Results 91 to 100 of about 821,958 (335)

Computational Investigations on Polymerase Actions in Gene Transcription and Replication Combining Physical Modeling and Atomistic Simulations

, 2015
Polymerases are protein enzymes that move along nucleic acid chains and catalyze template-based polymerization reactions during gene transcription and replication.
Yu, Jin
core   +1 more source

In vivo analysis of NHPX reveals a novel nucleolar localization pathway involving a transient accumulation in splicing speckles [PDF]

, 2002
The NHPX protein is a nucleolar factor that binds directly to a conserved RNA target sequence found in nucleolar box C/D snoRNAs and in U4 snRNA. Using enhanced yellow fluorescent protein (EYFP)– and enhanced cyan fluorescent protein–NHPX fusions, we ...
Lamond, Angus I., Leung, Anthony K. L.
core   +5 more sources

Transient pausing by RNA polymerase II [PDF]

Proceedings of the National Academy of Sciences, 2018
RNA polymerase II (Pol II) elongation control is utilized during transcription of most metazoan genes (1). Polymerases that successfully initiate must first break contacts with initiation factors and then interact with elongation factors including the DRB sensitivity-inducing factor (DSIF) and the negative elongation factor (NELF).
openaire   +2 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Survivin and Aurora Kinase A control cell fate decisions during mitosis

Molecular Oncology, EarlyView.
Aurora A interacts with survivin during mitosis and regulates its centromeric role. Loss of Aurora A activity mislocalises survivin, the CPC and BubR1, leading to disruption of the spindle checkpoint and triggering premature mitotic exit, which we refer to as ‘mitotic slippage’.
Hana Abdelkabir, Shalitha Wickrama Arachchige, Sally P. Wheatley   +2 more
wiley   +1 more source

Microprocessor Recruitment to Elongating RNA Polymerase II Is Required for Differential Expression of MicroRNAs

Cell Reports, 2017
The cellular abundance of mature microRNAs (miRNAs) is dictated by the efficiency of nuclear processing of primary miRNA transcripts (pri-miRNAs) into pre-miRNA intermediates.
Victoria A. Church, Sigal Pressman, Mamiko Isaji, Mary Truscott, Nihal Terzi Cizmecioglu, Stephen Buratowski, Maxim V. Frolov, Richard W. Carthew   +7 more
doaj   +1 more source

Schizosaccharomyces pombe Pol II transcription elongation factor ELL functions as part of a rudimentary super elongation complex [PDF]

, 2018
ELL family transcription factors activate the overall rate of RNA polymerase II (Pol II) transcription elongation by binding directly to Pol II and suppressing its tendency to pause.
Alonso-Nunez, Bahler, Bahler, Banks, Buchan, Cairns, Charles AS Banks, Chou, Christopher W Seidel, Coudreuse, Dana M Gibbon, Elmendorf, Florens, Garg, He, He, Joan W Conaway, Kim, Kimura, Kimura, Kitts, Kong, Langmead, Laurence A Florens, Li, Lin, Luo, Luo, Michael P Washburn, Miller, Monahan, Nimisha Sharma, Oliva, Preeti Dabas, Quinlan, Robinson, Ronald C Conaway, Rustici, Shilatifard, Shilatifard, Simone, Simone, Sneha Gopalan, Sobhian, Suarez, Szklarczyk, Tabb, Takahashi, Thorvaldsdottir, Tsai, Ward, Washburn, Ying Zhang, Yokoyama, Zhang   +54 more
core   +1 more source

Inhibition of CDK12 elevates cancer cell dependence on P-TEFb by stimulation of RNA polymerase II pause release [PDF]

, 2023
Zhijia Wang, Samu V. Himanen, Heidi M. Haikala, Caroline C. Friedel, Anniina Vihervaara, Matjaž Barborič   +5 more
openalex   +1 more source

CDK11 inhibition induces cytoplasmic p21WAF1 splice variant by p53 stabilisation and SF3B1 inactivation

Molecular Oncology, EarlyView.
CDK11 inhibition stabilises the tumour suppressor p53 and triggers the production of an alternative p21WAF1 splice variant p21L, through the inactivation of the spliceosomal protein SF3B1. Unlike the canonical p21WAF1 protein, p21L is localised in the cytoplasm and has reduced cell cycle‐blocking activity.
Radovan Krejcir, Lukasz Arcimowicz, Lucia Martinkova, Vaclav Hrabal, Filip Zavadil Kokas, Tomas Henek, Martina Kucerikova, Ondrej Bonczek, Pavlina Zatloukalova, Lenka Hernychova, Philip J. Coates, Borivoj Vojtesek, David P. Lane   +12 more
wiley   +1 more source

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

eLife, 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