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Related Concept Videos

Binary Fission01:20

Binary Fission

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Fission is the division of a single entity into two or more parts, which regenerate into separate entities that resemble the original. Organisms in the Archaea and Bacteria domains reproduce using binary fission, in which a parent cell splits into two parts that can each grow to the size of the original parent cell. This asexual method of reproduction produces cells that are all genetically identical.
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Archaeal Cell Wall01:29

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Archaeal cell walls are structurally and compositionally distinct from their bacterial counterparts, lacking the characteristic peptidoglycan layer found in most bacteria. Instead, archaeal cell walls exhibit remarkable diversity, utilizing materials such as pseudomurein, polysaccharides, and proteins to construct their protective outer layers. This structural flexibility is closely tied to archaea's ecological adaptability.S-Layers: The Common Archaeal Cell WallThe S-layer is the most...
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Archaeal surface appendages are highly specialized structures essential for environmental adaptation, encompassing roles in adhesion, biofilm formation, and motility. Among these appendages, pili and archaella stand out for their distinct morphologies and functionalities, enabling archaea to thrive in diverse and often extreme environments.Pili: Adhesion and Biofilm FormationPili are filamentous structures assembled from pilin protein subunits, primarily contributing to adhesion and biofilm...
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Viruses of Archaea01:29

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Archaeal viruses play a crucial role in the ecosystems of extremophilic archaea, particularly those belonging to the phyla Euryarchaeota and Crenarchaeota. By shaping host evolution and facilitating gene transfer, these viruses influence microbial communities and contribute to genetic diversity in extreme environments. The archaea they infect thrive in acidic hot springs and hydrothermal vents characterized by high temperatures and low pH. Archaeal viruses exhibit remarkable structural...
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Contractile rings are composed of microfilaments and are responsible for separating the daughter cells during cytokinesis. Contractile ring assembly proceeds along with other cell cycle events; however, very few mechanistic details are known about the timing and coordination of the contractile rings with the cell cycle.
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The cell cycle is an organized set of events that leads the cell to divide into two daughter cells, each containing chromosomes identical to the parent cell. It is the cell cycle that leads to the formation of an entire organism from a single-cell zygote. Besides, cell division also functions in the renewal or repair of tissues in adult multicellular eukaryotes. For example, in the bone marrow, the stem cells divide to form new blood cells. Although essential for several functions, cell...
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The archaeal Cdv cell division system.

Alberto Blanch Jover1, Cees Dekker1

  • 1Department of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft, The Netherlands.

Trends in Microbiology
|January 19, 2023
PubMed
Summary
This summary is machine-generated.

The archaeal cell division (Cdv) system, related to eukaryotic ESCRT, uses proteins like CdvA, CdvB, and CdvC to divide cells. Recent research clarifies its structure and function for archaeal biophysics and synthetic biology.

Keywords:
Cdv SystemCell divisionESCRT-IIIarchaeasynthetic cells

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Area of Science:

  • Microbiology
  • Molecular Biology
  • Evolutionary Biology

Background:

  • The Cdv system is crucial for cell division in some archaea.
  • It shares evolutionary and functional links with the eukaryotic ESCRT machinery.
  • Understanding Cdv has been slow but is accelerating with recent discoveries.

Purpose of the Study:

  • To provide a comprehensive overview of the Cdv system's research.
  • To explain the molecular mechanisms of archaeal cell division.
  • To highlight the implications for archaeal biophysics, evolution, and synthetic cell development.

Main Methods:

  • Literature review and synthesis of existing research on the Cdv system.
  • Analysis of structural and functional similarities between Cdv and ESCRT machinery.
  • Integration of recent findings to propose a physical model of Cdv function.

Main Results:

  • The Cdv system comprises CdvA (membrane anchor), CdvB (scaffold), CdvB1/CdvB2 (constriction machinery), and CdvC (ATPase).
  • A model is presented detailing how these proteins cooperate to achieve cell division.
  • The Cdv system's role in membrane deformation is elucidated.

Conclusions:

  • The Cdv system's mechanism is becoming clearer, revealing its role in archaeal cell division.
  • Studying Cdv enhances understanding of archaeal biophysics and evolution.
  • The Cdv system offers potential for building synthetic cell divisomes.