Results 51 to 60 of about 1,323,554 (297)

Enzymatic cleavage of RNA by RNA

Bioscience Reports, 1990
The discovery and characterization of the catalytic RNA subunit of the enzyme ribonuclease P of Escherichia coli is described.
openaire   +1 more source

Transcriptional termination enhances protein expression in human cells [PDF]

, 2009
Transcriptional termination of mammalian RNA polymerase II (Pol II) requires a poly(A) (pA) signal and, often, a downstream terminator sequence. Termination is triggered following recognition of the pA signal by Pol II and subsequent pre-mRNA cleavage ...
Proudfoot, Nicholas J, West, Steven
core   +1 more source

Structure of the Complete RNA Polymerase II Elongation Complex and its Interaction with the Elongation Factor TFIIS [PDF]

, 2005
This thesis describes crystal structures of complete, 12-subunit yeast RNA polymerase II (Pol II) in complex with a synthetic transcription bubble and product RNA, with an NTP substrate analogue, and in complex with the transcription elongation factor ...
Kettenberger, Hubert
core   +1 more source

Kinetics of Pre-mRNA 3’ End Cleavage [PDF]

3’ end cleavage and polyadenylation are required steps in pre-mRNA maturation. The rate at which 3’ end cleavage occurs can determine the temporal availability of mRNA for subsequent function throughout the cell and is likely tightly regulated.
Torres Ulloa, Leslie
core   +1 more source

Biochemical characterization and three-dimensional structure analysis of the yeast cleavage and polyadenylation factor CPF [PDF]

, 2008
In eukaryotes, protein-encoding genes are transcribed in the nucleus by RNA polymerase II (RNAP II). Before the gene transcript (pre-mRNA) is transported to the cytoplasm and can function in translation, it has to undergo three specific maturation ...
Paguet, Bertrand
core   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Topoisomerase IIα promotes activation of RNA polymerase I transcription by facilitating pre-initiation complex formation [PDF]

, 2013
Type II DNA topoisomerases catalyse DNA double-strand cleavage, passage and re-ligation to effect topological changes. There is considerable interest in elucidating topoisomerase II roles, particularly as these proteins are targets for anti-cancer drugs.
Porter, Andrew C. G., Panov, Konstantin I; id_orcid, Zomerdijk, Joost C.B.M., Russell, J., Miller, G. (Gail), Zomerdijk, Joost C B M, Porter, A.C., Porter, Andrew C G, Volkov, A., Panov, K.I., Panov, Konstantin I., Russell, J. (Jackie), Panova, T., Zomerdijk, J.C., Miller, Gail, Porter, Andrew C.G., Miller, G., Panova, Tatiana, Russell, Jackie, Ray, S., Ray, Swagat, Volkov, Arsen, Zomerdijk, Joost C. B. M.   +22 more
core   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Ligand-Induced Trigger RNA Cleavage Enables Programmable Gene Expression Regulation via Strand Displacement in Prokaryotic and Eukaryotic Cells

Frontiers in Bioscience-Landmark
Background: Synthetic RNA circuits offer powerful tools for reprogramming cellular behavior, but constructing ligand-responsive RNA switches that function reliably inside living cells remains challenging.
Chenxi Zhang, Huiye Feng, Liting Li, Jiao Lin, Liang Xu, Jiayi Zhu, Yan Liu   +6 more
doaj   +1 more source

CFIm25 in Solid Tumors: Current Research Progress

Technology in Cancer Research & Treatment, 2020
Cleavage factor I m25 is a newly discovered solid tumor-related gene, however, its precise role in cancer pathogenesis has not yet been characterized.
Xiaojie Sun MD, PhD, Ji Li MD, PhD, Xun Sun MMed, Wanqi Liu MD, PhD, Xiangwei Meng MD, PhD   +4 more
doaj   +1 more source