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Related Concept Videos

The Contractile Ring02:15

The Contractile Ring

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.
A small GTPase, RhoA, controls the function and assembly of the contractile ring. RhoA belongs to the Ras superfamily of proteins. The activation of formins by RhoA promotes...
The Contractile Ring02:15

The Contractile Ring

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.
A small GTPase, RhoA, controls the function and assembly of the contractile ring. RhoA belongs to the Ras superfamily of proteins. The activation of formins by RhoA promotes...
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Zener diodes are specialized semiconductor devices designed to operate in the reverse breakdown region, where they allow current to flow into the cathode, making it positive relative to the anode. This reverse operation distinguishes Zener diodes from conventional diodes and enables their use in various applications, most notably as voltage regulators. One of the defining characteristics of Zener diodes is their nearly vertical I-V (current-voltage) characteristic curve above a certain...
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Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta catalyst, high molecular...
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Due to their highly strained structures, epoxides can readily undergo ring-opening reactions through nucleophilic substitution, either in the presence of an acid or a base. The nucleophilic substitution reactions in the presence of acid are called acid-catalyzed ring-opening reactions, and nucleophilic substitution reactions in the presence of a base are called base-catalyzed ring-opening reactions. Epoxides undergo base-catalyzed ring-opening reactions in the presence of a strong nucleophile...
[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement01:21

[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement

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Related Experiment Video

Updated: May 28, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
08:15

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups

Published on: February 11, 2012

New(s) to the (Z-)ring.

Clare L Kirkpatrick1, Patrick H Viollier

  • 1Department of Microbiology and Molecular Medicine, CMU, University of Geneva, Rue Michel-Servet 1, 1211 Geneva 4, Switzerland.

Current Opinion in Microbiology
|October 11, 2011
PubMed
Summary
This summary is machine-generated.

Bacterial cell division relies on the divisome, a complex machine involving FtsZ protein polymers. Recent discoveries highlight new factors regulating FtsZ polymerization and cell division in response to cellular conditions.

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Synthesis of Triazole and Tetrazole-Functionalized Zr-Based Metal-Organic Frameworks Through Post-Synthetic Ligand Exchange
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Area of Science:

  • Microbiology
  • Cell Biology
  • Biochemistry

Background:

  • Cytokinesis in bacteria is orchestrated by the divisome, a protein complex essential for cell division.
  • The divisome's core component, FtsZ, polymerizes into filaments, analogous to eukaryotic tubulin, forming a scaffold for division.
  • Precise regulation of FtsZ polymerization and divisome assembly is critical for accurate cell division.

Purpose of the Study:

  • To explore the regulatory mechanisms governing bacterial cytokinesis.
  • To identify novel factors influencing FtsZ polymer dynamics.
  • To understand how cellular state impacts the division machinery.

Main Methods:

  • The study likely involves biochemical assays to study FtsZ polymerization.
  • Genetic manipulation of bacteria to identify and characterize new regulatory factors.
  • Microscopy techniques to visualize divisome assembly and FtsZ dynamics in vivo.

Main Results:

  • Identification of new regulatory factors that shape FtsZ polymers.
  • Demonstration that FtsZ polymerization is modulated by the cell's metabolic and redox state.
  • Elucidation of mechanisms controlling FtsZ placement and polymer dynamics.

Conclusions:

  • The bacterial divisome is subject to sophisticated regulation beyond FtsZ polymerization.
  • Cellular metabolic and redox status actively influence the bacterial cell division process.
  • New insights into bacterial cytokinesis provide a foundation for understanding cell growth and division.