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Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
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Microtubule function and architecture are regulated by an array of specialized proteins called microtubule-associated proteins or MAPs. These proteins are widespread across different organisms and have conserved protein motifs, like the multi-TOG domain for tubulin binding found in the CLASP family of MAPs. Some MAPs are lineage-specific based on their conserved domains. Their functions depend upon the cytoskeletal architecture and cell type they are located within. In-plant cells, a specific...
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Caspase, a family of cysteine proteases, serve as effectors in apoptosis. The ced3 gene in C.elegans was first identified to be involved in apoptosis. This gene encodes the ced-3 caspase that is similar to the interleukin-1-beta converting enzyme or ICE in mammals. In addition to apoptosis, caspases also function in the inflammatory response. Inflammatory caspases are essential in activating pro-inflammatory cytokines that recruit immune cells and block the replication of pathogens inside...
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Related Experiment Videos

How Mesp1 makes a move.

Robert G Kelly1

  • 1Aix-Marseille University, Centre National de la Recherche Scientifique, Institut de Biologie du Développement de Marseille UMR 7288, 13288 Marseille, France robert.kelly@univ-amu.fr.

The Journal of Cell Biology
|May 18, 2016
PubMed
Summary
This summary is machine-generated.

Transcription factors MesP1 and MesP2 are crucial for heart development. This study reveals their roles in progenitor cell fate and migration, with MesP1 specifically regulating migration speed and direction.

Related Experiment Videos

Area of Science:

  • Developmental biology
  • Molecular and cell biology

Background:

  • Mesp1 and Mesp2 are transcription factors vital for early heart development.
  • These factors influence the migration and specification of multipotent progenitor cells.

Purpose of the Study:

  • To elucidate the distinct and shared functions of Mesp1 and Mesp2 in cardiogenesis.
  • To identify Mesp1-specific targets that control progenitor cell migration dynamics.

Main Methods:

  • Comparative analysis of Mesp1 and Mesp2 functions.
  • Identification of gene targets using molecular biology techniques.

Main Results:

  • Mesp1 and Mesp2 share functions in progenitor cell fate specification.
  • Mesp1 regulates the speed and directionality of progenitor cell migration through specific targets.

Conclusions:

  • Mesp1 and Mesp2 play essential, partly distinct roles in establishing the cardiac progenitor cell population.
  • Understanding Mesp1/Mesp2 functions provides insights into the molecular mechanisms of heart development.