Title : Cyclophilin 20-3 is positioned as a regulatory hub between light-dependent redox and 12-oxo-phytodienoic acid signaling.

Pub. Date : 2017 Sep 2

PMID : 28805482






6 Functional Relationships(s)
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1 Here we describe that cyclophilin 20-3 (CYP20-3), a binding protein of (+)-12-oxo-phytodienoic acid (OPDA), crisscrosses stress responses with light-dependent redox reactions, which fine-tunes the activity of key enzymes in the plastid photosynthetic carbon assimilation and sulfur assimilation pathways. 12-oxophytodienoic acid peptidylprolyl isomerase H Homo sapiens
2 Here we describe that cyclophilin 20-3 (CYP20-3), a binding protein of (+)-12-oxo-phytodienoic acid (OPDA), crisscrosses stress responses with light-dependent redox reactions, which fine-tunes the activity of key enzymes in the plastid photosynthetic carbon assimilation and sulfur assimilation pathways. 12-oxophytodienoic acid peptidylprolyl isomerase H Homo sapiens
3 Under stressed states, OPDA - accumulated in the chloroplasts - binds and promotes CYP20-3 to transfer electron (e-) from thioredoxins (i.e., type-f2 and -x) to 2-Cys peroxiredoxin B (2-CysPrxB) or serine acetyltransferase 1 (SAT1). 12-oxophytodienoic acid peptidylprolyl isomerase H Homo sapiens
4 Under stressed states, OPDA - accumulated in the chloroplasts - binds and promotes CYP20-3 to transfer electron (e-) from thioredoxins (i.e., type-f2 and -x) to 2-Cys peroxiredoxin B (2-CysPrxB) or serine acetyltransferase 1 (SAT1). 12-oxophytodienoic acid spermidine/spermine N1-acetyltransferase 1 Homo sapiens
5 Under stressed states, OPDA - accumulated in the chloroplasts - binds and promotes CYP20-3 to transfer electron (e-) from thioredoxins (i.e., type-f2 and -x) to 2-Cys peroxiredoxin B (2-CysPrxB) or serine acetyltransferase 1 (SAT1). 12-oxophytodienoic acid spermidine/spermine N1-acetyltransferase 1 Homo sapiens
6 Thus, we conclude that CYP20-3 is positioned as a unique metabolic hub in the interface between photosynthesis (light) and OPDA signaling, where controls resource (e-) allocations between plant growth and defense responses. 12-oxophytodienoic acid peptidylprolyl isomerase H Homo sapiens