Dataset Information

UV-A receptor CRY-DASH1 up- and UV-A receptor CRY-DASH1 up- and downregulates proteins involved in different plastidial pathways

ABSTRACT: Algae encode up to five different types of cryptochrome photoreceptors. So far, relatively little is known about the biological functions of the so-called DASH (Drosophila, Arabidopsis, Synechocystis and Homo)-type cryptochromes. The green alga Chlamydomonas reinhardtii encodes two of them. CRY-DASH1 also called DCRY1 has its maximal absorption peak in the UV-A range. It is localized in the chloroplast and plays an important role in balancing the photosynthetic machinery. Here, we performed a comparative analysis of chloroplast proteins from wild type and a knockout mutant of CRY-DASH1 named cry-dash1mut, using label-free quantitative proteomics as well as immunoblotting. Our results show upregulation of enzymes involved in specific pathways in the mutant including key enzymes of chlorophyll and carotenoid biosynthesis consistent with increased levels of photosynthetic pigments in cry-dash1mut. There is also an increase in certain redox as well as photosystem I and II proteins, including D1. Strikingly, CRY-DASH1 is coregulated in a D1 deletion mutant, where its amount is increased. In contrast, key proteins of the central carbon metabolism, including glycolysis/gluconeogenesis, dark fermentation and the oxidative pentose pathway are downregulated in cry-dash1mut. Similarly, enzymes of histidine biosynthesis are downregulated in cry-dash1mut leading to a reduction in the amount of free histidine. Yet, transcripts encoding for several of these proteins are at a similar level in the wild type and cry-dash1mut or even opposite. We show that CRY-DASH1 can bind to RNA, taking the the psbA RNA encoding D1 as target. These data suggest that CRY-DASH1 regulates plastidial metabolic pathways at the post-transcriptional level.

INSTRUMENT(S): Q Exactive Plus

ORGANISM(S): Chlamydomonas Reinhardtii Cc3269

TISSUE(S): Photosynthetic Cell

DISEASE(S): Disease Free

SUBMITTER: Volker Wagner

LAB HEAD: Maria Mittag

PROVIDER: PXD045811 | Pride | 2023-10-02

REPOSITORIES: Pride

ACCESS DATA

Dataset's files

Source:

Items per page:

1 - 5 of 56

Publications

The UV-A Receptor CRY-DASH1 Up- and Downregulates Proteins Involved in Different Plastidial Pathways.

Rredhi Anxhela A Petersen Jan J Wagner Volker V Vuong Trang T Li Wenshuang W Li Wei W Schrader Laura L Mittag Maria M

Journal of molecular biology 20230910 5

Algae encode up to five different types of cryptochrome photoreceptors. So far, relatively little is known about the biological functions of the DASH (Drosophila, Arabidopsis, Synechocystis and Homo)-type cryptochromes. The green alga Chlamydomonas reinhardtii encodes two of them. CRY-DASH1 also called DCRY1 has its maximal absorption peak in the UV-A range. It is localized in the chloroplast and plays an important role in balancing the photosynthetic machinery. Here, we performed a comparative ...[more]

PMID: 37699454

Similar Datasets

Project description:Tuberculosis (TB) still represents a major global health problem affecting over 10 million people worldwide. At present, there is an urgent need for defining prognostic parameters, differential diagnostic, and correlates of protection from the disease. The gold standard test for TB diagnosis is still smear microscopy, but insufficiently detects pulmonary disease, besides the necessity of having laboratory infrastructures and be time-consuming. Both LAM urine test and Xpert MTB/RIF have been major game changers in this context. However, the low sensitivity of the former and the considerable delay of sample delivery of the latter, make the improvement of the TB diagnostic landscape a priority. The development of rapid point-of-care (POC)-based testing approaches would represent an important breakthrough in TB diagnostics in view of these short-comings. Most forms of life produce extracellular vesicles (EVs) and since the first detection of bacterial EVs more than 60 years, subsequent studies have demonstrated their functional commonality despite differences in bacterial cell envelope architecture. We demonstrated that Mycobacterium tuberculosis (Mtb), the causative agent of TB, produces EVs in vitro and in vivo as part of a sophisticated mechanism to manipulate host cellular physiology and to evade the host immune system. In a previous serology study, Mtb EVs (MEVs) were used to investigate their potential role as biomarkers to discern between different forms of disease status. It was shown that the recognition of several MEV associated proteins could have diagnostic properties. In this study, we pursued to expand the capabilities of MEVs in the context of TB diagnostics by analyzing the composition of MEVs isolated from Mtb cultures submitted to iron starvation and, testing their immunogenicity against a new cohort of serum samples including TB+, LTBI and healthy donors. We found that MEVs differ in protein composition when Mtb is under host-related stress yet MEVs seem to carry antigens that could serve as bonafide markers for direct detection. In addition, TB serology revealed three new MEV antigens with great biomarker capacity. These results encourage investigating the feasibility of the development of a POC device based on selected MEV-associated proteins.

Project description:Comparison of gene expression profiles of wild-type and fl-mutant upland cotton ovules Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+5-Cy5 wt+3-Cy3 Set 1 (dye swap): wt+5-Cy3 wt+3-Cy5 Set 2: wt+5-Cy5 wt+3-Cy3 Set 2 (dye swap): wt+5-Cy3 wt+3-Cy5 Set 3: wt+5-Cy5 wt+3-Cy3 Set 3 (dye swap): wt+5-Cy3 wt+3-Cy5 GSM63341, GSM63342, GSM63343, GSM63344, GSM63345, GSM63346 Data for 3 replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+3-Cy5 vs wt+3-Cy3 Set 2: wt+3-Cy3 vs wt+3-Cy5 Set 3: wt+3-Cy5 vs wt+3-Cy3 GSM63365, GSM63366, GSM63367 Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+3-Cy5 wt-3-Cy3 Set 1 (dye swap): wt+3-Cy3 wt-3-Cy5 Set 2: wt+3-Cy5 wt-3-Cy3 Set 2 (dye swap): wt+3-Cy3 wt-3-Cy5 Set 3: wt+3-Cy5 wt-3-Cy3 Set 3 (dye swap): wt+3-Cy3 wt-3-Cy5 GSM63368, GSM63369, GSM63370, GSM63371, GSM63372, GSM63373 Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: 0wt-Cy5 wt+3-Cy3 Set 1 (dye swap): 0wt-Cy3 wt+3-Cy5 Set 2: 0wt-Cy5 wt+3-Cy3 Set 2 (dye swap): 0wt-Cy3 wt+3-Cy5 Set 3: 0wt-Cy5 wt+3-Cy3 Set 3 (dye swap): 0wt-Cy3 wt+3-Cy5 GSM63374, GSM63375, GSM63376, GSM63377, GSM63378, GSM63379 Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+3-Cy5 fl+3-Cy3 Set 1 (dye swap): wt+3-Cy3 fl+3-Cy5 Set 2: wt+3-Cy5 fl+3-Cy3 Set 2 (dye swap): wt+3-Cy3 fl+3-Cy5 Set 3: wt+3-Cy5 fl+3-Cy3 Set 3 (dye swap): wt+3-Cy3 fl+3-Cy5 GSM63391, GSM63392, GSM63393, GSM63394, GSM63395, GSM63396 Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+10-Cy5 fl+10-Cy3 Set 1 (dye swap): wt+10-Cy3 fl+10-Cy5 Set 2: wt+10-Cy5 fl+10-Cy3 Set 2 (dye swap): wt+10-Cy3 fl+10-Cy5 Set 3: wt+10-Cy5 fl+10-Cy3 Set 3 (dye swap): wt+10-Cy3 fl+10-Cy5 GSM63397, GSM63398, GSM63399, GSM63400, GSM63401, GSM63402 Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+10-Cy5 wt+3-Cy3 Set 1 (dye swap): wt+10-Cy3 wt+3-Cy5 Set 2: wt+10-Cy5 wt+3-Cy3 Set 2 (dye swap): wt+10-Cy3 wt+3-Cy5 Set 3: wt+10-Cy5 wt+3-Cy3 Set 3 (dye swap): wt+10-Cy3 wt+3-Cy5 GSM63403, GSM63404, GSM63405, GSM63406, GSM63407, GSM63408 Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+15-Cy5 wt+3-Cy3 Set 1 (dye swap): wt+15-Cy3 wt+3-Cy5 Set 2: wt+15-Cy5 wt+3-Cy3 Set 2 (dye swap): wt+15-Cy3 wt+3-Cy5 Set 3: wt+15-Cy5 wt+3-Cy3 Set 3 (dye swap): wt+15-Cy3 wt+3-Cy5 GSM63409, GSM63410, GSM63411, GSM63412, GSM63413, GSM63414 Data for six replicate experiments performed with biologically independent samples. Cy3 and Cy5 dyes were used as follows: Set 1: wt+20-Cy5 wt+3-Cy3 Set 1 (dye swap): wt+20-Cy3 wt+3-Cy5 Set 2: wt+20-Cy5 wt+3-Cy3 Set 2 (dye swap): wt+20-Cy3 wt+3-Cy5 Set 3: wt+20-Cy5 wt+3-Cy3 Set 3 (dye swap): wt+20-Cy3 wt+3-Cy5 GSM63415, GSM63416, GSM63417, GSM63418, GSM63419, GSM63420

			Action	DRS
	20220704_AR_CD1.raw	Raw
	20220704_AR_CD10.raw	Raw
	20220704_AR_CD11.raw	Raw
	20220704_AR_CD12.raw	Raw
	20220704_AR_CD2.raw	Raw