Results 31 to 40 of about 201,489 (346)

Solution conformation of 2-aminopurine dinucleotide determined by ultraviolet two-dimensional fluorescence spectroscopy

New Journal of Physics, 2013
We have observed the conformation-dependent electronic coupling between the monomeric subunits of a dinucleotide of 2-aminopurine (2-AP), a fluorescent analogue of the nucleic acid base adenine.
Julia R Widom, Neil P Johnson, Peter H von Hippel, Andrew H Marcus   +3 more
doaj   +1 more source

Conformational classification of functional nucleic acids [PDF]

Nucleic Acids Symposium Series, 1999
The kink parameters would provide the tolerant aspect for irregular helical structure of nucleic acid. Using these kink parameters, the classification of conformation space was carried for the functional nucleic acid molecules. The kink parameters could afford us the simple structural aspects about the constructive parts of functional molecules.
openaire   +3 more sources

TFE and Spt4/5 open and close the RNA polymerase clamp during the transcription cycle [PDF]

, 2016
Transcription is an intrinsically dynamic process and requires the coordinated interplay of RNA polymerases (RNAPs) with nucleic acids and transcription factors.
Gietl, Andreas, Grohmann, Dina, Schulz, Sarah, Smollett, Katherine, Tinnefeld, Philip, Werner, Finn   +5 more
core   +1 more source

Insights on the DNA Stability in Aqueous Solutions of Ionic Liquids

Frontiers in Bioengineering and Biotechnology, 2020
Deoxyribonucleic acid (DNA) carries the genetic information essential for the growth and functioning of living organisms, playing a significant role in life sciences research.
Teresa B. V. Dinis, Fani Sousa, Mara G. Freire   +2 more
doaj   +1 more source

Structural visualization of key steps in human transcription initiation. [PDF]

, 2013
Eukaryotic transcription initiation requires the assembly of general transcription factors into a pre-initiation complex that ensures the accurate loading of RNA polymerase II (Pol II) at the transcription start site. The molecular mechanism and function
Fang, Jie, He, Yuan, NOGALES, Eva, Taatjes, Dylan   +3 more
core   +1 more source

Microgels and apparatus for PAGE of nucleic acids in one or two dimensions

BioTechniques, 2018
We describe a system for horizontal 1D or 2D PAGE comprising an apparatus and microgels. There is no buffer outside the gel, making handling and sample loading easy.
Hans G Thormar, Gudmundur H Gunnarsson, Bjarki Gudmundsson, Kristjan Leosson, Peter Estibeiro, Jon J Jonsson   +5 more
doaj   +1 more source

Introduction to protein folding for physicists [PDF]

, 2007
The prediction of the three-dimensional native structure of proteins from the knowledge of their amino acid sequence, known as the protein folding problem, is one of the most important yet unsolved issues of modern science.
Abagyan R. A., Arnold V. I., Calera C. Gómez-Moreno, Chothia C., Creighton T. E., Dawkins R., Dawkins R., Drenth J., Dubrovin B. A., Fersht A., Gibson G., Goldstein H., Greiner W., Halgren T. A., Haltia T., Head-Gordon T., Lesk A. M., Levinthal C., Pablo Echenique, Plotkin S. S., Smith C., van Kampen N. G.   +21 more
core   +3 more sources

T7 RNA polymerase functions in vitro without clustering. [PDF]

PLoS ONE, 2012
Many nucleic acid polymerases function in clusters known as factories. We investigate whether the RNA polymerase (RNAP) of phage T7 also clusters when active.
Kieran Finan, Joseph P Torella, Achillefs N Kapanidis, Peter R Cook   +3 more
doaj   +1 more source

First High-Resolution Crystal Structures of DNA:2′-O-Methyl-RNA Heteroduplexes

Crystals, 2022
Heteroduplexes composed of all-DNA and all-2′-OMe RNA strands do not occur in nature, but they have found application in the development of molecular beacons and could also be used as aptamers or elements of nucleic acid-based nanostructures that will ...
Rafał Dolot, Anna Maciaszek, Barbara Mikołajczyk, Barbara Nawrot   +3 more
doaj   +1 more source

Direct comparison of nick-joining activity of the nucleic acid ligases from bacteriophage T4 [PDF]

, 2006
The genome of bacteriophage T4 encodes three polynucleotide ligases, which seal the backbone of nucleic acids during infection of host bacteria. The T4Dnl (T4 DNA ligase) and two RNA ligases [T4Rnl1 (T4 RNA ligase 1) and T4Rnl2] join a diverse array of ...
Amitsur, Arabshahi, Bebenek, Begley, Bellacosa, Blondal, Blondal, Cherepanov, Cherepanov, Clepet, Della, Desmond R. Bullard, Doherty, Engler, Fareed, Higgins, Ho, Ho, Kaufmann, Keppetipola, Kornberg, Kuhn, Lavesa-Curto, Lehman, Markham, Martins, Martins, Miller, Moore, Nandakumar, Nandakumar, Nandakumar, Nick McElhinny, Omari, Pascal, Pitcher, Pitcher, Richard P. Bowater, Rossi, Ruiz, Runnels, Rydberg, Sambrook, Sekiguchi, Shuman, Shuman, Snopek, Sriskanda, Stuart, Timson, Tomkinson, Wang, Wang, Weiss, Wilkinson, Wilkinson, Wilkinson, Wood, Wood, Worthey, Yin, Yin   +61 more
core   +4 more sources