Results 101 to 110 of about 946,604 (388)

DSIF, a novel transcription elongation factor that regulates RNA polymerase II processivity, is composed of human Spt4 and Spt5 homologs.

open access: yesGenes & Development, 1998
We report the identification of a transcription elongation factor from HeLa cell nuclear extracts that causes pausing of RNA polymerase II (Pol II) in conjunction with the transcription inhibitor 5,6-dichloro-1-beta-D-ribofuranosylbenzimidazole (DRB ...
T. Wada   +11 more
semanticscholar   +1 more source

Integrative analysis of circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients: a comprehensive approach

open access: yesMolecular Oncology, EarlyView.
This study simultaneously investigated circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients. The elevated expression of JUNB and CXCR4 in CTCs was a poor prognostic factor for SCLC patients, whereas exosomal overexpression of these biomarkers revealed a high discrimination ability of patients from healthy individuals,
Dimitrios Papakonstantinou   +13 more
wiley   +1 more source

Triiodothyronine (T3) upregulates the expression of proto-oncogene TGFA independent of MAPK/ERK pathway activation in the human breast adenocarcinoma cell line, MCF7

open access: yesArchives of Endocrinology and Metabolism, 2019
Objective: To verify the physiological action of triiodothyronine T3 on the expression of transforming growth factor α (TGFA) mRNA in MCF7 cells by inhibition of RNA Polymerase II and the MAPK/ERK pathway Materials and methods: The cell line was treated
Tabata M. Silva   +11 more
doaj   +1 more source

Non-processive transcription of poly[d(A—T)] by wheat germ RNA polymerase II [PDF]

open access: yes, 1982
RNA product distribution obtained during the transcription of poly[d(A—T)] by wheat germ RNA polymerase IIA under various experimental conditions was analyzed by high resolution polyacrylamide gel electrophoresis.
Durand, Robert   +3 more
core   +1 more source

A Ribonucleolytic Rat Torpedoes RNA Polymerase II [PDF]

open access: yesCell, 2004
Three recent papers reveal a fascinating link between pol II termination and ribonucleolytic decay of the nascent transcript by a 5'-3' exonuclease (yeast Rat1 and human Xrn2). The exonuclease travels with pol II and gains access to the nascent RNA after endonucleolytic cleavage at the poly(A) site or at a second cotranscriptional cleavage site (CoTC).
David Bentley, Weifei Luo
openaire   +3 more sources

MET variants with activating N‐lobe mutations identified in hereditary papillary renal cell carcinomas still require ligand stimulation

open access: yesMolecular Oncology, EarlyView.
MET variants in the N‐lobe of the kinase domain, found in hereditary papillary renal cell carcinoma, require ligand stimulation to promote cell transformation, in contrast to other RTK variants. This suggests that HGF expression in the microenvironment is important for tumor growth in such patients. Their sensitivity to MET inhibitors opens the way for
Célia Guérin   +14 more
wiley   +1 more source

THOC5 complexes with DDX5, DDX17, and CDK12 to regulate R loop structures and transcription elongation rate

open access: yesiScience, 2023
Summary: THOC5, a member of the THO complex, is essential for the 3′processing of some inducible genes, the export of a subset of mRNAs and stem cell survival.
Mareike Polenkowski   +10 more
doaj  

A simple method for generating high-resolution maps of genome-wide protein binding

open access: yeseLife, 2015
Chromatin immunoprecipitation (ChIP) and its derivatives are the main techniques used to determine transcription factor binding sites. However, conventional ChIP with sequencing (ChIP-seq) has problems with poor resolution, and newer techniques require ...
Peter J Skene, Steven Henikoff
doaj   +1 more source

Structure and Function of RNA Polymerase II

open access: yes, 2004
Publisher Summary This chapter discusses the structure and function of RNA polymerase II. High-resolution structural studies of polymerase II (Pol II) by x-ray crystallography required large amounts of pure protein that cannot be obtained by over-expression because of the complexity of the enzyme.
openaire   +4 more sources

Transcriptome‐wide analysis of circRNA and RBP profiles and their molecular relevance for GBM

open access: yesMolecular Oncology, EarlyView.
CircRNAs are differentially expressed in glioblastoma primary tumors and might serve as therapeutic targets and diagnostic markers. The investigation of circRNA and RNA‐binding proteins (RBPs) interactions shows that distinct RBPs play a role in circRNA biogenesis and function.
Julia Latowska‐Łysiak   +14 more
wiley   +1 more source

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