through E. coli
10:41

The Logic, Experimental Steps, and Potential of Heterologous Natural Product Biosynthesis Featuring the Complex Antibiotic Erythromycin A Produced Through E. coli

Published on: January 13, 2013

Area of Science:

  • Microbial natural products
  • Synthetic biology
  • Metabolic engineering

Background:

  • Microbial natural products are vital pharmaceuticals but complex to synthesize, necessitating fermentation.
  • Optimizing natural product properties requires genetic tools and understanding biosynthetic pathways, often unavailable.
  • Heterologous expression of natural product pathways is a key area of development.

Purpose of the Study:

  • To redesign and reassemble the epothilone biosynthetic gene cluster for heterologous expression.
  • To adapt the gene cluster for expression in the high GC host Myxococcus xanthus.
  • To establish a flexible synthetic biology platform for epothilone production optimization.

Main Methods:

  • Redesigned and reassembled the 56 kb epothilone biosynthetic gene cluster.
  • Adapted codon composition to a modified codon table for Myxococcus xanthus.
  • Introduced unique restriction sites and eliminated others for modular assembly.

Main Results:

  • Successfully achieved heterologous epothilone production in Myxococcus xanthus.
  • Demonstrated significant yields of epothilones via the engineered pathway.
  • Established a flexible assembly strategy for future pathway engineering.

Conclusions:

  • Synthetic biology offers solutions for limitations in heterologous expression of complex natural product pathways.
  • The engineered epothilone pathway in Myxococcus xanthus demonstrates successful heterologous production.
  • This study provides a foundation for future engineering and optimization of epothilone biosynthesis.