Results 91 to 100 of about 5,581 (192)

Pyrimidine-specific cleavage by an endoribonuclease of Saccharomyces cerevisiae [PDF]

open access: yesJournal of Bacteriology, 1985
An endoribonuclease with pyrimidine cleavage site specificity was isolated from Saccharomyces cerevisiae. The enzyme had a pH optimum of 6 to 7 and did not require a divalent cation. It was inhibited by 5 X 10(-5) M ethidium bromide, although it appeared to be single strand specific.
openaire   +2 more sources

RNA Recognition and Cleavage by the SARS Coronavirus Endoribonuclease

open access: yesJournal of Molecular Biology, 2006
The emerging disease SARS is caused by a novel coronavirus that encodes several unusual RNA-processing enzymes, including non-structural protein 15 (Nsp15), a hexameric endoribonuclease that preferentially cleaves at uridine residues. How Nsp15 recognizes and cleaves RNA is not well understood and is the subject of this study.
Bhardwaj, Kanchan   +4 more
openaire   +2 more sources

Role of RNase MRP in Viral RNA Degradation and RNA Recombination

open access: yes, 2011
RNA degradation, together with RNA synthesis, controls the steady-state level of viral RNAs in infected cells. The endoribonucleolytic cleavage of viral RNA is important not only for viral RNA degradation but for RNA recombination as well, due to the ...
Mark E. Schmitt   +3 more
core   +1 more source

A Non-Stem-Loop CRISPR RNA Is Processed by Dual Binding Cas6 [PDF]

open access: yes, 2016
A subclass of recently discovered CRISPR repeat RNA in bacteria contains minimally recognizable structural features that facilitate an unknown mechanism of recognition and processing by the Cas6 family of endoribonucleases.
Henning Urlaub   +12 more
core   +1 more source

The Roles of Rnt1 and Putative Endoribonucleases in Eukaryotic mRNA Degradation

open access: yes
Endoribonucleases initiate degradation by cleaving RNAs internally. Mutations in these enzymes have been shown to cause diseases such as cancer, developmental disorders, and neurodegenerative diseases. Yet, eukaryotic endoribonucleases have not been well
Notice-Sarpaning, Lee-Ann
core   +1 more source

Towards new antituberculotic targets: biochemical characterisation of mycobacterial RNase E/G

open access: yesEuropean Respiratory Review, 2008
The World Health Organization estimates that each year 3 million people die from tuberculosis (TB) and 8 million people become infected. No new anti-TB drugs have been introduced in the past 30 years, even though their development becomes increasingly ...
Agnes Csanadi   +5 more
doaj  

Ribonucleases in bacterial toxin–antitoxin systems

open access: yes, 2013
Toxin-antitoxin (TA) systems are widespread in bacteria and archaea and play important roles in a diverse range of cellular activities. TA systems have been broadly classified into 5 types and the targets of the toxins are diverse, but the most ...
Cook, Gregory M.   +8 more
core   +1 more source

Post-transcriptional control of virulence gene expression in Staphylococcus aureus

open access: yes, 2019
International audienceOpportunistic pathogens have to be ready to change life-style whenever the occasion arises, and therefore need to keep tight control over the expression of their virulence factors.
Alexandre Le Scornet   +3 more
core   +1 more source

VapC20 of Mycobacterium tuberculosis cleaves the Sarcin–Ricin loop of 23S rRNA

open access: yes, 2013
The highly persistent and often lethal human pathogen, Mycobacterium tuberculosis contains at least 88 toxin–antitoxin genes. More than half of these encode VapC PIN domain endoribonucleases that inhibit cell growth by unknown mechanisms.
Gerdes, Kenn   +3 more
core   +1 more source

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