Results 51 to 60 of about 6,571 (231)

Rat liver mitochondrial polynucleotide phosphorylase

open access: yesFEBS Letters, 1971
We have recently isolated, partially purified and demonstrated the specificity of a polynucleotide phosphorylase from crude guinea-pig liver nuclei [ 1,2] The enzyme was associated with membrane lipids and catalysed the phosphorolysis of polyribonucleotides to ribonucleoside diphosphates.
See, Yew Phew, Fitt, P.S.
openaire   +2 more sources

RNase E biomolecular condensates stimulate PNPase activity

open access: yesScientific Reports, 2023
Bacterial Ribonucleoprotein bodies (BR-bodies) play an essential role in organizing RNA degradation via phase separation in the cytoplasm of bacteria. BR-bodies mediate multi-step mRNA decay through the concerted activity of the endoribonuclease RNase E ...
Michael J. Collins   +4 more
doaj   +1 more source

Genome wide association studies for acid phosphatase activity at varying phosphorous levels in Brassica juncea L

open access: yesFrontiers in Plant Science, 2022
Acid phosphatases (Apases) are an important group of enzymes that hydrolyze soil and plant phosphoesters and anhydrides to release Pi (inorganic phosphate) for plant acquisition. Their activity is strongly correlated to the phosphorus use efficiency (PUE)
Priyanka Upadhyay   +7 more
doaj   +1 more source

Extensive in vivo resilience of persistent Salmonella [PDF]

open access: yes, 2012
Chronic infections caused by persistent pathogens represent an important health problem. Here, we establish a simple practical mouse Salmonella infection model for identifying bacterial maintenance functions that are essential for persistency.
Barat, Somedutta   +3 more
core   +7 more sources

A PNPase dependent CRISPR System in Listeria. [PDF]

open access: yesPLoS Genetics, 2014
The human bacterial pathogen Listeria monocytogenes is emerging as a model organism to study RNA-mediated regulation in pathogenic bacteria. A class of non-coding RNAs called CRISPRs (clustered regularly interspaced short palindromic repeats) has been ...
Nina Sesto   +9 more
doaj   +1 more source

Analysis of mRNA Decay Intermediates in Bacillus subtilis 3′ Exoribonuclease and RNA Helicase Mutant Strains

open access: yesmBio, 2022
The Bacillus subtilis genome encodes four 3′ exoribonucleases: polynucleotide phosphorylase (PNPase), RNase R, RNase PH, and YhaM. Previous work showed that PNPase, encoded by the pnpA gene, is the major 3′ exonuclease involved in mRNA turnover; in a ...
Shivani Chhabra   +4 more
doaj   +1 more source

Insights into Xanthomonas axonopodis pv. citri biofilm through proteomics [PDF]

open access: yes, 2013
Background: Xanthomonas axonopodis pv. citri (X. a. pv. citri) causes citrus canker that can result in defoliation and premature fruit drop with significant production losses worldwide. Biofilm formation is an important process in bacterial pathogens and
Garavaglia, Betiana Soledad   +6 more
core   +1 more source

The ribonuclease PNPase is a key regulator of biofilm formation in Listeria monocytogenes and affects invasion of host cells

open access: yesnpj Biofilms and Microbiomes, 2023
Biofilms provide an environment that protects microorganisms from external stresses such as nutrient deprivation, antibiotic treatments, and immune defences, thereby creating favorable conditions for bacterial survival and pathogenesis. Here we show that
Ana Patrícia Quendera   +6 more
doaj   +1 more source

The structure of Rph, an exoribonuclease from Bacillus anthracis, at 1.7 angstrom resolution [PDF]

open access: yes, 2008
Maturation of tRNA precursors into functional tRNA molecules requires trimming of the primary transcript at both the 5' and 3' ends. Cleavage of nucleotides from the 3' stem of tRNA precursors, releasing nucleotide diphosphates, is accomplished in ...
Blagova, Elena V.   +5 more
core   +2 more sources

Genome-Wide Study of mRNA Degradation and Transcript Elongation in Escherichia coli [PDF]

open access: yes, 2015
An essential part of gene expression is the coordination of RNA synthesis and degradation, which occurs in the same cellular compartment in bacteria.
Chen, Huiyi   +3 more
core   +2 more sources

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