The contractile vacuole complex of protists - New cues to function and biogenesis


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PLATTNER, Helmut, 2015. The contractile vacuole complex of protists - New cues to function and biogenesis. In: Critical Reviews in Microbiology. 41(2), pp. 218-227. ISSN 1040-841X. eISSN 1549-7828. Available under: doi: 10.3109/1040841X.2013.821650

@article{Plattner2015-06contr-24319, title={The contractile vacuole complex of protists - New cues to function and biogenesis}, year={2015}, doi={10.3109/1040841X.2013.821650}, number={2}, volume={41}, issn={1040-841X}, journal={Critical Reviews in Microbiology}, pages={218--227}, author={Plattner, Helmut} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:isPartOf rdf:resource=""/> <dspace:isPartOfCollection rdf:resource=""/> <dcterms:hasPart rdf:resource=""/> <dcterms:bibliographicCitation>Critical Reviews in Microbiology</dcterms:bibliographicCitation> <dcterms:rights rdf:resource=""/> <dc:creator>Plattner, Helmut</dc:creator> <dcterms:issued>2015-06</dcterms:issued> <dc:contributor>Plattner, Helmut</dc:contributor> <dcterms:available rdf:datatype="">2013-09-11T13:54:33Z</dcterms:available> <dcterms:abstract xml:lang="eng">Abstract The contractile vacuole complex (CVC) of freshwater protists sequesters the excess of water and ions (Ca2+) for exocytosis cycles at the pore. Sequestration is based on a chemiosmotic proton gradient produced by a V-type H+-ATPase. So far, many pieces of information available have not been combined to a comprehensive view on CVC biogenesis and function. One main function now appears as follows. Ca2+-release channels, type inositol 1,4,5-trisphosphate receptors (InsP3R), may serve for fine-tuning of local cytosolic Ca2+ concentration and mediate numerous membrane-to-membrane interactions within the tubular spongiome meshwork. Such activity is suggested by the occurrence of organelle-specific soluble N-ethylmaleimide sensitive factor attachment protein receptor (SNARE) and Ras-related in brain (Rab) proteins, which may regulate functional requirements. For tubulation, F-Bin-amphiphysin-Rvs (F-BAR) proteins are available. In addition, there is indirect evidence for the occurrence of H+/Ca2+ exchangers (to sequester Ca2+) and mechanosensitive Ca2+-channels (for signaling the filling sate). The periodic activity of the CVC may be regulated by the mechanosensitive Ca2+-channels. Such channels are known to colocalize with and to be functionally supported by stomatins, which were recently detected in the CVC. A Kif18-related kinesin motor protein might control the length of radial arms. Two additional InsP3-related channels and several SNAREs are associated with the pore. De novo organelle biogenesis occurs under epigenetic control during mitotic activity and may involve the assembly of gamma-tubulin, centrin, calmodulin and a never in mitosis A-type (NIMA) kinase - components also engaged in mitotic processes.</dcterms:abstract> <dc:language>eng</dc:language> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:title>The contractile vacuole complex of protists - New cues to function and biogenesis</dcterms:title> <dspace:hasBitstream rdf:resource=""/> <bibo:uri rdf:resource=""/> <dc:date rdf:datatype="">2013-09-11T13:54:33Z</dc:date> <dc:rights>terms-of-use</dc:rights> </rdf:Description> </rdf:RDF>

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