TY - JOUR
T1 - Structure of plant photosystem I in a native assembly state defines PsaF as a regulatory checkpoint
AU - Naschberger, Andreas
AU - Fadeeva, Mariia
AU - Klaiman, Daniel
AU - Borovikova-Sheinker, Anna
AU - Caspy, Ido
AU - Nelson, Nathan
AU - Amunts, Alexey
N1 - Publisher Copyright:
© The Author(s) 2024. corrected publication 2024.
PY - 2024/6
Y1 - 2024/6
N2 - Plant photosystem I (PSI) consists of at least 13 nuclear-encoded and 4 chloroplast-encoded subunits that together act as a sunlight-driven oxidoreductase. Here we report the structure of a PSI assembly intermediate that we isolated from greening oat seedlings. The assembly intermediate shows an absence of at least eight subunits, including PsaF and LHCI, and lacks photoreduction activity. The data show that PsaF is a regulatory checkpoint that promotes the assembly of LHCI, effectively coupling biogenesis to function.
AB - Plant photosystem I (PSI) consists of at least 13 nuclear-encoded and 4 chloroplast-encoded subunits that together act as a sunlight-driven oxidoreductase. Here we report the structure of a PSI assembly intermediate that we isolated from greening oat seedlings. The assembly intermediate shows an absence of at least eight subunits, including PsaF and LHCI, and lacks photoreduction activity. The data show that PsaF is a regulatory checkpoint that promotes the assembly of LHCI, effectively coupling biogenesis to function.
UR - http://www.scopus.com/inward/record.url?scp=85194722138&partnerID=8YFLogxK
U2 - 10.1038/s41477-024-01699-8
DO - 10.1038/s41477-024-01699-8
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C2 - 38816499
AN - SCOPUS:85194722138
SN - 2055-026X
VL - 10
SP - 874
EP - 879
JO - Nature Plants
JF - Nature Plants
IS - 6
ER -