Results 51 to 60 of about 3,372,915 (384)

TFE and Spt4/5 open and close the RNA polymerase clamp during the transcription cycle [PDF]

open access: yes, 2016
Transcription is an intrinsically dynamic process and requires the coordinated interplay of RNA polymerases (RNAPs) with nucleic acids and transcription factors.
Gietl, Andreas   +5 more
core   +1 more source

Transcription and cancer [PDF]

open access: yesBritish Journal of Cancer, 1991
The normal growth, development and function of an organism requires precise and co-ordinated control of gene expression. A major part of this control is exerted by regulating messenger RNA (mRNA) production and involves complex interactions between an array of transcriptionally active proteins and specific regulatory DNA sequences.
Cox, P, Goding, C
openaire   +4 more sources

IL-2 delivery to CD8+ T cells during infection requires MRTF/SRF-dependent gene expression and cytoskeletal dynamics

open access: yesNature Communications
Paracrine IL-2 signalling drives the CD8 + T cell expansion and differentiation that allow protection against viral infections, but the underlying molecular events are incompletely understood.
Diane Maurice   +5 more
doaj   +1 more source

Protocol for analysis of G2/M DNA synthesis in human cells

open access: yesSTAR Protocols, 2021
Summary: G2/M DNA synthesis (G-MiDS) can be observed in one in five G2/M cells in unperturbed conditions by immunofluorescence microscopy. However, little is known of the genomic sites undergoing G-MiDS.
Jianming Wang, Marco Saponaro
doaj  

Molecular basis for substrate specificity of the Phactr1/PP1 phosphatase holoenzyme

open access: yeseLife, 2020
PPP-family phosphatases such as PP1 have little intrinsic specificity. Cofactors can target PP1 to substrates or subcellular locations, but it remains unclear how they might confer sequence-specificity on PP1.
Roman O Fedoryshchak   +10 more
doaj   +1 more source

Transcription of toll-like receptors 2, 3, 4 and 9, FoxP3 and Th17 cytokines in a susceptible experimental model of canine Leishmania infantum infection [PDF]

open access: yes, 2015
Canine leishmaniosis (CanL) due to Leishmania infantum is a chronic zoonotic systemic disease resulting from complex interactions between protozoa and the canine immune system.
A Ives   +81 more
core   +4 more sources

The dual nature of TDC – bridging dendritic and T cells in immunity

open access: yesFEBS Letters, EarlyView.
TDC are hematopoietic cells combining dendritic and T cell features. They reach secondary lymphoid organs (SLOs) and peripheral organs (liver and lungs) after FLT3‐dependent development in the bone marrow and maturation in the thymus. TDC are activated and enriched in SLOs upon viral infection, suggesting that they might play unique immune roles, since
Maria Nelli, Mirela Kuka
wiley   +1 more source

Structural basis of eukaryotic transcription termination by the Rat1 exonuclease complex

open access: yesNature Communications
The 5´–3´ exoribonuclease Rat1/Xrn2 is responsible for the termination of eukaryotic mRNA transcription by RNAPII. Rat1 forms a complex with its partner proteins, Rai1 and Rtt103, and acts as a “torpedo” to bind transcribing RNAPII and dissociate DNA/RNA
Tatsuo Yanagisawa   +5 more
doaj   +1 more source

Real-time assembly of ribonucleoprotein complexes on nascent RNA transcripts. [PDF]

open access: yes, 2018
Cellular protein-RNA complexes assemble on nascent transcripts, but methods to observe transcription and protein binding in real time and at physiological concentrations are not available.
Duss, Olivier   +5 more
core   +2 more sources

Functional Characteristics of Gene Expression Motifs with Single and Dual Strategies of Regulation [PDF]

open access: yesBiomed. Phys. Eng. Express, 2 , 025009(2016), 2016
Transcriptional regulation by transcription factors and post-transcriptional regulation by microRNAs constitute two major modes of regulation of gene expression. While gene expression motifs incorporating solely transcriptional regulation are well investigated, the dynamics of motifs with dual strategies of regulation, i.e., both transcriptional and ...
arxiv   +1 more source

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