Results 81 to 90 of about 4,319 (202)

Defective Processing of Cytoplasmic and Chloroplast Ribosomal RNA in the Absence of Arabidopsis DXO1

Plant, Cell &Environment, Volume 48, Issue 6, Page 4227-4244, June 2025.
ABSTRACT Decapping 5′‐3′ exoribonucleases from the DXO/Rai1 family are highly conserved among eukaryotes and exhibit diverse enzymatic activities depending on the organism. The biochemical and structural properties of the plant DXO1 differ from the yeast and animal counterparts, which is reflected in the in vivo functions of this enzyme.
Monika Zakrzewska‐Placzek, Anna Golisz‐Mocydlarz, Aleksandra Kwasnik, Michal Krzyszton, Katarzyna Niedzwiecka, Joanna Kufel   +5 more
wiley   +1 more source

Defects in Polynucleotide phosphorylase impairs virulence in Escherichia coli O157:H7

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
doaj   +1 more source

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

, 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, Ge, Hao, Shiroguchi, Katsuyuki, Xie, Xiaoliang Sunney   +3 more
core   +2 more sources

The RNA processing enzyme polynucleotide phosphorylase negatively controls biofilm formation by repressing poly-N-acetylglucosamine (PNAG) production in Escherichia coli C

BMC Microbiology, 2012
Background Transition from planktonic cells to biofilm is mediated by production of adhesion factors, such as extracellular polysaccharides (EPS), and modulated by complex regulatory networks that, in addition to controlling production of adhesion ...
Carzaniga Thomas, Antoniani Davide, Dehò Gianni, Briani Federica, Landini Paolo   +4 more
doaj   +1 more source

Looping forward: exploring R‐loop processing and therapeutic potential

FEBS Letters, Volume 599, Issue 2, Page 244-266, January 2025.
R‐loops function as both regulators of gene expression, DNA repair, telomere maintenance or chromosome segregation, and as drivers of genome instability. This dual nature of these structures is coordinated by RNA/DNA/chromatin processing factors that safeguard the genome from detrimental R‐loop‐instigated DNA damage or cellular dysfunction ...
Kalliopi Stratigi, Athanasios Siametis, George A. Garinis   +2 more
wiley   +1 more source

Streptomyces natalensis programmed cell death and morphological differentiation are dependent on oxidative stress [PDF]

, 2015
Streptomyces are aerobic Gram-positive bacteria characterized by a complex life cycle that includes hyphae differentiation and spore formation.
Beites, Tiago, Manteca Fernández, Ángel, Mendes, Marta V., Moradas-Ferreira, Pedro, Oliveira, Paulo, Oliveira, Rute, Pires, Silvia D. S., Rioseras de Bustos, Beatriz, Tamagnini, Paula   +8 more
core   +2 more sources

Inductively Coupled Plasma Mass Spectrometry Performance for the Measurement of Key Serum Minerals: A Comparative Study With Standard Quantification Methods

Journal of Clinical Laboratory Analysis, Volume 39, Issue 2, January 2025.
Analysis of real‐world cross‐sectional study data revealed relative errors between the standard method and ICP‐MS for the different minerals tested. Additionally, several outliers were observed exclusively in the ICP‐MS results, likely due to hemolysis or other unidentified factors.
Kosuke Kojo, Tomoko Oguri, Takazo Tanaka, Atsushi Ikeda, Takuya Shimizu, Shunsuke Fujimoto, Ayumi Nakazono, Yoshiyuki Nagumo, Shuya Kandori, Hiromitsu Negoro, Hiroyuki Nishiyama   +10 more
wiley   +1 more source

Mitochondrial sequencing identifies long noncoding RNA features that promote binding to PNPase.

Am J Physiol Cell Physiol
Long noncoding RNAs (lncRNAs) are relatively novel RNAs with increasingly prominent roles in regulating genetic expression, mainly in the nucleus but more recently in regions such as the mitochondrion. This study explores how lncRNAs interact with polynucleotide phosphorylase (PNPase), a protein that regulates RNA import into the mitochondrion ...
Taylor AD, Hathaway QA, Kunovac A, Pinti MV, Newman MS, Cook CC, Cramer ER, Starcovic SA, Winters MT, Westemeier-Rice ES, Fink GK, Durr AJ, Rizwan S, Shepherd DL, Robart AR, Martinez I, Hollander JM.   +16 more
europepmc   +3 more sources

Nuclear Surveillance and Degradation of Hypomodified Initiator tRNA\u3csup\u3eMet\u3c/sup\u3e in \u3cem\u3eS. cerevisiae\u3c/em\u3e [PDF]

, 2004
The tRNA m1A58 methyltransferase is composed of two subunits encoded by the essential genes TRM6 and TRM61 (formerly GCD10 and GCD14). The trm6-504 mutation results in a defective m1A methyltransferase (Mtase) and a temperature-sensitive growth phenotype
Anderson, James T., Hinnebusch, Alan G., Kadaba, Sujatha, Krecic, Annette M., Krueger, Anna, Trice, Tamyra   +5 more
core   +1 more source

Novel resources to investigate leaf plasmodesmata formation in C3 and C4 monocots

The Plant Journal, Volume 120, Issue 5, Page 2207-2225, December 2024.
SUMMARY Plasmodesmata (PD) are nanochannels that facilitate cell‐to‐cell transport in plants. More productive and photosynthetically efficient C4 plants form more PD at the mesophyll (M)‐bundle sheath (BS) interface in their leaves than their less efficient C3 relatives.
Hong Ting Tsang, Diep R. Ganguly, Robert T. Furbank, Susanne von Caemmerer, Florence R. Danila   +4 more
wiley   +1 more source