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Tethering of ferredoxin:NADP+ oxidoreductase to thylakoid membranes is mediated by novel chloroplast protein TROL
| Content Provider | Scilit |
|---|---|
| Author | Juriä, Snjeå¾Ana Hazler-Pilepiä, Kroata Tomaå¡iä, Ana Lepeduå¡, Hrvoje JeliäIä, Branka Puthiyaveetil, Sujith Bionda, Tihana Vojta, Lea Allen, John F. Schleiff, Enrico Fulgosi, Hrvoje |
| Copyright Year | 2009 |
| Description | Journal: The Plant Journal Working in tandem, two photosystems in the chloroplast thylakoid membranes produce a linear electron flow from $H_{2}$O to $NADP^{+}$. Final electron transfer from ferredoxin to $NADP^{+}$ is accomplished by a flavoenzyme $ferredoxin:NADP^{+}$ oxidoreductase (FNR). Here we describe TROL (thylakoid rhodanese-like protein), a nuclear-encoded component of thylakoid membranes that is required for tethering of FNR and sustaining efficient linear electron flow (LEF) in vascular plants. TROL consists of two distinct modules; a centrally positioned rhodanese-like domain and a C-terminal hydrophobic FNR binding region. Analysis of Arabidopsis mutant lines indicates that, in the absence of TROL, relative electron transport rates at high-light intensities are severely lowered accompanied with significant increase in non-photochemical quenching (NPQ). Thus, TROL might represent a missing thylakoid membrane docking site for a complex between FNR, ferredoxin and $NADP^{+}$. Such association might be necessary for maintaining photosynthetic redox poise and enhancement of the NPQ. |
| Related Links | https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-313X.2009.03999.x |
| Ending Page | 794 |
| Page Count | 12 |
| Starting Page | 783 |
| e-ISSN | 1365313X |
| DOI | 10.1111/j.1365-313x.2009.03999.x |
| Journal | The Plant Journal |
| Issue Number | 5 |
| Volume Number | 60 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2009-11-25 |
| Access Restriction | Open |
| Subject Keyword | Journal: The Plant Journal Ferredoxin:nadp+ Oxidoreductase (fnr) Linear Electron Flow Retrograde Signalling |
| Content Type | Text |
| Resource Type | Article |
