Hemi-protonated
Webi-Motif (the name stems from “intercalated”), also known as i-DNA, is a pH-dependent four-stranded nucleic acid structure formed by cytosine-rich sequences via hemi-protonated and intercalated C C+base pairs. WebA possible scheme for non-enzymatic RNA replication at pH 4-5. (a) tRNAGly (GCC) forms dimers through its GCC anticodon due to hemi-protonation of the central cytosine at pH 4-5 [37] (b) At pH...
Hemi-protonated
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Web22 dec. 1994 · PubMed Abstract: At slightly acid or even neutral pH, oligodeoxynucleotides that include a stretch of cytidines form a tetramer structure in which two parallel-stranded … WebThe release of two protons, which stabilize the hemi-protonated cytosine pairs in the native i-motif, can be identified as the initial step for the occurrence of the unfolding …
Web3 dec. 2015 · Similar C-rich sequences may, under acidic conditions, form i-motifs consisting of two parallel duplexes in a head to tail orientation held together by hemi-protonated C + -C pairs. We show that... Web24 mrt. 2024 · i-motifs are noncanonical DNA structures formed via the stack of intercalating hemi-protonated C +: C base pairs in C-rich DNA strands and play …
Web1 jun. 2024 · i-Motifs are quadruplex DNA structures formed from sequences rich in cytosine and held together by intercalated, hemi-protonated cytosine–cytosine base pairs. These sequences are prevalent in gene promoter regions and may play a role in gene transcription. Web2 dec. 2024 · Abstract I-motifs are non-canonical nucleic acids structures characterized by intercalated H-bonds between hemi-protonated cytosines. Evidence on the involvement …
Web22 dec. 1994 · At slightly acid or even neutral pH, oligodeoxynucleotides that include a stretch of cytidines form a tetramer structure in which two parallel-stranded duplexes have their hemi-protonated C.C+ base pairs face-to-face and fully intercalated, in a so-called i-motif, first observed serendipitously in [d(TC5)]4.
Web2 feb. 2024 · The detection and removal of heavy metal species in aquatic environments is of continued interest to address ongoing efforts in water security. This study was focused on the preparation and characterization of aniline grafted chitosan (CS-Ac-An), and evaluation of its adsorption properties with Cu(II) under variable conditions. Materials … fast trac car wash lithia springsWeb31 jan. 2024 · i-Motifs are four-stranded DNA structures formed from sequences rich in cytosine, held together by hemi-protonated cytosine-cytosine base pairs. These … french tile pillow shamsWebThe release of two protons, which stabilize the hemi-protonated cytosine pairs in the native i-motif, can be identified as the initial step for the occurrence of the unfolding process. By a systematic analysis of the proton motion, we are able to validate a … french tile pattern layoutWeb21 jul. 2024 · i-Motifs are quadruplex DNA structures formed from sequences rich in cytosine and held together by intercalated, hemi-protonated cytosine-cytosine base pairs. These … fast trac car wash huntsvilleWebThe hemiacetal group of glucosamine and NAG is easily oxidized by supported metal catalysts, which is similar to the oxidation of glucose (186). Au/MgO converted … fast trac car wash mariettaWebHemi-Protonated Cytosines i-Motifs are four-stranded secondary structures comprised of two parallel-stranded DNA duplexes zipped together in an antiparallel orientation by intercalated, hemi-protonated cytosine–cytosine base pairs (Fig. 2) (Gehring et al. 1993). The building block of i-motifs is the CC+ base pair, and it is formed by the planar french tile patternWeb23 mrt. 2024 · i-motifs are noncanonical DNA structures formed via the stack of intercalating hemi-protonated C⁺: C base pairs in C-rich DNA strands and play essential roles in the regulation of gene... fasttrace 2 download