Manipulation of Actin Cytoskeleton by Intracellular-Targeted ROS Generation
Tetsuya Ishimoto1, Hisashi Mori2
1University of Toyama, Toyama, Japan. ishimoto@med.u-toyama.ac.jp.
Abstract:
A method to generate small amount of reactive oxygen species (ROSs) at intracellular targeted region has great potential to manipulate the function of particular proteins. The present protocol introduces a fusion protein that consisted of firefly luciferase (FLuc), photosensitizer protein KillerRed and F-actin-targeting peptide Lifeact (Lifeact-KillerFirefly) to generate ROSs in the vicinity of F-actin and found that morphological change in F-actin structure was induced by the fusion protein after luciferin treatment. This manipulating and imaging method is of use to analyze the role of the locally generated ROSs on the function of intracellular proteins.
Related Concept Videos
Mechanism of Filopodia Formation
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
Actin Polymerization and Cell Motility
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate....
Cell Motility through Blebbing
Blebbing Through the Matrix
In multicellular...
Generation of Straight or Branched Actin Filaments
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
Mechanism of Lamellipodia Formation
Cytoskeletal Coordination in Cell Migration


