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Gene expression data following Cyclin T2 and Cyclin T1 depletion by shRNA in HeLa cells

ABSTRACT: We have characterized gene expression changes in HeLa cells following long term depletion of Cyclin T2 or Cyclin T1 using shRNA HeLa cells were transduced with VSV-G pseudotyped lentiviral vectors expressing shRNA against either Cyclin T2 or Cyclin T1. As a control, cells were transduced with shRNA vector with four nucleotides mismatch in the Cyclin T1 mRNA that has been previously shown to have minimal effects on mRNA expression levels. The vectors have a GFP reporter that can be used to estimate transduction efficiency. Five days post-transduction, cells were harvested and total RNA extracted. Transcriptional profiling was carried out on these RNA samples. Two independent biological replicate experiments were carried out in this analysis and the xpression values normalized by GC-RMA and averaged. The following comparisons were made: MM to Cyclin T2 and MM to Cyclin T1.

ORGANISM(S): Homo sapiens

SUBMITTER: Andrew Rice

PROVIDER: E-GEOD-28339 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Limited redundancy in genes regulated by Cyclin T2 and Cyclin T1.

Ramakrishnan Rajesh R Yu Wendong W Rice Andrew P AP

BMC research notes 20110726

<h4>Background</h4>The elongation phase, like other steps of transcription by RNA Polymerase II, is subject to regulation. The positive transcription elongation factor b (P-TEFb) complex allows for the transition of mRNA synthesis to the productive elongation phase. P-TEFb contains Cdk9 (Cyclin-dependent kinase 9) as its catalytic subunit and is regulated by its Cyclin partners, Cyclin T1 and Cyclin T2. The HIV-1 Tat transactivator protein enhances viral gene expression by exclusively recruiting ...[more]

PMID: 21791050

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