Forster resonance energy transfer (FRET) is an efficient method to visualize the protein-protein interaction in living cells. This technique is based on transfer of energy between two different fluorophores that are fused to two interacting proteins. In this chapter, we described the FRET assay to visualize the protein-protein interaction in plant cells.
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Bacterial cell division and plant chloroplast division require selfassembling Filamentous temperature-sensitive Z (FtsZ) proteins. FtsZ proteins are GTPases sharing structural and biochemical similarities with eukaryotic tubulin. In the moss Physcomitrella, the morphology of the FtsZ polymer networks varies between the different FtsZ isoforms.
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