Results 121 to 130 of about 516,711 (334)

In vitro Assessment of RNA Polymerase I Activity

open access: yesBio-Protocol, 2017
In eukaryotic cells transcriptional processes are carried out by three different RNA polymerases: RNA polymerase I which specifically transcribes ribosomal RNA (rRNA), RNA polymerase II which transcribes protein-coding genes to yield messenger RNAs ...
Marzia Govoni
doaj   +1 more source

Fungicide Resistance Genetics of Apple Scab fungus Venturia inaequalis [PDF]

open access: yes, 2015
Apple scab, caused by the ascomycete fungus Venturia inaequalis, is considered the most devastating disease on domestic apple crops. Apples are the most important cultivated crop in temperate regions and the United States produced about 4.6 million tons ...
Reddel, Alexis LT
core   +1 more source

Metformin Restores Mitochondrial Function and Neurogenesis in POLG Patient‐Derived Brain Organoids

open access: yesAdvanced Science, EarlyView.
Patient‐derived POLG‐mutant cortical organoids reveal neuronal subtype‐specific mitochondrial and synaptic defects, with dopaminergic neurons most affected. Metformin treatment restores neuronal identity, mitochondrial function, and excitability, increased mtDNA maintenance, and reprogrammed metabolism via TCA and redox pathways.
Zhuoyuan Zhang   +6 more
wiley   +1 more source

CircPVT1 Promotes Lung Metastasis and Tumor Progression in Renal Cell Carcinoma by Encoding the cP104aa Peptide and Targeting EIF4A3

open access: yesAdvanced Science, EarlyView.
This study reveals that circPVT1 promotes the renal cell carcinoma lung metastasis and tumor progression through encoding the cP104aa peptide and directly binds with EIF4A3, which jointly regulates the target gene c‐MYC. Abstract Circular RNA (circRNA) plays a pivotal role in the pathogenesis of renal cell carcinoma (RCC).
Houliang Zhang   +10 more
wiley   +1 more source

Circular RNA PTPN4 Contributes to Blood‐Brain Barrier Disruption during Early Epileptogenesis

open access: yesAdvanced Science, EarlyView.
Epileptic condition induces CircPTPN4 upregulation, which promotes ECE‐1 expression through competitive sequestration of miR‐145a‐5p. The elevated ECE‐1 catalyzes the ET‐1 production, leading to p38/MAPK pathway activation and subsequent downregulation of tight junction protein expression. This cascade results in increased BBB permeability and enhanced
Jiurong Yang   +16 more
wiley   +1 more source

Function of Plant DExD/H-Box RNA Helicases Associated with Ribosomal RNA Biogenesis

open access: yesFrontiers in Plant Science, 2018
Ribosome biogenesis is a highly complex process that requires several cofactors, including DExD/H-box RNA helicases (RHs). RHs are a family of ATPases that rearrange the secondary structures of RNA and thus remodel ribonucleoprotein complexes. DExD/H-box
Yuelin Liu, Ryozo Imai
doaj   +1 more source

Template-directed biopolymerization: tape-copying Turing machines

open access: yes, 2012
DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear ...
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

PALE CRESS binds to plastid RNAs and facilitates the biogenesis of the 50S ribosomal subunit [PDF]

open access: bronze, 2017
Jörg Meurer   +5 more
openalex   +1 more source

PHR‐Mediated Pi Starvation Response Mobile Messenger RNAs Represent Noncoding Transcripts in Recipient Tissues

open access: yesAdvanced Science, EarlyView.
Mobile messenger RNAs (mRNAs) can travel long distances, serving as systemic signals that participate in plant growth and stress acclimation. This work determines that PHR proteins mediate the Pi starvation response (PSR)‐specific long‐distance transport of mRNAs and that these PSR‐specific mobile mRNAs represent noncoding transcripts in recipient ...
Weiguo Dong   +9 more
wiley   +1 more source

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