G-Quadruplex Forming Oligonucleotides as Anti-HIV Agents
نویسندگان
چکیده
منابع مشابه
G-Quadruplex Forming Oligonucleotides as Anti-HIV Agents.
Though a variety of different non-canonical nucleic acids conformations have been recognized, G-quadruplex structures are probably the structural motifs most commonly found within known oligonucleotide-based aptamers. This could be ascribed to several factors, as their large conformational diversity, marked responsiveness of their folding/unfolding processes to external stimuli, high structural...
متن کاملDiscovery of novel anti-HIV active G-quadruplex-forming oligonucleotides.
A series of d((5')TGGGAG(3')) sequences, 5'-conjugated with a variety of aromatic groups through phosphodiester linkages, were synthesized, showing CD spectra diagnostic of parallel-stranded, tetramolecular G-quadruplex structures. When tested for anti-HIV-1 and HIV-2 activity, potent inhibition of HIV-1 infection in CEM cell cultures was found, associated with high selectivity index values. Su...
متن کاملHybridization of short complementary PNAs to G-quadruplex forming oligonucleotides: An electrospray mass spectrometry study.
We investigated the interaction of the short peptide nucleic acid (PNA) strand [acccca]-PNA with oligodeoxynucleotides containing one, two, or four tracts of TGGGGT units. Electrospray ionization mass spectrometry allowed exploring the wide variety of complex stoichiometries that were found to coexist in solution. In water, the PNA strand forms short heteroduplexes with the complementary DNA se...
متن کاملThe effect of chemical modifications on the thermal stability of different G-quadruplex-forming oligonucleotides
A systematic study of the thermal and conformational properties of chemically modified G-quadruplexes of different molecularities is reported. The effect of backbone charge and atom size, thymine/uracyl substitution as well as the effect of modification at the ribose 2'-position was analyzed by UV spectroscopy. Additional calorimetric studies were performed on different modified forms of the hu...
متن کاملStructure-activity of tetrad-forming oligonucleotides as a potent anti-HIV therapeutic drug.
Recently, we have described the design and characterization of oligonucleotides containing only G and T bases, i.e. T30695 and T30177, that are potent inhibitors of human immunodeficiency virus type 1 (HIV-1) replication in culture (Jing, N., Rando, R. F., Pommier, Y., and Hogan, M. E. (1997) Biochemistry 36, 12498-12505). To understand that observation and to rationalize the generally high the...
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ژورنال
عنوان ژورنال: Molecules
سال: 2015
ISSN: 1420-3049
DOI: 10.3390/molecules200917511