Results 11 to 20 of about 233,386 (297)

Assessing the preservation of cytosine methylation in ancient DNA from five prehistoric Native American populations [PDF]

, 2015
textCytosine methylation of CpG dinucleotides is an important epigenetic mark that regulates gene expression in humans. While methylation patterns in extant populations have been widely studied, few studies have attempted to analyze methylation in ...
Smith, Ricky Wayne Aldon
core   +1 more source

Hydrogen-bonding patterns in bis(cytosinium) tartarate monohydrate

IUCrData, 2017
The asymmetric unit of the title cystosinium salt derivative, 2C4H6N3O+·C4H4O62−·H2O, contains two cytosinium cations, one tartaric acid anion and a water molecule. The two cytosinium cations are almost planar (r.m.s. deviations of the fitted atoms are 0.
P. Jaikumar, T. V. Sundar, N. Sharmila, T. Balakrishnan, K. Ramamurthi   +4 more
doaj   +1 more source

Use of the Illumina EPIC methylation array for epigenomic research in the crab‐eating macaque (Macaca fascicularis)

Neuropsychopharmacology Reports, 2020
Background Commercially available Illumina DNA methylation arrays (HumanMethylation 27K, HumanMethylation450, and MethylationEPIC BeadChip) can be used for comprehensive DNA methylation analyses of not only the human genome but also other mammalian ...
Yutaka Nakachi, Kazuhiro Ishii, Miki Bundo, Tomoyuki Masuda, Kazuya Iwamoto   +4 more
doaj   +1 more source

5-Fluorocytosine/Isocytosine Monohydrate. The First Example of Isomorphic and Isostructural Co-Crystal of Pyrimidine Nucleobases

Crystals, 2020
To date, despite the crucial role played by cytosine, uracil, and thymine in the DNA/RNA replication process, no examples showing isomorphic and isostructural behavior among binary co-crystals of natural or modified pyrimidine nucleobases have been so ...
Gustavo Portalone
doaj   +1 more source

Rewriting Human History and Empowering Indigenous Communities with Genome Editing Tools. [PDF]

, 2020
Appropriate empirical-based evidence and detailed theoretical considerations should be used for evolutionary explanations of phenotypic variation observed in the field of human population genetics (especially Indigenous populations). Investigators within
Fox, Keolu, Komor, Alexis C, Rallapalli, Kartik Lakshmi   +2 more
core   +2 more sources

Protonated nucleobases are not fully ionized in their chloride salt crystals and form metastable base pairs further stabilized by the surrounding anions

IUCrJ, 2018
This paper presents experimental charge-density studies of cytosinium chloride, adeninium chloride hemihydrate and guaninium dichloride crystals based on ultra-high-resolution X-ray diffraction data and extensive theoretical calculations.
Prashant Kumar, Malgorzata Katarzyna Cabaj, Aleksandra Pazio, Paulina Maria Dominiak   +3 more
doaj   +1 more source

Tricky Topology: Persistence of Folded Human Telomeric i-Motif DNA at Ambient Temperature and Neutral pH

Frontiers in Chemistry, 2020
i-Motifs are four-stranded DNA structures formed from sequences rich in cytosine, held together by hemi-protonated cytosine-cytosine base pairs. These structures have been utilized extensively as pH-switches in DNA-based nanotechnology.
Mahmoud A. S. Abdelhamid, Mahmoud A. S. Abdelhamid, Zoë A. E. Waller, Zoë A. E. Waller   +3 more
doaj   +1 more source

Cytosine ribose flexibility in DNA : a combined NMR 13C spin relaxation and molecular dynamics simulation study [PDF]

, 2008
Using (13)C spin relaxation NMR in combination with molecular dynamic (MD) simulations, we characterized internal motions within double-stranded DNA on the pico- to nano-second time scale.
Elke Duchardt, Lennart Nilsson, Jürgen Schleucher, Isaacs, Sänger, Foloppe, Bax, Schmitz, Schmitz, Rinkel, Zhou, LaPlante, Wu, Olson, Foloppe, Shajani, Vallurupalli, Duchardt, Petzold, Ferner, Lipari, Lipari, Mackerell, Wing, Minasov, Boisbouvier, Tjandra, Korzhnev, Yamazaki, Stone, Mandel, Stueber, d’Auvergne, Garcia de la Torre, Brooks, Foloppe, Mackerell, Jorgensen, Norberg, Feller, Ryckaert, Hatcher, Meints, Boisbouvier, Spielmann, Isaacs, Borer, Paquet, Clore   +48 more
core   +1 more source

Radiological Evaluation of Huntington’s Disease: A Case Report [PDF]

Journal of Clinical and Diagnostic Research
Huntington’s Disease (HD) is a rare neurodegenerative condition inherited in an autosomal dominant pattern, where Gamma Amino Butyric Acid-ergic (GABAergic) neurons in the basal ganglia progressively deteriorate.
Soumyabrata Debnath, R Harshith
doaj   +1 more source

Simultaneous Determination of Four DNA bases at Graphene Oxide/Multi-Walled Carbon Nanotube Nanocomposite-Modified Electrode

Micromachines, 2020
In this study, we developed a modified glassy carbon electrode (GCE) with graphene oxide, multi-walled carbon nanotube hybrid nanocomposite in chitosan (GCE/GO-MWCNT-CHT) to achieve simultaneous detection of four nucleobases (i.e., guanine (G), adenine ...
Shuting Wang, Celia Ferrag, Meissam Noroozifar, Kagan Kerman   +3 more
doaj   +1 more source