Aspartokinases have been isolated from the cell-free extracts of Plectonema boryanum, Anabaena variabilis and Synechococcus cedrorum. Their physico-chemical characteristics and peculiarities of retroregulation by amino acids were studied. It has been shown that in P. boryanum cells aspartokinase reaction is catalyzed by only one enzyme, which is similar to the previously described bacterial origin enzymes. Three izoenzymes, which differ in their main properties and amino acids-effectors, have been founded in the cells of A. variabilis. One enzyme with aspartokinase activity, which differs from other cyanobacteria enzymes in some physico-chemical features has been founded in the cells of S. cedrorum.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
KLF5 loss sensitizes cells to ATR inhibition and is synthetic lethal with ARID1A deficiency.
Nat Commun
January 2025
Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK.
ATR plays key roles in cellular responses to DNA damage and replication stress, a pervasive feature of cancer cells. ATR inhibitors (ATRi) are in clinical development for treating various cancers, including those with high replication stress, such as is elicited by ARID1A deficiency, but the cellular mechanisms that determine ATRi efficacy in such backgrounds are unclear. Here, we have conducted unbiased genome-scale CRISPR screens in ARID1A-deficient and proficient cells treated with ATRi.
View Article and Find Full Text PDFEpigenetic Mechanisms in Osteoporosis: Exploring the Power of mA RNA Modification.
J Cell Mol Med
January 2025
Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, China.
Osteoporosis, recognised as a metabolic disorder, has emerged as a significant burden on global health. Although available treatments have made considerable advancements, they remain inadequately addressed. In recent years, the role of epigenetic mechanisms in skeletal disorders has garnered substantial attention, particularly concerning mA RNA modification.
View Article and Find Full Text PDFEditorial: The Human Cell Atlas. What Is It and Where Could It Take Us?
Med Sci Monit
January 2025
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA.
The Human Cell Atlas (HCA) Consortium was founded in 2016 as an open global initiative to map each cell type in the human body and create a three-dimensional (3-D) atlas. As of December 2024, 18 Biological Networks are assembling the first draft of the HCA from organs, tissues, and organ systems, including the heart, lung, liver, and immune system. Although the completed first version of the HCA should be released within a year, possibly two, the HCA Biological Networks are making the atlases available on the HCA Data Portal as they are released.
View Article and Find Full Text PDFLight People: Prof. Henry Snaith's (FRS) perovskite optoelectronics journey.
Light Sci Appl
January 2025
Executive Management College of CHN ENERGY, No.7 Binhe Avenue, North District of Future Science City, Changping District, Beijing, 102211, China.
In 2012, Prof. Henry Snaith demonstrated the first solid-state perovskite solar cell (PSC) with an efficiency of 10.9%, igniting a surge of interest and research into perovskite materials for their potential to revolutionize the photovoltaic (PV) industry.
View Article and Find Full Text PDFBiogenic synthesized CuO nanoparticles and 5-fluorouracil loaded anticancer gel for HeLa cervical cancer cells.
Discov Nano
December 2024
Department of Pharmaceutics, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
Cervical cancer remains a significant health challenge in developing countries are high due to low HPV vaccination rates, delayed diagnosis, and restricted healthcare access. Metal nanomaterials, such as copper oxide (CuO) nanoparticles (NPs), have shown significant promise in cancer therapy due to their ability to induce apoptosis. 5-Fluorouracil (5-Fu) enhances the cytotoxic effect against cervical cancer, working synergistically with CuO NPs to maximize the therapeutic impact while potentially reducing the 5-Fu's systemic side effects.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!