A homologous transformation system was developed using the endogenous ATP-sulfurylase gene, AasC, as a selectable marker in Aspergillus aculeatus. Spontaneous mutation was proved to be beneficial in isolating AasC-deficient mutants. Molecular analysis of sC(+) transformants revealed that the frequency of single copy integration at ATP-sulfurylase locus was more than 40%.
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http://dx.doi.org/10.1271/bbb.80772 | DOI Listing |
Cancers (Basel)
December 2024
Fralin Biomedical Research Institute at VTC, Roanoke, VA 24016, USA.
The dysregulation of phosphatidylinositol 3-kinase (PI3K) signaling plays a pivotal role in driving neoplastic transformation by promoting uncontrolled cell survival and proliferation. This oncogenic activity is primarily caused by mutations that are frequently found in PI3K genes and constitutively activate the PI3K signaling pathway. However, tumorigenesis can also arise from nonmutated PI3K proteins adopting unique active conformations, further complicating the understanding of PI3K-driven cancers.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Institute of Bast Fiber Crops & Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China. Electronic address:
Membranes have been used as versatile tools for the separation of various natural products; however, the selective separation of structural analogs of natural products using membranes remains challenging. In this study, biocomposite membranes based on poly(ionic liquids) and different natural fibers (jute, cotton, or wool) were successfully prepared. Natural fibers can regulate the microstructure and improve the mechanical properties of membranes.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300450, China.
Myeloid-derived suppressor cells (MDSCs) within the tumor microenvironment (TME) contribute to the malignant progression of tumors by exerting immunosuppressive effects. Bacterial lipopolysaccharides (LPS) have been widely demonstrated in various types of solid tumors. LPS can promote the malignant progression of tumors, which mechanism has not yet been fully elucidated.
View Article and Find Full Text PDFAnalyst
January 2025
School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
MicroRNAs (miRNAs) are considered reliable biomarkers for a variety of diseases. However, their low abundance in organisms and high sequence similarity of homologous miRNAs make their accurate detection challenging. Here, we constructed a novel fluorescent biosensor for the detection of miRNA-155, a potential biomarker of neuroinflammation, based on duplex-specific nuclease (DSN) assisted amplification and DNA-templated silver nanoclusters (DNA-AgNCs) as fluorescence signal probes.
View Article and Find Full Text PDFPlant Cell Physiol
January 2025
Laboratory for Chemistry and Life Science, Institute of Innovative Research, Institute of Science Tokyo, Yokohama, Japan.
The unicellular red alga Cyanidioschyzon merolae is a eukaryotic photosynthetic model organism used for basic and applied cell biology studies. Its nuclear genome can be modified by homologous recombination with exogenously introduced DNA. The comparison of mutants with isogenic strains is critical for reliable genetic analyses; however, this has been impossible thus far.
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