A recent antimalarial screen by Alder and colleagues has uncovered a natural product, PDE-I, with DNA-binding and schizonticidal activity against Plasmodium falciparum. Parasite specificity is likely conferred by the extremely high A+T content of the P. falciparum genome. We discuss here this character as a potential target for future drugs.
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http://dx.doi.org/10.1016/j.tips.2022.01.003 | DOI Listing |
bioRxiv
December 2024
University of Virginia, Department of Biology, Charlottesville, VA, USA.
Changes in the copy number of large genomic regions, termed copy number variations (CNVs), contribute to important phenotypes in many organisms. CNVs are readily identified using conventional approaches when present in a large fraction of the cell population. However, CNVs that are present in only a few genomes across a population are often overlooked but important; if beneficial under specific conditions, a de novo CNV that arises in a single genome can expand during selection to create a larger population of cells with novel characteristics.
View Article and Find Full Text PDFNucleic Acids Res
January 2025
Department of Physics, 845 W Taylor St, University of Illinois Chicago, Chicago, IL 60607, USA.
Altered DNA dynamics at lesion sites are implicated in how DNA repair proteins sense damage within genomic DNA. Using laser temperature-jump (T-jump) spectroscopy combined with cytosine-analog Förster Resonance Energy Transfer (FRET) probes that sense local DNA conformations, we measured the intrinsic dynamics of DNA containing 3 base-pair mismatches recognized in vitro by Rad4 (yeast ortholog of XPC). Rad4/XPC recognizes diverse lesions from environmental mutagens and initiates nucleotide excision repair.
View Article and Find Full Text PDFMitochondrial DNA B Resour
January 2025
CSIRO Environment, Black Mountain, ACT, Australia.
Biting midges ( spp.) are important vectors of several insect borne arboviruses but are underrepresented in terms of availability of high-resolution genomic resources. We assembled and annotated complete mitochondrial genomes for two species, namely and which are proven vectors for Bluetongue Virus (BTV).
View Article and Find Full Text PDFThe ARID1A gene, frequently mutated in cancer, encodes the AT-rich interactive domain-containing protein 1A, a key component of the chromatin remodeling SWI/SNF complex. The ARID1A protein features a conserved DNA-binding domain (ARID domain) of approximately 100 residues crucial for its function. Despite the frequency of mutations, the impact on ARID1A's stability and contribution to cancer progression remains unclear.
View Article and Find Full Text PDFiScience
December 2024
Guangzhou Municipal Key Laboratory of Metabolic Diseases and Reproductive Health, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China.
AT-rich sequence can cause structure variants such as translocations and its instability can be accelerated by replication stresses. When human 16p11.2 or 22q11.
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