Results 21 to 30 of about 14,217 (304)

CATALYTIC PROPERTIES OF THE EUKARYOTIC EXOSOME [PDF]

open access: yes, 2010
The eukaryotic exosome complex is built around the backbone of a 9‑subunit ring similar to phosporolytic ribonucleases such as RNase PH and polynucleotide phosphorylase (PNPase).
María Eugenia Gas López   +13 more
core   +1 more source

Two acid RNases from Dactylis glomerata seeds. Purification, properties and effect of polyamines and lectins on their activity

open access: yesActa Societatis Botanicorum Poloniae, 2014
Two glycoproteidic acid RNases (RNase I and RNase II) were obtained and purified from the seeds of Dactylis glomerata by extraction with acetate buffer, fractionation with ammonium sulfate, ion-exchange chromatography on DEAE-cellulose, DEAE-Sphadex ...
Janina Wiśniowska   +1 more
doaj   +1 more source

“Life is short, and art is long”: RNA degradation in cyanobacteria and model bacteria

open access: yesmLife, 2022
RNA turnover plays critical roles in the regulation of gene expression and allows cells to respond rapidly to environmental changes. In bacteria, the mechanisms of RNA turnover have been extensively studied in the models Escherichia coli and Bacillus ...
Ju‐Yuan Zhang   +2 more
doaj   +1 more source

Surveillance of Tumour Development: The Relationship Between Tumour-Associated RNAs and Ribonucleases

open access: yesFrontiers in Pharmacology, 2019
Tumour progression is accompanied by rapid cell proliferation, loss of differentiation, the reprogramming of energy metabolism, loss of adhesion, escape of immune surveillance, induction of angiogenesis, and metastasis.
Nadezhda Mironova, Valentin Vlassov
doaj   +1 more source

Hirsutellin A: A Paradigmatic Example of the Insecticidal Function of Fungal Ribotoxins

open access: yesInsects, 2013
The fungal pathogen Hirsutella thompsonii produces an insecticidal protein named hirsutellin A (HtA), which has been described to be toxic to several species of mites, insect larvae, and cells.
Álvaro Martínez del Pozo   +6 more
doaj   +1 more source

Streptomyces RNases – Function and impact on antibiotic synthesis

open access: yesFrontiers in Microbiology, 2023
Streptomyces are soil dwelling bacteria that are notable for their ability to sporulate and to produce antibiotics and other secondary metabolites. Antibiotic biosynthesis is controlled by a variety of complex regulatory networks, involving activators ...
George H. Jones
doaj   +1 more source

The role of RNA regulators, quorum sensing and c‐di‐GMP in bacterial biofilm formation

open access: yesFEBS Open Bio, 2023
Biofilms provide an ecological advantage against many environmental stressors, such as pH and temperature, making it the most common life‐cycle stage for many bacteria.
Manuel Condinho   +5 more
doaj   +1 more source

The Immunomodulatory and Antimicrobial Properties of the Vertebrate Ribonuclease A Superfamily

open access: yesVaccines, 2018
The Ribonuclease A Superfamily is composed of cationic peptides that are secreted by immune cells and epithelial tissues. Although their physiological roles are unclear, several members of the vertebrate Ribonuclease A Superfamily demonstrate ...
Laura Schwartz   +3 more
doaj   +1 more source

Biological Activities of Secretory RNases: Focus on Their Oligomerization to Design Antitumor Drugs

open access: yesFrontiers in Immunology, 2019
Ribonucleases (RNases) are a large number of enzymes gathered into different bacterial or eukaryotic superfamilies. Bovine pancreatic RNase A, bovine seminal BS-RNase, human pancreatic RNase 1, angiogenin (RNase 5), and amphibian onconase belong to the ...
Giovanni Gotte, Marta Menegazzi
doaj   +1 more source

Magnetite Nanoparticles Functionalized with RNases against Intracellular Infection of Pseudomonas aeruginosa

open access: yesPharmaceutics, 2020
Current treatments against bacterial infections have severe limitations, mainly due to the emergence of resistance to conventional antibiotics. In the specific case of Pseudomonas aeruginosa strains, they have shown a number of resistance mechanisms to ...
Nathaly Rangel-Muñoz   +8 more
doaj   +1 more source

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