The protein turnover and trafficking of Chlamyopsin6 is regulated by IFT88 and IFT52 in the Chlamydomonas reinhardtii.
Sushmita K, Sharma S, Singh R, Kateriya S
Optogenetics
Single-celled green algae like Chlamydomonas are ancient relatives of every plant in your garden, and cracking how their light-sensing proteins travel inside cells brings scientists closer to tools that could one day let us control plant growth or stress responses with a flash of light.
Green algae have special proteins that respond to light, almost like tiny light switches inside the cell. Scientists found that two of these proteins end up in different places — one goes to the 'eye' of the algae, the other goes to its hair-like flagella. They figured out which molecular movers (called IFT proteins) are responsible for getting the second protein to the right place and keeping it stable there.
Key Findings
Chlamyopsin5 localizes primarily to the eyespot and its trafficking is independent of the IFT (intraflagellar transport) machinery
Chlamyopsin6 localizes to both the flagella and eyespot, and its delivery to the flagella requires the IFT transport system
IFT88 and IFT52 stabilize Chlamyopsin6 protein turnover, while IFT20 physically interacts with Chlamyopsin6
chevron_right Technical Summary
Scientists discovered how a light-sensitive protein in green algae gets shuttled to specific locations inside the cell — findings that could improve how researchers use light to control biological processes in living systems.
Abstract Preview
Microbial rhodopsin-based optogenetics has been widely applied to diverse mammalian and plant cell types for controlling membrane potential mediated responses. Microbial rhodopsin fusions like RhoP...
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The green algae are a group of chlorophyll-containing autotrophic algae consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophyta) have emerged deep within the charophytes as a sister of the Zygn...