Ontology highlight
ABSTRACT:
PROVIDER: PRJNA559553 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Chandeleur Island 2017 -2018 Amplicon Study Raw sequence reads
| PRJNA514746 | ENA
Project description:Chandeleur Island 2016 Amplicon Study Raw sequence reads
| PRJNA433990 | ENA
Project description:Fusarium oxysporum is an worldwide economically important plant fungi pathogen that can cause vascular wilt disease on a wide variety of hosts (Williamson et al., 2007). In recent years, extensive research has been conducted to interpret transcriptional regulation of virulence genes in FO. (Weiberg et al., 2013;Brandhoff et al., 2017;Wang et al., 2017;Wang et al., 2018;Porquier et al., 2019). However, gaps in the protein level studies limited deeper understanding of molecular basis of FO. pathogenesis. In this study, we conducted the first proteome-wide analysis in FO.
2023-07-17 | PXD043830 | Pride
Project description:In recent years, several small molecule cytotoxic drugs have been identified as potential inhibitors of ribosome biogenesis (Drygin et al., 2011; Peltonen et al., 2014a; Peltonen et al., 2014b). CX-5461 is one such drug that has also demonstrated anticancer potential for a wide range of malignancies (Bywater et al., 2012; Cornelison et al., 2017; Devlin et al., 2015; Drygin et al., 2011; Hald et al., 2019; Hein et al., 2017; Ismael et al., 2019; Lawrence et al., 2018; Lee et al., 2017; Negi and Brown, 2015; Taylor et al., 2019; Xu et al., 2017; Yan et al., 2017) (Haddach et al., 2012), and is presently under phase I trials for the treatment of both hematological cancers and solid tumours (Group, 2016; Khot et al., 2019). CX-5461 was initially characterized as an inhibitor of RNA Polymerase I (RPI/PolR1/PolI) that is responsible for the synthesis of the major ribosomal RNAs and the initial step in ribosome biogenesis (Drygin et al., 2011). Since RPI and its corresponding core transcription factors are dedicated to this task alone, they present ideal molecular targets by which to modulate ribosome biogenesis. However, the specificity of CX-5461 has been questioned and it has been suggested that this drug may also act by stabilizing DNA G-quadruplexes or by “poisoning” topoisomerase II (Topo II). Thus, the primary target of this drug and its mode of action are still in doubt. Here we used Deconvolution-ChIP-Seq in NIH3T3 and HEK293T cells treated for different times with CX-5461. The data show that the primary target of CX5461 is the initiation of ribosomal RNA gene (rDNA) transcription. CX-5461 blocks transcription initiation in vitro and in vivo by arresting RNA polymerase I (RPI/Pol1) within the preinitiation complex. In contrast to previous suggestions, CX-5461 does not effect recruitment of the TBP-TAF complex SL1 to the rDNA promoter, the recruitment of the initiation competent RPI-Rrn3 complex or ongoing transcription elongation, arguing against a role for G-quadruplex stabilization or topoisomerase II poisoning. Inhibition of transcription by CX-5461 is not reversible, the RPI-Rrn3 complex remains arrested in the preinitiation complex even after drug removal. This leads to nucleolar stress, extensive DNA damage and cell senescence. Our data show that the cytotoxicity of CX-5461 is the downstream result of the highly specific inhibition of rDNA transcription. The observation that this inhibition is irreversible will be important for the future design of chemotherapeutic strategies and the avoidance of drug resistance.
2021-04-07 | E-MTAB-9242 | biostudies-arrayexpress
Project description:Lewy body (LB) pathology and loss of dopaminergic neurons are imprints of Parkinson’s disease (PD). LBs are mainly comprised of alpha-Synuclein (Dijkstra et al., 2014). Strolling detection of LBs in brain regions contribute to progressive construct of PD pathology to which molecular mechanisms are not clear (H. Braak & Del Tredici, 2017). Two key facets of LB formation are protein aggregation via misfolding and transmission of misfoldled proteins to various brain regions, eventually causing neuronal death (Goedert, Spillantini, Del Tredici, & Braak, 2013; Pacelli et al., 2015). Misfolding requires alterations in intracellular physiology (Carbone, Costa, Provensi, Mannaioni, & Masi, 2017; Funes et al., 2014; Guzman et al., 2018; Pacelli et al., 2015) and detection of misfolded proteins in exosomes confirms exosomatic transmission (Ngolab et al., 2017). High levels of neurotropic-factors (Brockmann et al., 2017) and changes in bioenergetics are found in PD patients, these can bring physiological alterations (Smith et al., 2018). En masse, these evidences and hipocampal association with synucleopathies (Flores-Cuadrado, Ubeda-Bañon, Saiz-Sanchez, de la Rosa-Prieto, & Martinez-Marcos, 2016) allowed us to probe other volunerable PD proteins in cell-lysate and exosomal proteomes of bFGF treated hippocampal neurons. Using WPCNA we developed co-expression modules and spotted many PD related proteins; which can act as precursors during diseased or onset stage.
2020-07-21 | PXD015969 | Pride
Project description:Phytoplankton blooms represent hotspots of primary production and lead to the formation of particulate organic matter composed of living and dead algal cells. These particles are characterized by steep chemical gradients, for instance in oxygen concentration, that provide diverse ecological niches for specifically adapted microbes to thrive. Particulate fractions were collected at almost daily intervals between early March and late May in 2018. Amplicon sequencing and Meta-omics was used to asses microbial community composition and functionality at different time points.
2024-04-02 | PXD035982 | Pride
Project description:Canonical auxin signalling starts with auxin binding to the receptor complex, followed by modulation of gene transcription and protein abundance (Tan et al., 2007; Chapman and Estelle, 2009; Slade et al., 2017). However, recent studies also showed an alternative mechanism in roots involving intra-cellular auxin perception, but not transcriptional reprogramming (Fendrych et al., 2018). Despite knowledge on effects of auxin on Arabidopsis root growth at the protein and phosphorylation level is increasing (Zhang et al., 2013; Mattei et al., 2013; Slade et al., 2017), it still remains incomplete. To address this gap in our knowledge, we explored the impact of auxin on the root tip proteome and phosphoproteome.
2021-09-09 | PXD021267 | Pride
Project description:Dog River, Chandeluer Is., Dauphin Island, 2018
| PRJNA713809 | ENA
Project description:Temperate perennial plants have to adapt their growth in order to survive over winter conditions and protect their tissues by entering into dormancy. The dormancy phenomenon is a complex process regulated by many factors, externals (photoperiod and temperature) or internals through the transport towards the buds. In order to better understand the molecular mechanisms involved in the regulation of dormancy, we conducted a transcriptomic analysis of flower buds from the late flowering sweet cherry cultivar 'Fertard' during dormancy, from October 2017 to March 2018.
2023-04-15 | GSE229429 | GEO