منابع مشابه
Mitochondriolus: assembling mitoribosomes
The ribosome is an ancient ribonucleoprotein machine universally responsible for catalyzing protein synthesis. Within eukaryotic cells, mitochondria contain their own ribosomes (mitoribosomes), which are highly modified ribosomes of bacterial descent, specialized for the synthesis of a handful of proteins, all essential for the biogenesis of the oxidative phosphorylation system. With high-resol...
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Highly purified mitochondrial ribosomes (mitoribosomes) have been obtained from the yeast Candida utilis. Sedimentation analysis in sucrose gradients made in 5 mM MgCl(2), 1 mM Tris, pH 7.4 and 50 mM KCl clearly distinguishes mitoribosomes (72S) from cytoplasmic ribosomes (cytoribosomes) (78S). Mitoribosomes are completely dissociated into 50S and 36S subunits at 10(-4)M MgCl(2) whereas complet...
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One of the grand challenges of robotics is the design of robots that are adaptive and self-sufficient. This can be crucial for robots exposed to environments that are unstructured (in space and time) or not easily accessible for a human operator, such as the inside of a blood vessel, a collapsed building, the deep sea, or the surface of another planet.Modular reconfigurable robots are among the...
متن کاملSelf-Assembling Dynamical Hierarchies
This paper addresses the open problem of assembling multilevelled hierarchical structure. It presents a model of an infinitely-levelled, self-assembling dynamical hierarchy which arises from the interaction of geometric primary elements with a fixed complexity. A formal description of the presented hierarchy is derived. This quantifies the relative compression achieved by describing the system ...
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The way the hippocampus processes information and encodes memories in the form of "cell assemblies" is likely determined in part by how its circuits are wired up during development. In this issue, Xu et al. now provide new insight into how neurons arising from a single common precursor migrate to their final destination and form functionally synchronous ensembles.
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ژورنال
عنوان ژورنال: Oncotarget
سال: 2015
ISSN: 1949-2553
DOI: 10.18632/oncotarget.4646