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The 40S ribosomal subunit recycling complex modulates mitochondrial dynamics and endoplasmic reticulum - mitochondria tethering at mitochondrial fission/fusion hotspots.
Nat Commun
January 2025
Department of Biological Sciences, Dedman College of Humanities and Sciences, Southern Methodist University, Dallas, TX, 75275, USA.
The 40S ribosomal subunit recycling pathway is an integral link in the cellular quality control network, occurring after translational errors have been corrected by the ribosome-associated quality control (RQC) machinery. Despite our understanding of its role, the impact of translation quality control on cellular metabolism remains poorly understood. Here, we reveal a conserved role of the 40S ribosomal subunit recycling (USP10-G3BP1) complex in regulating mitochondrial dynamics and function.
View Article and Find Full Text PDFRegulation of gene expression helps determine various phenotypes in most cellular life forms. It is orchestrated at different levels and at the point of transcription initiation by transcription factors (TFs). TFs bind to DNA through domains that are evolutionarily related, by shared membership of the same superfamilies (TF-SFs), to those found in other nucleic acid binding and protein-binding functions (nTFs for non-TFs).
View Article and Find Full Text PDFEngineering thermostable fluorescent DNA aptamer for the isothermal amplification of nucleic acids.
Biosens Bioelectron
January 2025
Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, China. Electronic address:
Isothermal amplification-based nucleic acid detection technologies have become rapid and efficient tools for molecular diagnostics. Sequence-specific monitoring methods are crucial for isothermal amplification, as they help identify the occurrence of extended primer dimers, which can lead to false positive results. Fluorescent aptamers are promising tools for real-time monitoring of isothermal amplification but are inherently limited by thermostability.
View Article and Find Full Text PDFVirtual screening of potential inhibitors of the ATPase site in Acinetobacter baumannii DNA Gyrase.
Comput Biol Med
January 2025
Laboratorio de Fisicoquímica Analítica, Unidad de Investigación Multidisciplinaria, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, Estado de México, 54714, Mexico. Electronic address:
Bacterial resistance is a global public health problem because of the ineffectiveness of conventional antibiotics against super pathogens. To counter this situation, the search for or design of new molecules is essential to inhibit the key proteins involved in several stages of bacterial infection. One of these key proteins is DNA gyrase, which is responsible for packaging and unfolding of DNA chains during replication.
View Article and Find Full Text PDFFluctuations in circulating cell-free mitochondrial and nuclear DNA copy numbers in blood plasma after anti-tuberculosis drug intake in patients with drug-susceptible tuberculosis.
Tuberculosis (Edinb)
January 2025
Latvian Biomedical Research and Study Centre, Ratsupites street 1, k-1, Riga, LV-1067, Latvia; Riga Stradiņš University, Pharmacogenetic and Precision Medicine Laboratory, Konsula street 21, Riga, LV-1007, Latvia. Electronic address:
Biomarker research characterising the effect of anti-tuberculosis (TB) chemotherapy on systemic body response is still limited. In this study, we aimed to investigate fluctuations in circulating cell-free mitochondrial DNA (ccf-mtDNA) and circulating cell-free nuclear DNA (ccf-nDNA) copy number (CN) in blood plasma of patients with drug-susceptible TB (DS-TB) and to decipher factors related to these fluctuations. The results showed considerable changes in ccf-mtDNA CN in plasma samples before drug intake and 2 and 6 h afterwards, with high inter patient variability at each time point.
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