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Related Concept Videos

Transcription01:10

Transcription

146.9K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
146.9K
Overview of Metabolism01:40

Overview of Metabolism

29.9K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
29.9K
Responses to Salt Stress02:02

Responses to Salt Stress

13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K

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Deciphering nutritional stress responses via knowledge-enriched transcriptomics for microbial engineering.

Jongoh Shin1, Daniel C Zielinski1, Bernhard O Palsson2

  • 1Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA.

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|June 2, 2024
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Summary
This summary is machine-generated.

This study reveals how Vibrio natriegens responds to different nutrients using transcriptomic analysis. Findings enhance microbial engineering by detailing nutrient responses and identifying key metabolic regulators.

Keywords:
Independent component analysisMachine learningNutritional responseSystems biologyVibrio natriegensiModulon

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Area of Science:

  • Microbial Physiology
  • Systems Biology
  • Biotechnology

Background:

  • Bacterial nutrition and stress responses are crucial for microbial research and biotechnology.
  • Understanding Vibrio natriegens' metabolic flexibility is key for optimizing its use in engineered systems.

Purpose of the Study:

  • To decipher Vibrio natriegens' complex stress responses to various nutrient conditions using knowledge-enriched transcriptomic analytics.
  • To provide a quantitative basis for transcriptome dynamics across diverse nutrient environments.
  • To identify novel nutrient transporters and understand trace element effects on metabolism.

Main Methods:

  • Employed knowledge-enriched transcriptomic analytics on a comprehensive dataset.
  • Computed 64 independently modulated gene sets to analyze transcriptome dynamics.
  • Investigated nutrient-induced stress responses including osmotic stress and proteostasis.

Main Results:

  • Identified novel transporter systems for diverse substrates.
  • Detailed the impact of trace elements on bacterial metabolism and growth.
  • Characterized nutrient-induced stress responses like osmotic stress and altered protein expression.
  • Clarified the role of the acetate-associated regulon in carbon source selection.

Conclusions:

  • The study provides deep insights into the transcriptional landscape of bacterial nutrition.
  • Findings underscore the significance of nutritional understanding for tailoring strain engineering strategies.
  • Facilitates the development of more efficient and robust microbial systems for biotechnological applications.