Photoperiodic control of the Arabidopsis proteome reveals a translational coincidence mechanism

SynthSys is the University of Edinburgh's research organisation in interdisciplinary, Synthetic and Systems Biology, founded in 2012 as the successor to the Centre for Systems Biology at Edinburgh (CSBE).

Andrew Millar's research group, University of Edinburgh

EU FP7 collaborative project TiMet, award number 245143. Funded 2010-2015. "TiMet assembles world leaders in experimental and theoretical plant systems biology to advance understanding of the regulatory interactions between the circadian clock and plant metabolism, and their emergent effects on whole-plant growth and productivity."

Literature data used in the Seaton et al. 2017 study; data processing by Daniel Seaton.

Experimental data reported in the Seaton et al. 2017 study; data processing by Alex Graf. Part of the EU FP7 TiMet project.

Literature data and associated scripts analysed in the Seaton et al. 2017 study; data processing by Daniel Seaton.

Data analysis and modelling scripts and results for the Seaton et al. 2017 study, from Daniel Seaton.

Transcript profiling by microarray in 4, 6, 8, 12 and 18 h photoperiods, originally published in Flis et al, 2016, Photoperiod-dependent changes in the phase of core clock transcripts and global transcriptional outputs at dawn and dusk in Arabidopsis. doi: 10.1111/pce.12754.

Plant material The same plant material used for transcriptome analysis in (Flis et al., 2016) was the basis of our proteome study. Briefly, Arabidopsis thaliana Col-0 plants were grown on GS 90 soil mixed in a ratio 2:1 (v/v) with vermiculite. Plants were grown for 1 week in a 16 h light (250 μmol m−2 s−1, 20 °C)/8 h dark (6 °C) regime followed by an 8 h light (160 μmol m−2 s−1, 20 °C)/16 h dark (16 °C) regime for one week. Plants were then replanted with five seedlings per pot, transferred for ...

These Python scripts define and simulate the translational coincidence model. This model takes measured transcript dynamics (Blasing et al, 2005) in 12L:12D, measured synthesis rates of protein in light compared to dark (Pal et al, 2013), and outputs predicted changes in protein abundance between short (6h) and long (18h) photoperiods. These are compared to the photoperiod proteomics dataset we generated.

Proteomics data for N15 incorporation into protein in Ostreococcus grown in 12L:12D light:dark cycles.

Quantitative proteomic analysis of Cyanothece ATCC51142 grown in 12L:12D light:dark cycles, using partial metabolic labeling and LC-MS analysis.

Data and Python scripts to run the analysis of literature data that estimates rates of protein synthesis in the light and dark, and overall rates of protein turnover, in Cyanothece and Ostrecoccus tauri.

Data curation notes provided by Alex Graf via Willi Gruissem, in addition to the PRIDE deposition.

The Excel file gives the list of samples uploaded into PRIDE. here - https://fairdomhub.org/data_files/3704

The published experimental design might lead one to expect 4x3x2x7 = 168 samples. There are more than 168 samples in the PRIDE upload for the following reasons:

First, all of the measurements from the experiment had been uploaded, including files for measurements that were repeated because of ...

This Excel file lists the samples uploaded in PRIDE. The table “Table Sorted PP and Replicates” in the Excel file has all the relevant annotation.

There are more than the expected 168 samples in the PRIDE upload for the following reasons:

First, all of the measurements from the experiment had been uploaded, including files for measurements that were repeated because of problems during the MS run. These samples are not annotated in the table. Second, we had included 4 Gold Standard samples (2 ...

Microarray data at end of day (ED) and end of night (EN) in 4, 6, 8, 12, and 18h photoperiods.

Mean and standard deviation of protein abundances in 6h, 8h, 12h, and 18h photoperiods.

Results of the statistical analysis, identifying proteins that change in abundance significantly across photoperiods.

Proteomics data for N15 incorporation into protein in Ostreococcus grown in 12L:12D light:dark cycles.

Quantitative proteomic analysis of Cyanothece ATCC51142 grown in 12L:12D light:dark cycles, using partial metabolic labeling and LC-MS analysis.

Python scripts to run the analysis estimating rates of protein synthesis in the light and dark, and overall rates of protein turnover, in Cyanothece and Ostrecoccus tauri.