Results 71 to 80 of about 253,526 (264)

Inhibition of HIV-1 Replication and Dimerization Interference by Dual Inhibitory RNAs

Molecules, 2010
The 5’-untranslated region (5’UTR) of the HIV-1 RNA is an attractive target for engineered ribozymes due to its high sequence and structural conservation.
Elena Puerta-Fernández, Alfredo Berzal-Herranz, José A. Reyes-Darias, Francisco J. Sánchez-Luque   +3 more
doaj   +1 more source

High-throughput mutagenesis reveals unique structural features of human ADAR1

Nature Communications, 2020
Human ADAR proteins are responsible for RNA editing, conversion of adenosine to inosine in double-stranded RNA. Here the authors report a previously unknown zinc ion-binding site in the catalytic domain of human ADAR1 using high throughput mutagenesis ...
SeHee Park, Erin E. Doherty, Yixuan Xie, Anil K. Padyana, Fang Fang, Yue Zhang, Agya Karki, Carlito B. Lebrilla, Justin B. Siegel, Peter A. Beal   +9 more
doaj   +1 more source

Treatment with KCL‐286, a first‐in‐class retinoic acid receptor‐β (RARβ) agonist, ameliorates neuronal DNA damage and inflammation in a mouse model of Alzheimer's disease

FEBS Open Bio, EarlyView.
Repair of neuronal DNA damage in Alzheimer's disease by KCL‐286. (A) Amyloid‐β oligomers and plaques impair neuronal DNA repair pathways, leading to DNA double‐strand breaks and glial activation. (B) KCL‐286 activates RARβ/RXR signalling via retinoic acid response elements (RAREs), associated with increased BRCA1 expression, enhanced DNA repair and ...
Natasha Hill, Hassan Yousef Othman AlMuallim, Elouisa Maddock, Carl Hobbs, Earl Clarke, Maria B. Goncalves, Jonathan P. T. Corcoran   +6 more
wiley   +1 more source

Crystal structures and snapshots along Tpt1-catalyzed phosphate transfer from nucleic acid to NAD+

Nature Communications
Tpt1/TRPT1/KptA family proteins are evolutionarily conserved in all three domains of life. In fungi and plants, Tpt1 transfers 2’-PO4 2- from tRNA splice junction to NAD+, which is the final step of tRNA maturation and is critical for the function of ...
Chulei Cao, Jie Yang, Weizhen Zhang, Jiaqin Chen, Yanqing Gao, Yuqi Yao, Yixi Zhang, Huili Li, Linxi Li, Zhaorong Luo, Chenxi Wang, Guangli Tang, Ruixue Cui, Hehua Liu, Qiyao Wang, Zhen Huang, Jinbiao Ma, Jianhua Gan   +17 more
doaj   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Modular Architecture of Bacterial RNase P Ribozymes as a Structural Platform for RNA Nanostructure Design

CHIMIA, 2018
Ribonuclease P (RNase P) is a class of enzymes involved in the processing of precursor tRNAs to remove their 5'-leader sequences. Ribonuclease P enzymes are classified into two completely distinct classes, i.e.
Yuri Nozawa, Megumi Hagihara, Shigeyoshi Matsumura, Yoshiya Ikawa   +3 more
doaj   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

FEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh, Kamalika Mukherjee, Suvendra N. Bhattacharyya   +2 more
wiley   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

ALDOA Promotes Glycolysis and NLRP3/GSDMD Pyroptosis to Accelerate ALS Progression

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Amyotrophic lateral sclerosis (ALS) is characterized by progressive motor neuron degeneration. Glycolytic dysregulation is implicated in disease progression, yet the underlying mechanisms remain unclear. This study investigates how Aldolase A (ALDOA) drives ALS progression through glycolysis‐mediated motor neuron pyroptosis.
Kaixin Yan, Yan Jiang, Yuxuan Yong, Tianshuo Zhang, Niannian Zhang, Qianqian Zeng, Xue Gong, Li Meng, Fangfang Bi, Yongmin Liu   +9 more
wiley   +1 more source

Specific catalytically impaired DDX3X mutants form sexually dimorphic hollow condensates

Nature Communications
Mutations in the RNA helicase DDX3X, implicated in various cancers and neurodevelopmental disorders, often impair RNA unwinding and translation. However, the mechanisms underlying the impairment and the differential interactions of DDX3X mutants with ...
Michael C. Owens, Hui Shen, Amber Yanas, Maria Saraí Mendoza-Figueroa, Ellen Lavorando, Xiaoyu Wei, Him Shweta, Hsin-Yao Tang, Yale E. Goldman, Kathy Fange Liu   +9 more
doaj   +1 more source