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Challenging crossroad in vascular plant photosynthesis (CROSBI ID 683349)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Fulgosi, Hrvoje ; Vojta, Lea ; Rac, Anja Challenging crossroad in vascular plant photosynthesis // The 2nd International Conference on Plant & Molecular Biology. Cleveland (OH): Hazel group, 2019. str. 15-15

Podaci o odgovornosti

Fulgosi, Hrvoje ; Vojta, Lea ; Rac, Anja

engleski

Challenging crossroad in vascular plant photosynthesis

In photosynthesis, flavoenzyme ferredoxin NADP+ oxidoreductase (FNR) catalyses the transfer of electrons from reduced ferredoxin (Fd) to NADP+. This reaction is known as the last step in the linear electron transport (LET) chain. A number of studies have identified various proteinaceous components proposed to be involved in FNR binding or recruitment to thylakoid membranes. However, only two proteins Tic62 and TROL (thylakoid rhodanese-like protein) have endured extended scientific scrutiny as being responsible for FNR binding in chloroplasts, and only TROL is present in all vascular plants investigated. Binding of FNR to TROL appears to be dynamic and could be modulated by redox ques originating from thylakoid lumen. TROL has unique molecular architecture dominated by centrally positioned rhodanase-like domain that protrudes into thylakoid lumen and a C-terminally located FNR-binding motif, which is connected to the remaining polypeptide by proline-valine rich stretch dubbed the PEPE region. PEPE most likely enables swivelling of bound FNR and its association with alternative protein complexes. FNR-TROL interaction reveals very fast transfer(s) route(s) that can distribute electrons downstream of PSI between energy-conserving and energy-dissipating pathways. Spatio-temporal regulation and molecular properties of this unique molecular crossroad will be discussed.

FNR ; TROL ; photosystem I ; Arabidopsis thaliana ; photosynthesis regulation

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Podaci o prilogu

15-15.

2019.

objavljeno

Podaci o matičnoj publikaciji

The 2nd International Conference on Plant & Molecular Biology

Cleveland (OH): Hazel group

Podaci o skupu

2nd International Conference on Plant and Molecular Biology

pozvano predavanje

23.10.2019-25.10.2019

Amsterdam, Nizozemska

Povezanost rada

Biologija