Invited for the cover of this issue are Sven Vollmer and Clemens Richert of the University of Stuttgart. The cover image hints at the analogy between a honey comb, as a macroscopic storage device, and DNA triplexes with designed binding sites, as molecular storage motifs that can release ATP to fuel a bioluminescence reaction. Read the full text of the article at 10.1002/chem.201503220.
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http://dx.doi.org/10.1002/chem.201503971 | DOI Listing |
Molecules
December 2024
Department of Chemistry, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA.
In the field of drug development, the quest for novel compounds that bind to DNA with high affinity and specificity never ends. In the present work, we report the newest development in this field, namely, triplex DNA-specific binding ligands based on the 5-substituted flavone scaffold in our lab. Biophysical studies showed that the newly synthesized flavone derivatives (depending on the side chains) bind to triplex DNA with binding affinities better than or similar to 5-substituted 3,3',4',7-tetramethoxyflavonoids.
View Article and Find Full Text PDFMol Ther Nucleic Acids
December 2024
Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Alfred Nobels Allé 8, 14152 Huddinge, Stockholm, Sweden.
Anti-gene oligonucleotides belong to a group of therapeutic compounds, which, in contrast to antisense oligonucleotides, bind to DNA. Clamp anti-gene oligonucleotides bind through a double-stranded invasion mechanism. With two arms connected by a linker, they hybridize to one of the DNA strands forming Watson-Crick and Hoogsteen hydrogen bonds.
View Article and Find Full Text PDFAnal Chem
January 2025
Cancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, Shanxi, China.
Flap endonuclease 1 (FEN1) is a specific enzyme capable of recognizing and cleaving triplex DNA structures and releasing 5'-flap fragments. It plays a crucial role in the DNA metabolism of cells, participating in DNA replication and the repair of damaged DNA. Additionally, FEN1 is overexpressed in various tumor tissues, promoting tumor progression and drug resistance through different regulatory mechanisms.
View Article and Find Full Text PDFNAR Mol Med
October 2024
Department of Biology, Tufts University, 200 Boston Ave., Medford, MA 02155, USA.
H-DNA is an intramolecular DNA triplex formed by homopurine/homopyrimidine mirror repeats. Since its discovery, the field has advanced from characterizing the structure to discovering its existence and role . H-DNA interacts with cellular machinery in unique ways, stalling DNA and RNA polymerases and causing genome instability.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2024
Dept. of Chemical Engineering and Analytical Chemistry, University of Barcelona, Marti i Franquès 1-11, E-08028 Barcelona, Spain. Electronic address:
In this work, strategies for the detection of pyrimidine-rich DNA target sequences based on the formation of duplex and antiparallel triplex structures are studied. The presence of the target is detected from the changes in fluorescence of silver nanoclusters stabilized by the corresponding complementary DNA probes. In all cases, the formation of intermolecular structures has been assessed by means of melting experiments and multivariate analysis.
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