Results 61 to 70 of about 188,934 (259)

Better than Membranes at the Origin of Life?

Life, 2017
Organelles without membranes are found in all types of cells and typically contain RNA and protein. RNA and protein are the constituents of ribosomes, one of the most ancient cellular structures.
Helen Greenwood Hansma
doaj   +1 more source

A limited concentration range of diaphorin, a polyketide produced by a bacterial symbiont of the Asian citrus psyllid, promotes the in vitro gene expression with bacterial ribosomes

Microbiology Spectrum
Diaphorin is a polyketide produced by “Candidatus Profftella armatura” (Gammaproteobacteria: Burkholderiales), an obligate symbiont of a devastating agricultural pest, the Asian citrus psyllid Diaphorina citri (Hemiptera: Psyllidae).
Rena Takasu, Takashi Izu, Atsushi Nakabachi   +2 more
doaj   +1 more source

Characterization of Factors Involved in Localized Translation Near Mitochondria by Ribosome-Proximity Labeling

Frontiers in Cell and Developmental Biology, 2019
Mitochondria exert their many functions through a repertoire of hundreds of proteins. The vast majority of these proteins are encoded in the nuclear genome, translated in the cytosol and imported into the mitochondria. Current models, derived mainly from
Dikla Vardi-Oknin, Dikla Vardi-Oknin, Yoav Arava   +2 more
doaj   +1 more source

Molecular Mimicry of SecA and Signal Recognition Particle Binding to the Bacterial Ribosome

mBio, 2019
Bacteria execute a variety of protein transport systems for maintaining the proper composition of their different cellular compartments. The SecYEG translocon serves as primary transport channel and is engaged in transporting two different substrate ...
Lara Knüpffer, Clara Fehrenbach, Kärt Denks, Veronika Erichsen, Narcis-Adrian Petriman, Hans-Georg Koch   +5 more
doaj   +1 more source

The Stringent Response Inhibits 70S Ribosome Formation in Staphylococcus aureus by Impeding GTPase-Ribosome Interactions

mBio, 2021
During nutrient limitation, bacteria produce the alarmones (p)ppGpp as effectors of a stress signaling network termed the stringent response. RsgA, RbgA, Era, and HflX are four ribosome-associated GTPases (RA-GTPases) that bind to (p)ppGpp in ...
Daniel J. Bennison, Jose A. Nakamoto, Timothy D. Craggs, Pohl Milón, John B. Rafferty, Rebecca M. Corrigan   +5 more
doaj   +1 more source

The isolation and characterisation of temperature-dependent Ricin A chain molecules in Saccharomyces cerevisiae. [PDF]

, 2007
Ricin is a heterodimeric plant protein that is potently toxic to mammalian cells. Toxicity results from the catalytic depurination of eukaryotic ribosomes by ricin A chain (RTA) that follows toxin endocytosis to, and translocation across, the ...
Allen, Brunger, Chaddock, Di Cola, Di Cola, Endo, Esnouf, Frankel, Gemmill, Gietz, Gould, Hazes, Herruer, Higuchi, Hoffman, Iordanov, Jolliffe, Jones, Kirby, Kraulis, Lamb, Li, Lord, Lord, Lord, Marsden, Moazed, Murshudov, Olsnes, Otwinowski, Perrakis, Rapak, Read, Ready, Sambrook, Schmitt, Sikorski, Simpson, Simpson, Wales, Wesche, Weston   +41 more
core   +1 more source

Bacterial Longevity Requires Protein Synthesis and a Stringent Response

mBio, 2019
Gram-negative bacteria in infections, biofilms, and industrial settings often stop growing due to nutrient depletion, immune responses, or environmental stresses.
Liang Yin, Hongyu Ma, Ernesto S. Nakayasu, Samuel H. Payne, David R. Morris, Caroline S. Harwood   +5 more
doaj   +1 more source

Evolutionary pressures on the yeast transcriptome [PDF]

, 2015
Codon usage bias (CUB) is the well known phenomenon that the frequency of synonymous codons is unequal. This is presumably the result of adaptive pressures favouring some codons over others.
Chu, Dominique, Salykin, Anton
core   +1 more source

Sleeping Beauty redux – resting ribosomes in neurons [PDF]

, 2022
Sarah Loerch, Patrick Smith, Zachary T. Campbell, Edward Petrossian   +3 more
openalex   +1 more source

The kinetic mechanism of bacterial ribosome recycling. [PDF]

, 2017
Bacterial ribosome recycling requires breakdown of the post-termination complex (PoTC), comprising a messenger RNA (mRNA) and an uncharged transfer RNA (tRNA) cognate to the terminal mRNA codon bound to the 70S ribosome.
Chen, Yuanwei, Cooperman, Barry S., Kaji, Akira, Kaji, Hideko   +3 more
core   +2 more sources