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RNAseq of ribosomal fractionation to assess the effect of CBFB on translation regulation

ABSTRACT: RNAseq of ribosomal fractionation to assess the effect of CBFB on translation regulation

PROVIDER: PRJNA488239 | ENA |

REPOSITORIES: ENA

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RNAseq of ribosomal fractionation to assess the effect of CBFB on translation regulation

Project description:Five million wild type (WT) and CBFB knockout (CBFB_KO) MCF10A cells were subject to ribosomal fractination. Total RNA from each fraction was extracted using Trizol followed by Qiagen RNAeasy kit. Polyribosomal fractions were polled as one sample. RNAs in the free, mono- (mono) and polyribosomal (poly) fractions were used for RNAseq.

2019-04-18 | GSE119131 | GEO

Cbfb/Runx1-repression independent blockage of differentiation and accumulation of Csf2rb expressing cells by Cbfb-MYH11

Project description:It is known that CBFB-MYH11, the fusion gene generated by inversion of chromosome 16 in human acute myeloid leukemia, is causative for oncogenic transformation. However, the mechanism by which CBFB-MYH11 initiates leukemogenesis is not clear. Previously published reports showed that CBFB-MYH11 dominantly inhibits RUNX1 and CBFB, and such inhibition has been suggested as the mechanism for leukemogenesis. However, knockin mice expressing Cbfb-MYH11 (Cbfb+/MYH11) showed defects in primitive hematopoiesis not seen in Cbfb null (Cbfb-/-) embryos indicating that Cbfb-MYH11 has repression independent activities as well. To identify gene expression changes associated with this novel activity, we compared the gene expression profile in the blood cells of Cbfb+/MYH11 and Cbfb-/- embryonic day 12.5 (E12.5) embryos with that of their wildtype littermates. Cbfb-MYH11 chimeras were mated to C57/Bl6 females to generate Cbfb+/MYH11 (Cbfb+/MYH11) and Cbfb+/+ (WT) embryos. Cbfb+/- x Cbfb+/- matings were used to generate Cbfb+/+ (Cbfb+/+) and Cbfb-/- (Cbfb-/-) embryos. Blood from 8-10 E12.5 embryos of the same genotype was pooled, and RNA was isolated, labeled, and hybridized to Affymetrix Genechip mouse microarray (430 2.0) chips. 4 chips were used for both the Cbfb+/MYH11 and littermate control samples. 3 chips were used for the Cbfb-/- samples and littermate control samples.

2010-04-12 | E-GEOD-19194 | biostudies-arrayexpress

Cbfb/Runx1-repression independent blockage of differentiation and accumulation of Csf2rb expressing cells by Cbfb-MYH11

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Duplicated ribosomal protein paralogs promote alternative translation and drug resistance

Project description:Ribosomes are often seen as monolithic machines produced from uniformly regulated genes. However, in yeast most ribosomal proteins come from duplicated genes. Here, we demonstrate that gene duplication may serve as an adaption mechanism modulating the global proteome through the differential expression of ribosomal proteins paralogs after exposure to stress. Our data indicate that the yeast paralog pair of the ribosomal protein L7/uL30 produces two differentially acetylated proteins. Under normal conditions most ribosomes incorporate the hypo-acetylated major form favoring the translation of genes with short open reading frames. Exposure to drugs, on the other hand, increases the production of ribosomes carrying the hyper-acetylated minor paralog that increases translation of long reading frames. Many of these long genes encode cell wall proteins that increase drug resistance in a programed change in translation equilibrium. Together the data reveal a mechanism of translation control through the differential fates of near-identical ribosomal protein isoforms.

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Regulation of translation by site-specific ribosomal RNA methylation.

Project description:Regulation of translation by site-specific ribosomal RNA methylation.

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RNA-fractionation sequencing

Project description:RNA-fractionation sequencing

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Gene expression analysis of Cbfb-deficient LSK and GMP

Project description:Runx/Cbfb heterodimers play important roles in the development of hematopoietic cells in mouse embryos and adults. In order to identify genes that are regulated by Runx/Cbfb, we purified Lin– c-kit+ Sca1+ (LSK) cells and Lin– c-kit+ Sca1– CD16/32+ (GMP) cells from Vav1-iCre x Cbfb(F/F) and Vav1-iCre x Cbfb(F/+) mice and profiled gene expression using microarray.

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