Alkali metals modified porous carbon for enhanced methanol and acetone selective adsorption: A theoretical study

M Fang, K Wu, X Ma, X Yao, Y Guo, L Yu, Q Wu… - Applied Surface …, 2022 - Elsevier
The doping of alkali metal groups (LiO-, NaO-and KO-) into porous carbons (PC) for acetone
and methanol adsorption were studied for the first time by Grand Canonical Monte Carlo …

AC-motif: a DNA motif containing adenine and cytosine repeat plays a role in gene regulation

JH Hur, CY Kang, S Lee, N Parveen, J Yu… - Nucleic Acids …, 2021 - academic.oup.com
I-motif or C4 is a four-stranded DNA structure with a protonated cytosine: cytosine base pair
(C+: C) found in cytosine-rich sequences. We have found that oligodeoxynucleotides …

Occurrence and stability of lone pair–π stacking interactions between ribose and nucleobases in functional RNAs

M Chawla, E Chermak, Q Zhang… - Nucleic acids …, 2017 - academic.oup.com
The specific folding pattern and function of RNA molecules lies in various weak interactions,
in addition to the strong base-base pairing and stacking. One of these relatively weak …

Occurrence and stability of anion–π interactions between phosphate and nucleobases in functional RNA molecules

M Chawla, K Kalra, Z Cao, L Cavallo… - Nucleic acids …, 2022 - academic.oup.com
We present a systematic structural and energetic characterization of phosphate (OP)–
nucleobase anion… π stacking interactions in RNAs. We observed OP–nucleobase stacking …

Structural landscape of base pairs containing post-transcriptional modifications in RNA

PP Seelam, P Sharma, A Mitra - RNA, 2017 - rnajournal.cshlp.org
Base pairs involving post-transcriptionally modified nucleobases are believed to play
important roles in a wide variety of functional RNAs. Here we present our attempts toward …

The effect of adenine protonation on RNA phosphodiester backbone bond cleavage elucidated by deaza-nucleobase modifications and mass spectrometry

E Fuchs, C Falschlunger, R Micura… - Nucleic Acids …, 2019 - academic.oup.com
The catalytic strategies of small self-cleaving ribozymes often involve interactions between
nucleobases and the ribonucleic acid (RNA) backbone. Here we show that multiply …

Estimating strengths of individual hydrogen bonds in RNA base pairs: toward a consensus between different computational approaches

A Halder, D Data, PP Seelam, D Bhattacharyya… - ACS …, 2019 - ACS Publications
Noncoding RNA molecules are composed of a large variety of noncanonical base pairs that
shape up their functionally competent folded structures. Each base pair is composed of at …

The role of N7 protonation of guanine in determining the structure, stability and function of RNA base pairs

A Halder, S Bhattacharya, A Datta… - Physical Chemistry …, 2015 - pubs.rsc.org
The roles of protonated nucleobases in stabilizing different structural motifs and in facilitating
catalytic functions of RNA are well known. Among different polar sites of all the nucleobases …

Alkaline pH has an unexpected effect on transcriptional pausing during synthesis of the Escherichia coli pH-responsive riboswitch

C Stephen, TV Mishanina - Journal of Biological Chemistry, 2022 - ASBMB
Riboswitches are 5′-untranslated regions of mRNA that change their conformation in
response to ligand binding, allowing post-transcriptional gene regulation. This ligand-based …

Frequency and hydrogen bonding of nucleobase homopairs in small molecule crystals

MK Cabaj, PM Dominiak - Nucleic Acids Research, 2020 - academic.oup.com
We used the high resolution and accuracy of the Cambridge Structural Database (CSD) to
provide detailed information regarding base pairing interactions of selected nucleobases …