To understand the impact of alternative translation initiation on a proteome, we performed the first study on protein turnover using positional proteomics and ribosome profiling to distinguish between N-terminal proteoforms of individual genes. Overall, we monitored the stability of 1,941 human N-terminal proteoforms, including 147 N-terminal proteoform pairs that originate from alternative translation initiation, alternative splicing or incomplete processing of the initiator methionine. Study design: ribosome profiling of lactimidomycin and cycloheximide treated human Jurkat T-lymphocytes
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View SamplesTranscriptomic profiling of chemical exposure reveals roles of Yap1 in protecting yeast cells from oxidative and other types of stresses
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Disease, Cell line
View SamplesZebrafish ZF4 cell exposed to MMS.
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View SamplesB cel receptor (BCR) signaling and downstream NF-kB activity are crucial for the generation and activation of innate-like B-1 and conventional B-2 B cells, yet the molecular requirements for these signaling pathways are not fully understood.
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Specimen part
View SamplesEpstein-Barr virus (EBV) establishes lifelong infections in its human host. The virus is associated with a broad range of malignancies of lymphoid and epithelial origin, including Burkitt's lymphoma, post-transplant lymphoproliferative disease, nasopharyngeal carcinoma and gastric carcinoma. During the latent phase of its life cycle, EBV expresses more than 40 mature miRNAs that are highly abundant in tumor cells and may contribute to oncogenesis. Although multiple studies have assessed the relative expression profiles of EBV miRNAs in tumor cells, data linking these expression levels to functional target knockdown is mostly lacking. Therefore we set out to systematically assess the EBV miRNA expression levels in EBV+ tumour cell lines, and correlate this to their functional silencing capacity in these cells. We provide comprehensive EBV miRNA expression profiles of the EBV+ cell lines C666-1 (nasopharyngeal carcinoma), SNU-719 (gastric carcinoma), Jijoye (Burkitt's lymphoma), and AKBM (Burkitt's lymphoma) and of EBV- cells ectopically expressing the BART miRNA cluster. By deep sequencing the small RNA population and conducting miRNA-reporter experiments to assay miRNA potency, we were able to compare the expression profiles of the EBV miRNAs with their functional silencing efficacy. We observe a strong correlation between miRNA expression levels and functional miRNA activity. There is large variation in expression levels between EBV miRNAs in a given cell line, whereas the relative expression profiles are well maintained between cell lines. Furthermore, we show that miRNA arm selection bias is less pronounced for viral miRNAs than for human miRNAs. In addition to encoding the largest number of precursor miRNAs of all human herpesviruses, EBV expresses many miRNAs precursors that yield two functional miRNA strands, rather than one guide strand and a non-functional passenger strand. This reduced strand bias may increase the size of the EBV miRNA targetome.
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View Samplesgene expression of human gastric carcinoma cell line NCI-N87 under quercetin treatment
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Sex, Specimen part, Cell line
View SamplesThe object of the study is to examine the role of the neuropeptide Y (NPY) and its receptor (NPY1R) on pulmonary phagocytes in the pathology of influenza virus infection. Wild type and phagocyte-specific NRY1R knockout mice were non-infected or infected with influenza virus, and mRNA-seq analyses were performed using pulmonary phagocytes isolated from those mice.
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View SamplesThis is the RNA-seq data of the brain of the offspring derived from space-preserved spermatozoa and controls.
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View SamplesThe study aims to determine the set of transcriptional cell types that make up the mouse brain
Molecular Architecture of the Mouse Nervous System.
Sex, Specimen part, Cell line
View SamplesTo identify YpdB-regulated genes, the transcriptome profiles of E. coli cells overproducing either the response regulator (RR) YpdB or the RR YehS (control) were comparatively analyzed. The expression level of 15 genes varied more than 1.9-fold.
Identification of a target gene and activating stimulus for the YpdA/YpdB histidine kinase/response regulator system in Escherichia coli
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