Polynucleotide phosphorylase and RNA helicase CshA cooperate in Bacillus subtilis mRNA decay. [PDF]
RNA Biol, 2021 Polynucleotide phosphorylase (PNPase), a 3ʹ exoribonuclease that degrades RNA in the 3ʹ-to-5ʹ direction, is the major mRNA decay activity in Bacillus subtilis.
Ingle S +5 more
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Polynucleotide phosphorylase is implicated in homologous recombination and DNA repair in Escherichia coli [PDF]
BMC Microbiology, 2017 Background Polynucleotide phosphorylase (PNPase, encoded by pnp) is generally thought of as an enzyme dedicated to RNA metabolism. The pleiotropic effects of PNPase deficiency is imputed to altered processing and turnover of mRNAs and small RNAs, which ...
Thomas Carzaniga +3 more
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Defects in Polynucleotide phosphorylase impairs virulence in Escherichia coli O157:H7 [PDF]
Frontiers in Microbiology, 2015 Polynucleotide phosphorylase (PNPase) is reported to regulate virulence in Salmonella, Yersinia spp. and Campylobacter jejuni, yet its role in Escherichia coli O157:H7 has not been investigated. To gain insights into its roles in E.
Jia eHu, Jia eHu, Meijun eZhu
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Human polynucleotide phosphorylase in mitochondrial RNA metabolism. [PDF]
Biosci RepEver since its discovery more than 70 years ago, the enzyme polynucleotide phosphorylase (PNPase) has been the subject of intensive research that has highlighted its key functional roles.
Bakshi N +3 more
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Polynucleotide phosphorylase regulates multiple virulence factors and the stabilities of small RNAs RsmY/Z in Pseudomonas aeruginosa [PDF]
Frontiers in Microbiology, 2016 Post-transcriptional regulation enables bacteria to quickly response to environmental stresses. Polynucleotide phosphorylase (PNPase), which contains an N-terminal catalytic core and C-terminal RNA binding KH-S1 domains, is involved in RNA processing ...
Ronghao eChen +10 more
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Interaction of Bacillus subtilis Polynucleotide Phosphorylase and RNase Y: STRUCTURAL MAPPING AND EFFECT ON mRNA TURNOVER. [PDF]
J Biol Chem, 2016 Polynucleotide phosphorylase (PNPase), a 3′-to-5′ phosphorolytic exoribonuclease, is thought to be the primary enzyme responsible for turnover of Bacillus subtilis mRNA. The role of PNPase in B.
Salvo E +4 more
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The Protein Interaction of RNA Helicase B (RhlB) and Polynucleotide Phosphorylase (PNPase) Contributes to the Homeostatic Control of Cysteine in Escherichia coli. [PDF]
J Biol Chem, 2015 PNPase, one of the major enzymes with 3′ to 5′ single-stranded RNA degradation and processing activities, can interact with the RNA helicase RhlB independently of RNA degradosome formation in Escherichia coli.
Tseng YT +3 more
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Helicase SUV3, polynucleotide phosphorylase, and mitochondrial polyadenylation polymerase form a transient complex to modulate mitochondrial mRNA polyadenylated tail lengths in response to energetic changes. [PDF]
J Biol Chem, 2014 Background: Helicase SUV3, polynucleotide phosphorylase (PNPase), or mitochondrial poly(A) polymerases (mtPAP) have individual activity in regulating mitochondrial mRNA (mt-mRNA)-polyadenylated (poly(A)) tails.
Wang DD +5 more
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RNase E forms a complex with polynucleotide phosphorylase in cyanobacteria via a cyanobacterial-specific nonapeptide in the noncatalytic region. [PDF]
RNA, 2014 The endoribonuclease RNase E in a range of bacteria has a conserved N-terminal catalytic domain and a less well-conserved C-terminal tail. While the role of the C-terminal tail in the formation of the degradosome, including the interaction with the ...
Zhang JY +6 more
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The exoribonuclease Polynucleotide Phosphorylase influences the virulence and stress responses of yersiniae and many other pathogens [PDF]
Frontiers in Cellular and Infection Microbiology, 2013 Microbes are incessantly challenged by both biotic and abiotic stressors threatening their existence. Therefore, bacterial pathogens must possess mechanisms to successfully subvert host immune defenses as well as overcome the stress associated with host ...
Jason A. Rosenzweig, Ashok K Chopra
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