Proteomics

Dataset Information

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Mild proteasomal stress improves photosynthetic performance in Arabidopsis chloroplasts


ABSTRACT: The ppi2 mutant introgressed into the Columbia-0 ecotype as previously reported. Doublemutant ppi2xrpn8a was crossed with the above referenced genotypes using heterozygous ppi2 plants. After 2 days of stratification at 4 °C the plants were grown on half-strength Murashige and Skoog (M&S) medium supplemented with 0.8% (w/v) plant agar (Duchefa) and 0.8% (w/v) sucrose under short day conditions.

INSTRUMENT(S): Orbitrap Fusion Lumos

ORGANISM(S): Arabidopsis Thaliana (mouse-ear Cress)

TISSUE(S): Plant Cell, Root, Photosynthetic Cell, Leaf, Rosette, Shoot

SUBMITTER: Sacha Baginsky  

LAB HEAD: Sacha Baginsky

PROVIDER: PXD017126 | Pride | 2020-05-27

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
ChaFRADIC_summary.csv Csv
Lumos01052.raw Raw
Lumos01053.raw Raw
Lumos01054.raw Raw
Lumos01055.raw Raw
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Publications

Mild proteasomal stress improves photosynthetic performance in Arabidopsis chloroplasts.

Grimmer Julia J   Helm Stefan S   Dobritzsch Dirk D   Hause Gerd G   Shema Gerta G   Zahedi René P RP   Baginsky Sacha S  

Nature communications 20200403 1


The proteasome is an essential protein-degradation machinery in eukaryotic cells that controls protein turnover and thereby the biogenesis and function of cell organelles. Chloroplasts import thousands of nuclear-encoded precursor proteins from the cytosol, suggesting that the bulk of plastid proteins is transiently exposed to the cytosolic proteasome complex. Therefore, there is a cytosolic equilibrium between chloroplast precursor protein import and proteasomal degradation. We show here that a  ...[more]

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