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Related Concept Videos

Amplifying Signals via Enzymatic Cascade01:22

Amplifying Signals via Enzymatic Cascade

When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze the...
Assembly of Signaling Complexes01:30

Assembly of Signaling Complexes

Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
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Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

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Positive and negative feedback loops are crucial for regulating biological signaling systems. These feedback loops are processes that connect output signals to their inputs.
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Related Experiment Video

Updated: May 7, 2026

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
09:32

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

Rewiring cell signalling through chimaeric regulatory protein engineering.

Baojun Wang1, Mauricio Barahona, Martin Buck

  • 1*Department of Mathematics, Imperial College London, London SW7 2AZ, U.K.

Biochemical Society Transactions
|September 25, 2013
PubMed
Summary
This summary is machine-generated.

Bacteria rewire cell signaling pathways using engineered chimeric proteins for novel functions. This approach enhances biological system engineering for diverse applications.

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Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
12:24

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy

Published on: September 29, 2016

Related Experiment Videos

Last Updated: May 7, 2026

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
09:32

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
12:24

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy

Published on: September 29, 2016

Area of Science:

  • Microbiology and Synthetic Biology
  • Molecular Biology and Biochemistry

Background:

  • Bacterial cells possess complex signaling and gene regulatory networks to sense and respond to environmental cues.
  • Parallel signaling pathways with interconnections allow for sophisticated adaptive responses to diverse stimuli.

Purpose of the Study:

  • To review engineering strategies for modifying bacterial cell signaling pathways.
  • To explore the use of chimeric regulatory proteins, particularly in bacterial two-component signaling (TCS) systems.
  • To highlight the potential of engineered proteins for customized signaling and regulatory functions.

Main Methods:

  • Review of existing literature on engineering cell signaling pathways.
  • Focus on strategies involving chimeric protein construction and recombination of signaling components.
  • Examination of applications in bacterial two-component signaling (TCS) systems.

Main Results:

  • Cell signaling pathways can be rewired by exchanging signaling components to respond to non-cognate signals.
  • Engineered chimeric regulatory proteins offer a method to achieve novel signaling or regulatory functions.
  • Two-component signaling (TCS) systems in bacteria are a key target for such engineering.

Conclusions:

  • Engineered chimeric proteins represent a powerful tool for customizing bacterial cell signaling.
  • These engineered proteins facilitate both forward and reverse engineering of biological systems.
  • The approach holds significant promise for various desired applications in synthetic biology and beyond.