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Literature DB >> 31967161

Self-assembling purine and pteridine quartets: how do π-conjugation patterns affect resonance-assisted hydrogen bonding?

Hari Ram Paudel¹, Ranjita Das¹, Chia-Hua Wu¹, Judy I Wu¹.

Abstract

Computed association strengths for 43 purine and pteridine quartets (38 to 100 kcal mol-1) show excellent linear correlation with π-conjugation gain in the assembled monomers (r2 = 0.965). Even quartets having the same secondary electrostatic interactions can display very different association strengths depending on the π-conjugation patterns of the monomeric units.

Entities: Chemical Disease Species

Mesh：

Substances：
Pteridines
Purines

Year: 2020 PMID： 31967161 PMCID： PMC7053557 DOI： 10.1039/c9ob02412c

Source DB: PubMed Journal: Org Biomol Chem ISSN： 1477-0520 Impact factor: 3.876

14 in total

Review 1. G-quartets 40 years later: from 5'-GMP to molecular biology and supramolecular chemistry.

Authors: Jeffery T Davis
Journal: Angew Chem Int Ed Engl Date: 2004-01-30 Impact factor: 15.336

2. Telomere structure and stability: covalency in hydrogen bonds, not resonance assistance, causes cooperativity in guanine quartets.

Authors: Célia Fonseca Guerra; Hester Zijlstra; Gábor Paragi; F Matthias Bickelhaupt
Journal: Chemistry Date: 2011-10-13 Impact factor: 5.236

Self-assembling purine and pteridine quartets: how do π-conjugation patterns affect resonance-assisted hydrogen bonding?

Review 1. G-quartets 40 years later: from 5'-GMP to molecular biology and supramolecular chemistry.

2. Telomere structure and stability: covalency in hydrogen bonds, not resonance assistance, causes cooperativity in guanine quartets.

3. Guanine quartet networks stabilized by cooperative hydrogen bonds.

4. Block-localized wavefunction (BLW) method at the density functional theory (DFT) level.

5. Why do A·T and G·C self-sort? Hückel aromaticity as a driving force for electronic complementarity in base pairing.

6. NBO 6.0: natural bond orbital analysis program.

7. Reciprocal hydrogen bonding-aromaticity relationships.

8. Inverting the G-Tetrad Polarity of a G-Quadruplex by Using Xanthine and 8-Oxoguanine.

9. Formation of parallel four-stranded complexes by guanine-rich motifs in DNA and its implications for meiosis.

10. Xanthine and 8-oxoguanine in G-quadruplexes: formation of a G·G·X·O tetrad.

1. Hydrogen bond design principles.