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TranscriptomicsCTD tyrosine phosphorylation impairs termination factor recruitment to transcribing RNA polymerase II
ChIP-chip was performed to identify the genomic binding locations for the termination factors Nrd1, and Rtt103, and for RNA polymerase (Pol) II phosphorylated at the tyrosine 1 and threonine 4 position of its C-terminal domain (CTD). In different phases of the transcription cycle, Pol II recruits di...
ORGANISM(S): Saccharomyces cerevisiae 
2012-06-29 | E-MTAB-1060 | biostudies-arrayexpress
GenomicsThreonine-4 of Mammalian RNA Polymerase II CTD is Targeted by Polo-like Kinase-3 and Required for Transcriptional Elongation
Eukaryotic RNA polymerase II (Pol II) has evolved an array of heptad repeats with the consensus sequence Tyr1-Ser2-Pro3-Thr4-Ser5-Pro6-Ser7 at the carboxy-terminal domain (CTD) of the large subunit (Rpb1). Differential phosphorylation of Ser2, Ser5, and Ser7 in the 5M-bM-^@M-^Y and 3M-bM-^@M-^Y regi...
ORGANISM(S): Homo sapiens 
2012-06-04 | E-GEOD-37519 | biostudies-arrayexpress
TranscriptomicsTranscription Initiation Platforms and GTF recruitment at tissue-specific enhancers and promoters
Recent works have shown that RNA Polymerase (Pol) II can be recruited to, and transcribe, distal regulatory regions. Here, we analyzed transcription initiation and elongation through genome-wide localization of Pol II, General Transcription Factors (GTFs) and active chromatin in developing T-cells. ...
ORGANISM(S): Mus musculus 
2011-05-20 | E-GEOD-29362 | biostudies-arrayexpress
TranscriptomicsEstrogen-dependent gene expression in human breast cancer cells relies upon proteosome-dependent monoubiquitination of histone H2B
The estrogen receptor-alpha (ERα) determines breast cancer cell phenotype and is a prognostic indicator. A better understanding of the mechanisms controlling ERα function may uncover improved strategies for the treatment of breast cancer. Proteasome inhibition was previously reported to regulate e...
ORGANISM(S): Homo sapiens 
2011-11-22 | E-GEOD-31118 | biostudies-arrayexpress
TranscriptomicsProteasome inhibition blocks estrogen-dependent gene transcription by decreasing histone H2B monoubiquitination in human breast cancer cells
The estrogen receptor-alpha (ERα) determines breast cancer cell phenotype and is a prognostic indicator. A better understanding of the mechanisms controlling ERα function may uncover improved strategies for the treatment of breast cancer. Proteasome inhibition was previously reported to regulate est...
ORGANISM(S): Homo sapiens 
2011-11-22 | E-GEOD-30931 | biostudies-arrayexpress
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