Transcriptomics

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RNAi profiling by array of human HEp-2 cells with siRNA-mediated depletion of RNase MRP protein components


ABSTRACT: To identify mRNA substrates for the human RNase MRP complex, we examined the effects of siRNA-mediated depletion of RNase MRP (and RNase P) on the transcriptome of HEp-2 cells. The expression of two RNase MRP protein components, hPop1 and Rpp40, was knocked-down and after 48 hours mRNA was isolated from these cells as well as from cells transfected with an siRNA targeting the GFP mRNA (siEGFP), which was used as a control. The expression levels of mRNAs were analyzed on a genome-wide scale using 21K microarrays.

ORGANISM(S): Homo sapiens  

SUBMITTER: Marian Groot Koerkamp   

PROVIDER: E-TABM-981 | ArrayExpress | 2011-04-01

REPOSITORIES: ArrayExpress

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Publications

Viperin mRNA is a novel target for the human RNase MRP/RNase P endoribonuclease.

Mattijssen Sandy S   Hinson Ella R ER   Onnekink Carla C   Hermanns Pia P   Zabel Bernhard B   Cresswell Peter P   Pruijn Ger J M GJ  

Cellular and molecular life sciences : CMLS 20101030 14


RNase MRP is a conserved endoribonuclease, in humans consisting of a 267-nucleotide RNA associated with 7-10 proteins. Mutations in its RNA component lead to several autosomal recessive skeletal dysplasias, including cartilage-hair hypoplasia (CHH). Because the known substrates of mammalian RNase MRP, pre-ribosomal RNA, and RNA involved in mitochondrial DNA replication are not likely involved in CHH, we analyzed the effects of RNase MRP (and the structurally related RNase P) depletion on mRNAs u  ...[more]

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