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Rules governing translation selectivity under limiting ribosome availability

ABSTRACT: Rules governing translation selectivity under limiting ribosome availability

PROVIDER: PRJNA513511 | ENA |

REPOSITORIES: ENA

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Rules governing translation selectivity under limiting ribosome availability

Project description:Ribosomopathies are cell-type-specific pathologies related to a ribosomal protein (RP) gene insult. The 5q- syndrome is a somatic ribosomopathy linked to RPS14 gene haploinsufficiency and characterized by a prominent erythroid hypoplasia. Using quantitative proteomic, we show that GATA1 protein expression is low in shRPS14 cells in which ribosome quantities are diminished. Here, we investigated the cause of low GATA1 protein expression in limiting ribosome availability. A global analysis of translation in RPs deficiencies highlights the rules that drive translation selectivity. We demonstrate that in addition of the transcript length, a high codon adaptation index (CAI) and a highly structured 3’UTR are the key characteristics for a selective translation. An integrated analysis of transcriptome and proteome confirms that the post-transcriptional regulations of gene expression are directly linked to the criteria governing the translational selectivity. In particular, these criteria explain GATA1 translation default with unprecedented precision. More generally, the proteins that accumulate along normal erythropoiesis share the determinants of translation selectivity revealed by the conditions of limiting ribosome availability. We performed translatome expression profiling of cells infected with shRPS14 or shSCR

2020-04-28 | GSE124800 | GEO

Molecular rules governing de novo methylation in cancer

Project description:De novo methylation of CpG islands is seen in many tumors, but the general rules governing this process are not known. By analyzing DNA from tumors, as well as normal tissues, and by utilizing a wide range of published data, we have been able to identify a well-defined set of tumor targets, each of which has its own M-bM-^@M-^\coefficientM-bM-^@M-^] of methylation that is largely determined by its inherent relative ability to recruit the polycomb complex. This pattern is initially formed by a slow process of de novo methylation that occurs during aging and then undergoes expansion early in tumorigenesis, where it may play a role as an inhibitor of development-associated gene activation. We also demonstrate that DNA methylation patterns can be used to diagnose the primary tissue source of tumor metastases. CpG-methylated genomic DNA was enriched using a methyl-DNA immunoprecipitation (mDIP) assay. DNA from the input and bound (enriched) DNA for each sample were labeled and hybridized on the array to define the methylation state of each region.

2014-03-26 | E-GEOD-38142 | biostudies-arrayexpress

Molecular rules governing de novo methylation in cancer

Project description:De novo methylation of CpG islands is seen in many tumors, but the general rules governing this process are not known. By analyzing DNA from tumors, as well as normal tissues, and by utilizing a wide range of published data, we have been able to identify a well-defined set of tumor targets, each of which has its own “coefficient” of methylation that is largely determined by its inherent relative ability to recruit the polycomb complex. This pattern is initially formed by a slow process of de novo methylation that occurs during aging and then undergoes expansion early in tumorigenesis, where it may play a role as an inhibitor of development-associated gene activation. We also demonstrate that DNA methylation patterns can be used to diagnose the primary tissue source of tumor metastases.

2014-03-26 | GSE38142 | GEO

High-throughput functional analysis of lncRNA core promoters elucidates rules governing tissue specificity

Project description:High-throughput functional analysis of lncRNA core promoters elucidates rules governing tissue specificity

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Integrated analyses of translatome and proteome identify the rules of translation selectivity in RPS14-deficient

Project description:Integrated analyses of translatome and proteome identify the rules of translation selectivity in RPS14-deficient

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Uncovering universal rules governing the selectivity of the archetypal DNA glycosylase TDG.

Project description: Not available

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Substrate selectivity for semisynthetic CK2 proteins

Project description:This SuperSeries is composed of the following subset Series: GSE33149: Substrate selectivity for semisynthetic CK2 proteins with various posttranslational modifications GSE33150: Substrate selectivity for semisynthetic CK2 proteins with Pin1 Refer to individual Series

2011-10-24 | E-GEOD-33151 | biostudies-arrayexpress

Transcriptional responses of Acinetobacter baumannii ATCC 17978 to limiting iron availability

Project description:A. baumannii ATCC 17978 cells were incubated under iron replete (mueller-hinton) and iron limiting (MH + 200 µM 2,2'-dipyridyl) conditions, total RNA was extracted when cultures reached OD600=0.7.

2013-10-18 | GSE24921 | GEO

Glutamine addicted myeloma cells inhibits osteoblastic differentiation of bone marrow mesenchymal stromal cells limiting asparagine availability.

Project description:Glutamine addicted myeloma cells inhibits osteoblastic differentiation of bone marrow mesenchymal stromal cells limiting asparagine availability.

| PRJNA616375 | ENA

Transcriptional responses of Acinetobacter baumannii ATCC 17978 to limiting iron availability

Project description:A. baumannii ATCC 17978 cells were incubated under iron replete (mueller-hinton) and iron limiting (MH + 200 ÂµM 2,2'-dipyridyl) conditions, total RNA was extracted when cultures reached OD600=0.7. The probes on the microarray cover all predicted open reading frames (at least 4 per ORF) and additional replicates of housekeeping genes of the A. baumannii ATCC 17978 genome

2013-10-18 | E-GEOD-24921 | biostudies-arrayexpress

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