Abstract
AbstractAnnexins are small proteins capable of membrane attachment or insertion. Animal annexins can form Ca2+-permeable conductances in planar lipid bilayers or vesicles. Some have also been implicated in the regulation of cytosolic free calcium. Similar results are now being reported for plant annexins, justifying their consideration as novel components of calcium-signalling networks. Peroxidation of bilayers alters the calcium transport characteristics of plant annexins, suggesting that they could act as intersections between calcium and reactive oxygen-signalling pathways. The ability of plant annexins to bind actin, hydrolyse ATP/GTP and act as peroxidases sets them apart from conventional calcium transporters. Here, their structure and functions are reviewed.KeywordsMembrane BindingMembrane AssociationPolar GrowthPlanar Lipid BilayerPhospholipid HeadgroupThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Published Version
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