Post-translational modifications of the histones are centrally involved in the regulation of all DNA-templated processes, including gene transcription, DNA replication, recombination, and repair. These modifications are often dynamic, and their removal is just as important as their addition in proper regulation of cellular functions. Although histone acetylation/deacetylation and histone methylation/demethylation are highly studied, the functions and regulation of histone ubiquitination and deubiquitination are less well understood. This review highlights our current understanding of how histone ubiquitination impacts gene transcription, DNA repair, and cell cycle progression, and stresses the importance of deubiquitinases to normal cellular functions as well as to disease states such as cancer.
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http://dx.doi.org/10.1016/j.febslet.2010.10.042 | DOI Listing |
Planta
January 2025
State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100081, China.
AtbZIP69 overexpression in wheat significantly enhanced drought and low nitrogen tolerance by modulating ABA synthesis, antioxidant activity, nitrogen allocation, and transporter gene expression, boosting yield. In this study, we generated wheat plants with improved low nitrogen (LN) and drought tolerance by introducing AtbZIP69, a gene encoding a basic leucine zipper domain transcription factor, into the wheat cultivar Shi 4056. AtbZIP69 localized to the nucleus and activated transcription.
View Article and Find Full Text PDFAnn Clin Microbiol Antimicrob
January 2025
Department of Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China.
Background: The emergence of colistin resistance in carbapenem-resistant Klebsiella pneumoniae (CRKP) is a significant public health concern, as colistin has been the last resort for treating such infections. This study aimed to investigate the prevalence and molecular characteristics of colistin-resistant CRKP isolates in Central South China.
Methods: CRKP isolates from twelve hospitals in Central South China were screened for colistin resistance using broth microdilution.
Mob DNA
January 2025
Department of Biology, La Sierra University, Riverside, CA, USA.
Background: Messenger RNA 3' untranslated regions (3'UTRs) control many aspects of gene expression and determine where the transcript will terminate. The polyadenylation signal (PAS) AAUAAA (AATAAA in DNA) is a key regulator of transcript termination and this hexamer, or a similar sequence, is very frequently found within 30 bp of 3'UTR ends. Short interspersed element (SINE) retrotransposons are found throughout genomes in high copy numbers.
View Article and Find Full Text PDFCell Signal
January 2025
Institute of Medical Science, Ajou University School of Medicine, Suwon, Gyeonggi 16499, Republic of Korea; Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Gyeonggi 16499, Republic of Korea. Electronic address:
Oxidative stress caused by reactive oxygen species (ROS) and superoxides is linked to various cancer-related biological events. Extracellular superoxide dismutase (SOD3), an antioxidant enzyme that removes superoxides, contributes to redox homeostasis and has the potential to regulate tumorigenesis. Histone deacetylase 6 (HDAC6), a major HDAC isoform responsible for mediating the deacetylation of non-histone protein substrates, also plays a role in cancer progression.
View Article and Find Full Text PDFJ Biotechnol
January 2025
Institute of Molecular Biotechnology (IMBT), BOKU University, Vienna, Austria.
Efficient recombinant protein production requires mammalian stable cell lines or often relies on inefficient transfection processes. Baculoviral transduction of mammalian cells (BacMam) offers cost-effective and robust gene transfer and straightforward scalability. The advantages over conventional approaches are, no need of high biosafety level laboratories, efficient transduction of various cell types and transfer of large transgenes into host cells.
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