Results 101 to 110 of about 5,147 (230)

Calcium binding to a remote site can replace magnesium as cofactor for mitochondrial Hsp90 (TRAP1) ATPase activity. [PDF]

, 2018
The Hsp90 molecular chaperones are ATP-dependent enzymes that maintain protein homeostasis and regulate many essential cellular processes. Higher eukaryotes have organelle-specific Hsp90 paralogs that are adapted to each subcellular environment.
Agard, David A, Elnatan, Daniel
core  

Electron Transfer Precedes ATP Hydrolysis during Nitrogenase Catalysis [PDF]

, 2013
The biological reduction of N2 to NH3 catalyzed by Mo-dependent nitrogenase requires at least eight rounds of a complex cycle of events associated with ATP-driven electron transfer (ET) from the Fe protein to the catalytic MoFe protein, with each ET ...
Antony, Edwin, Danyal, Karamatullah, Dean, Dennis R., Duval, Simon, Hoffman, Brian M., Lytle, Anna K., Seefeldt, Lance C., Shaw, Sudipta   +7 more
core   +2 more sources

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

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

Transgenesis of mammalian PABP reveals mRNA polyadenylation as a general stress response mechanism in bacteria

iScience, 2021
Summary: In eukaryotes, mRNA 3′-polyadenylation triggers poly(A) binding protein (PABP) recruitment and stabilization. In a stark contrast, polyadenylation marks mRNAs for degradation in bacteria.
Nimmy Francis, Rakesh S. Laishram
doaj   +1 more source

A functional RNase P protein subunit of bacterial origin in some eukaryotes [PDF]

, 2011
RNase P catalyzes 5′-maturation of tRNAs. While bacterial RNase P comprises an RNA catalyst and a protein cofactor, the eukaryotic (nuclear) variant contains an RNA and up to ten proteins, all unrelated to the bacterial protein.
Bernal Bayard, Pilar, Gopalan, Venkat, Lai, Lien B., Lai, Stella M., Mohannath, Gireesha, Vioque Peña, Agustín   +5 more
core   +1 more source

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

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

Quick change: post-transcriptional regulation in Pseudomonas [PDF]

, 2017
Pseudomonas species have evolved dynamic and intricate regulatory networks to fine-tune gene expression, with complex regulation occurring at every stage in the processing of genetic information.
Afonyushkin, Agalarov, Andrade, Arce-Rodriguez, Baker, Barquist, Berghoff, Bhagirath, Boudry, Brencic, Brencic, Broder, Bubunenko, Cech, Chambers, Chambonnier, Chatterjee, Coggan, Desnoyers, Duss, Fang, Fernandez, Fields, Gao, Goodman, Goodman, Heurlier, Holmqvist, Holmqvist, Hsu, Ingolia, Irie, Jacob G. Malone, Jean-Pierre, Jorgensen, Jorgensen, Kang, Kong, Lapouge, Lin, Link, Little, Lu, Lucia Grenga, Maki, Melamed, Meyer, Mikulecky, Miller, Moll, Moller, Morita, Moscoso, Mulcahy, Nesterchuk, Petrova, Reimmann, Richard H. Little, Schubert, Schulmeyer, Sittka A, Sobrero, Sonnleitner, Sonnleitner, Sonnleitner E, Takeuchi, Thomason, Unwin, Valentin-Hansen, Van Assche, Ventre, Vogel, Wang, Wang, Wei, Zhang, Zhang   +76 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