Related Experiment Video
Updated: Apr 14, 2026
07:59
A High-Yield Streptomyces Transcription-Translation Toolkit for Synthetic Biology and Natural Product Applications
Published on: September 10, 2021
4.8K
Tailoring specialized metabolite production in streptomyces
Jana K Hiltner1, Iain S Hunter2, Paul A Hoskisson1
1Strathclyde Institute of Pharmacy and Biological Science, University of Strathclyde, Glasgow, UK.
Advances in Applied Microbiology
|April 26, 2015
Summary
Streptomyces bacteria create valuable medical compounds through complex metabolic pathways. Gene family expansion in primary metabolism drives the diversity of these specialized pathways, aiding synthetic biology for industrial applications.
Area of Science:
- Microbiology
- Metabolic Engineering
- Evolutionary Biology
Background:
- Streptomyces are key sources of medically important compounds.
- These compounds originate from intricate secondary metabolic pathways.
- Primary metabolic intermediates serve as precursors for these secondary metabolites.
Purpose of the Study:
- To review the evolutionary origins of specialized metabolites in Streptomyces.
- To explore the role of primary metabolic gene family expansion in generating metabolic diversity.
- To highlight the potential of understanding primary metabolism for enhancing synthetic biology in Streptomyces.
Main Methods:
- Literature review focusing on Streptomyces metabolism and evolution.
- Analysis of gene family expansion in primary metabolic pathways.
- Discussion of implications for synthetic biology and metabolic engineering.
Main Results:
- Gene family expansion in primary metabolism is a significant driver of specialized metabolite diversity.
- Understanding these expanded pathways offers insights into the evolution of metabolic capabilities.
- This knowledge can guide the engineering of industrial microbial strains.
Conclusions:
- The evolution of Streptomyces secondary metabolism is closely linked to changes in primary metabolism.
- Targeting expanded primary metabolic pathways is a promising strategy for synthetic biology.
- Enhanced understanding can improve the production of valuable metabolites through metabolic engineering.
More Related Videos
09:08From a Natural Product to Its Biosynthetic Gene Cluster: A Demonstration Using Polyketomycin from Streptomyces diastatochromogenes Tü6028
Published on: January 13, 2017
17.9K
07:59A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
10.5K
Related Concept Videos
01:22Bioreactor Controls-III
55
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
55
01:27Production of Antibiotics
162
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
162
01:27Upstream Processing
87
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
87
01:30Production of Pharmaceuticals
70
Industrial insulin production uses genetically engineered E. coli expressing a proinsulin gene controlled by a tryptophan promoter and containing a methionine linker for later cleavage. The cells also carry ampicillin resistance for selective growth. Seed cultures are stored at −80 °C and production begins by thawing a small amount to inoculate starter cultures, which are progressively scaled to a 50,000-L bioreactor. In the bioreactor, E. coli grow in nutrient-rich media under...
70
01:14Scale-Up Processes
89
The scale-up of microbial fermentation processes is essential in industrial biotechnology, allowing the transition from laboratory-scale experiments to commercial-scale production while aiming to maintain product yield and quality. This process requires meticulous adjustment of equipment design, process parameters, and contamination control strategies to accommodate increasing culture volumes.At the laboratory scale, cultures are typically maintained in 1 to 10-liter glass or autoclavable...
89
01:24Biosynthesis in Bacteria
989
Biosynthesis in bacteria is a fundamental anabolic process that generates essential macromolecules, including proteins, nucleic acids, lipids, and polysaccharides. These macromolecules are critical for cellular growth, replication, and function. The process is tightly regulated and energetically linked to catabolic pathways to ensure optimal resource utilization.Biosynthetic pathways begin with precursor metabolites such as pyruvate, acetyl-CoA, and glucose-6-phosphate derived from glycolysis,...
989