Recently, research group led by professor Qiu Baosheng published a paper titled "Hypothetical chloroplast reading frame 51 encodes a photosystem I assembly factor in cyanobacteria" in The Plant Cell, marking a significant advancement in the assembly of photosystem I (PSI) in cyanobacteria.
In this study, the researchers discovered that the existence of a PSI assembly factor, Y3IP1, which interacts with Ycf3 in Arabidopsis thaliana. However, despite this interaction, Y3IP1 cannot compensate for the phenotype resulting from the deletion of Ycf51 in cyanobacteria. This finding suggests that PSI assembly in cyanobacteria exhibits a certain degree of specificity. Ycf51, identified as the first unique PSI assembly factor in cyanobacteria, serves as a pivotal reference for further investigation into the mechanisms underlying light system formation.
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