Results 61 to 70 of about 911,945 (298)

Horizontal transfer between loose compartments stabilizes replication of fragmented ribozymes

, 2019
The emergence of replicases that can replicate themselves is a central issue in the origin of life. Recent experiments suggest that such replicases can be realized if an RNA polymerase ribozyme is divided into fragments short enough to be replicable by ...
Kamimura, Atsushi, Kaneko, Kunihiko, Matsubara, Yoshiya J., Takeuchi, Nobuto   +3 more
core   +2 more sources

Transmission of mitochondrial DNA following assisted reproduction and nuclear transfer [PDF]

, 2006
Review of the articleMitochondria are the organelles responsible for producing the majority of a cell's ATP and also play an essential role in gamete maturation and embryo development.
Alam, Almeida-Santos, Anderson, Ankel-Simons, Barritt, Bavister, Blok, Boulet, Brenner, Brison, Brown, Brown, Campbell, Chang, Chen, Chen, Chinnery, Chung, Cibelli, Cohen, Cortesini, Cui, Cummins, Cummins, Dailey, Danan, Davis, De Block, Dean, Dumollard, Dunbar, D’Aurelio, E.C. Spikings, Eichenlaub-Ritter, Eisen, El Shourbagy, Falkenberg, Fisher, Fisher, Fulka, Gahan, Giles, Graziewicz, Gyllensten, Hammer, Han, Hance, Hanna, Hauswirth, He, Hecht, Hiendleder, Hiendleder, Hiendleder, Holden, Houghton, Humpherys, Inoue, Irwin, J. Alderson, J.C.St. John, Jansen, Kaneda, Keefe, Kenyon, King, Kirches, Klopstock, Koehler, Kondo, Kondo, Kong, Kong, Kraytsberg, Kvist, Laflamme, Larsson, Larsson, Larsson, Larsson, Leese, Lertrit, Lestienne, Levy, Lin, Liu, Liu, Liu, Lloyd, Ludwig, Luetjens, Machaty, Magnusson, Mancuso, Marchington, Margineantu, May-Panloup, McConnell, McCreath, McKenzie, McKenzie, McKenzie, Meirelles, Meirelles, Meirelles, Meusel, Michaels, Monnat, Moyes, Munne, Munsie, Nagao, Naini, Nakamura, Naviaux, Nishi, Nishigaki, Nishimura, Normile, Ojala, Ono, Palermo, Pfeiffer, Piko, Piko, Ponzetto, Poulton, Reynier, Reynier, Rideout, Rubart, Ruiz-Pesini, Sathananthan, Sathananthan, Sato, Satoh, Sazer, Scarpulla, Schon, Schwartz, Seifer, Sherratt, Shitara, Shoubridge, Siciliano, Smith, Sokolova, Spelbrink, Spiropoulos, St. John, St. John, St. John, St. John, St. John, St. John, St. John, St. John, Steinborn, Steinborn, Steuerwald, Stojanovski, Stojkovic, Sturmey, Sun, Sun, Suomalainen, Sutovsky, Sutovsky, Takeda, Takeda, Takeda, Takeuchi, Takeuchi, Taylor, Tessa, Thompson, Tiranti, Trounce, Trounson, Tsaousis, Vajta, Van Blerkom, Van Blerkom, Van Blerkom, Van Goethem, Wakayama, Wallace, Wallace, Wernig, White, White, Wiesner, Wilding, Wilmut, Xu, Yakes, Yang, Yang, Zhang, Zhao, Zouros   +200 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

RNA compaction and iterative scanning for small RNA targets by the Hfq chaperone

Nature Communications
RNA-guided enzymes must quickly search a vast sequence space for their targets. This search is aided by chaperones such as Hfq, a protein that mediates regulation by bacterial small RNAs (sRNAs).
Ewelina M. Małecka, Sarah A. Woodson
doaj   +1 more source

The complete plastid genome of a marine microalgae Cryptophyceae sp. CCMP2293 (Cryptophyta)

Mitochondrial DNA. Part B. Resources, 2019
In this study, we present the complete plastid genome of Cryptophyceae sp. CCMP2293. The circular genome is 139,208 bp in length and contains 142 protein-coding genes (PCGs), 30 transfer RNA (tRNA) genes, 6 ribosome RNA (rRNA) genes, and 1 transfer ...
Kuipeng Xu, Shunxin Hu, Xianghai Tang
doaj   +1 more source

Coherent π^0 photoproduction on the deuteron up to 4 GeV [PDF]

, 1999
The differential cross section for ^2H(γ,d)π^0 has been measured at deuteron center-of-mass angles of 90° and 136°. This work reports the first data for this reaction above a photon energy of 1 GeV, and permits a test of the apparent constituent counting
Arrington, J., Filippone, B. W., McKeown, R. D., Meekins, D. G.   +3 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Mapping Current Studies of tRNA Fragments onto Disease Landscape

Biomolecules
Transfer-RNA-derived fragments (tRFs) are a relatively recently discovered class of non-coding RNAs derived from both precursor and mature transfer RNAs (tRNAs).
Sathyanarayanan Vaidhyanathan, MacKenna Durbin, Adesupo A. Adetowubo, Lisa H. Do, Sheida Kavehmoghaddam, Sai Anusha Jonnalagadda, Bryan Ramirez Aguilar, Tamin Ortiz-Gomez, Yan X. Lin, Asim Dave, Fatmanur Kiliç, Alexa R. Karp, Mohammed Imthiyas Rahmah, Noor F. Riaz, Nikhila Mandava, Aleece Siner, Andrey Grigoriev   +16 more
doaj   +1 more source

tRNA Profiling of Mesenchymal Stem Cell Exosome [PDF]

, 2018
Background: Exosomes have great potential in regenerative medicine through the transfer of their bioactive cargos, such as RNA. tRF RNA and tiRNA are tRNAderived non-coding RNA.
San, Khin MiMi
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source