Organelle division: From coli to chloroplasts
نویسنده
چکیده
FtsZ, an ancestral homolog of eukaryotic tubulin, assembles into the cytokinetic Z ring that directs cell division in bacteria. Recent results indicate that FtsZ is also used for division by chloroplasts, though not by mitochondria.
منابع مشابه
Cell and chloroplast division requires ARTEMIS.
Chloroplasts are endosymbiotic organelles of cyanobacterial origin. It seems reasonable to assume that cell division and organelle division still share general principles, as shown for the FtsZ proteins. However, further components involved in this process are largely unknown. Here we describe ARTEMIS, a nuclear-encoded protein of chloroplast inner envelope membranes that is required for organe...
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Peroxisomes are highly dynamic organelles involved in various metabolic pathways. The division of peroxisomes is regulated by factors such as the PEROXIN11 (PEX11) proteins that promote peroxisome elongation and the dynamin-related proteins (DRPs) and FISSION1 (FIS1) proteins that function together to mediate organelle fission. In Arabidopsis thaliana, DRP3A/DRP3B and FIS1A (BIGYIN)/FIS1B are t...
متن کاملDynamin-Like Proteins Are Potentially Involved in Membrane Dynamics within Chloroplasts and Cyanobacteria
Dynamin-like proteins (DLPs) are a family of membrane-active proteins with low sequence identity. The proteins operate in different organelles in eukaryotic cells, where they trigger vesicle formation, membrane fusion, or organelle division. As discussed here, representatives of this protein family have also been identified in chloroplasts and DLPs are very common in cyanobacteria. Since cyanob...
متن کاملThe control of peroxisome number and size during division and proliferation.
Like other subcellular organelles, peroxisomes divide and segregate to daughter cells during cell division, but this organelle can also proliferate or be degraded in response to environmental cues. Although the mechanisms and genes involved in these processes are still under active investigation, an important player in peroxisome proliferation is a dynamin-related protein (DRP) that is recruite...
متن کاملDynamic Trio: FtsZ, Plastid-Dividing, and Dynamin Rings Control Chloroplast Division
Chloroplasts and mitochondria likely evolved from endosymbiosis of bacterial progenitors with a host cell. Thus, it is expected that the division of these organelles bears some resemblance to prokaryotic cell division. However, organelle division is controlled by proteins encoded in the nucleus (host cell genome), and mitochondrial and chloroplast genomes have lost most of the genes necessary f...
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عنوان ژورنال:
- Current Biology
دوره 8 شماره
صفحات -
تاریخ انتشار 1998