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Related Concept Videos

The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
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Constitutive and Regulated Gene Expression

Gene expression in prokaryotes is governed by constitutive and regulated systems, allowing cells to balance the production of essential proteins with adaptive responses to environmental changes.Constitutive Gene ExpressionConstitutive, or housekeeping, genes are continuously expressed as they encode proteins vital for fundamental cellular processes. These include enzymes for glycolysis, ribosomal components for protein synthesis, and proteins involved in DNA replication. Their constant...
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

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Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

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Assembly of Signaling Complexes01:30

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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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Activation and Inactivation of G Proteins01:22

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Published on: October 9, 2016

Constitutively active STAT5 constructs.

Lynn M Heltemes-Harris1, Michael A Farrar

  • 1Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA.

Methods in Molecular Biology (Clifton, N.J.)
|January 9, 2013
PubMed
Summary
This summary is machine-generated.

Signal Transducer and Activator of Transcription 5 (STAT5) is crucial for biological processes. New animal models enable targeted expression of active STAT5, advancing research into its functions, particularly in immune cells.

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Area of Science:

  • Immunology
  • Molecular Biology
  • Genetics

Background:

  • Signal Transducer and Activator of Transcription 5 (STAT5) is a key transcription factor involved in numerous cellular functions.
  • Dysregulation of STAT5 signaling is implicated in various diseases, necessitating further study.
  • Understanding STAT5's role requires tools for controlled investigation.

Purpose of the Study:

  • To describe the design of constitutively active STAT5 (caSTAT5) constructs.
  • To highlight recent advancements in utilizing these constructs for animal modeling.
  • To facilitate the study of STAT5-dependent biological processes.

Main Methods:

  • Development of engineered DNA constructs for constitutive STAT5 activation.
  • Generation of transgenic animal models with targeted caSTAT5 expression.
  • Utilizing these models to investigate STAT5 function in specific cell types, including lymphocytes.

Main Results:

  • Successful design and validation of multiple caSTAT5 constructs.
  • Establishment of animal models allowing for inducible and tissue-specific caSTAT5 expression.
  • Demonstration of caSTAT5 expression in developing B and T cells.

Conclusions:

  • Constitutively active STAT5 constructs provide valuable tools for biological research.
  • Generated animal models offer unprecedented opportunities to study STAT5 in vivo.
  • These advancements will accelerate the understanding of STAT5's role in development and disease.