Results 121 to 130 of about 1,248,361 (297)

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

The influence of CpG and UpA dinucleotide frequencies on RNA virus replication and characterization of the innate cellular pathways underlying virus attenuation and enhanced replication [PDF]

, 2014
Most RNA viruses infecting mammals and other vertebrates show profound suppression of CpG and UpA dinucleotide frequencies. To investigate this functionally, mutants of the picornavirus, echovirus 7 (E7), were constructed with altered CpG and UpA ...
Atkinson, N J, Simmonds, Peter, Atkinson, Nicky J., Evans, David J., Witteveldt, Jeroen, Evans, D. J.   +5 more
core   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

A new yeast poly(A) polymerase complex involved in RNA quality control [PDF]

, 2005
Eukaryotic cells contain several unconventional poly(A) polymerases in addition to the canonical enzymes responsible for the synthesis of poly(A) tails of nuclear messenger RNA precursors.
Sabine Dettwiler (27038), Arno Friedlein (27039), Keller Walter, Stepánka Vanácová, Vanacova, S., Blank Diana, Martin Georges, Gérard Keith, Keller, W., Sabine Dettwiler, Jeannette Wolf (27035), Langen, H., Keith, G., Diana Blank (27037), Vanˇácˇová Sˇteˇpánka, Vanácová Stepánka, Georges Martin, Hanno Langen, Diana Blank, Hanno Langen (27040), Gérard Keith (27041), Keith Gérard, Walter Keller (27042), Wolf, J., Jeannette Wolf, Blank, D., Arno Friedlein, Wolf Jeannette, Štěpánka Vaňáčová (27034), Walter Keller, Friedlein, A., Langen Hanno, Friedlein Arno, Dettwiler, S., Dettwiler Sabine, Georges Martin (27036), Martin, G.   +36 more
core   +1 more source

Site specific enzymatic cleavage of RNA

Nucleic Acids Research, 1979
The hybridization of a DNA oligonucleotide a specific tetramer or longer) will direct a cleavage by RNase H (EC 3.1.4.34) to a specific site in RNA. The resulting fragments can then be labeled at their 5' or 3' ends, purified, and sequenced directly.
openaire   +3 more sources

Small RNA pathways in mammalian oocytes

FEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

A conserved NS3 surface patch orchestrates NS2 protease stimulation, NS5A hyperphosphorylation and HCV genome replication.

PLoS Pathogens, 2015
Hepatitis C virus (HCV) infection is a leading cause of liver disease worldwide. The HCV RNA genome is translated into a single polyprotein. Most of the cleavage sites in the non-structural (NS) polyprotein region are processed by the NS3/NS4A serine ...
Olaf Isken, Ulrike Langerwisch, Vlastimil Jirasko, Dirk Rehders, Lars Redecke, Harish Ramanathan, Brett D Lindenbach, Ralf Bartenschlager, Norbert Tautz   +8 more
doaj   +1 more source

Hyperosmotic stress‐induced redistribution of pre‐mRNA cleavage factor I subunits is associated with shifts in alternative polyadenylation

FEBS Open Bio, EarlyView.
Hyperosmotic stress triggers the relocation of the CFIm complex from the nucleus to the cytoplasm. This shift creates a nuclear ‘stoichiometric bottleneck’, limiting CFIm availability for mRNA processing. Consequently, specific mRNAs like NUDT21 and DICER1 undergo targeted 3′UTR shortening, demonstrating how spatial protein dynamics drive rapid ...
Hitomi Soumiya, Masatake Osawa, Hidefumi Fukumitsu   +2 more
wiley   +1 more source

Crystal structure of Schmallenberg orthobunyavirus nucleoprotein-RNA complex reveals a novel RNA sequestration mechanism [PDF]

, 2013
Schmallenberg virus (SBV) is a newly emerged orthobunyavirus (family Bunyaviridae) that has caused severe disease in the offspring of farm animals across Europe.
Richard M. Elliott, Böttcher, Bettina, Li, P., Dong, H., Li, Ping, Dong, Changjiang, Dong, Haohao, Elliott, R., Boettcher, Bettina, Elliott, Richard M., Bottcher, B., Haohao Dong, Bettina Böttcher, Ping Li, Elliott, Richard M, Dong, C., Changjiang Dong   +16 more
core   +1 more source

High-Resolution Structure of Cas13b and Biochemical Characterization of RNA Targeting and Cleavage

Cell Reports, 2019
Summary: Type VI CRISPR-Cas systems contain programmable single-effector RNA-guided RNases, including Cas13b, one of the four known family members. Cas13b, which has been used for both RNA editing and nucleic acid detection, is unique among type VI ...
Ian M. Slaymaker, Pablo Mesa, Max J. Kellner, Soumya Kannan, Edward Brignole, Jeremy Koob, Patricia R. Feliciano, Stefano Stella, Omar O. Abudayyeh, Jonathan S. Gootenberg, Jonathan Strecker, Guillermo Montoya, Feng Zhang   +12 more
doaj   +1 more source