نتایج جستجو برای: chew
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The chemotaxis sensory system allows bacteria such as Escherichia coli to swim towards nutrients and away from repellents. The underlying pathway is remarkably sensitive in detecting chemical gradients over a wide range of ambient concentrations. Interactions among receptors, which are predominantly clustered at the cell poles, are crucial to this sensitivity. Although it has been suggested tha...
PrzeglÄ d Kulturoznawczy » 2021 Numer 1 (47) Crip Appetites: American Gastrodystopias in the Graphic Series Chew A
In the Gram-positive soil bacterium Bacillus subtilis, the chemoreceptors are coupled to the central two-component kinase CheA via two proteins, CheW and CheV. CheV is a two-domain protein with an N-terminal CheW-like domain and a C-terminal two-component receiver domain. In this study, we show that CheV is phosphorylated in vitro on a conserved aspartate in the presence of phosphorylated CheA ...
A major difference between reptile and mammalian herbivores is that the former do not masticate their food. Actually, food particle size reduction by chewing is usually considered one of the adaptations facilitating the higher metabolic rates of mammals. However, quantitative comparisons of ingesta particle size between the clades have, to our knowledge, not been performed so far. We measured m...
We present a case of patient with orofacial cancer having pain on one side of face affecting her ability to speak, chew, swallow and sleep leading to emotional and behavioral deterioration. A diagnostic stellate ganglion block was performed followed by chemical neurolysis using phenol under ultrasound guidance, to prevent complications due to inadvertent spread of drug. Her pain scores decrease...
The serine chemoreceptor Tsr and other methyl-accepting chemotaxis proteins (MCPs) control the swimming behaviour of Escherichia coli by generating signals that influence the direction of flagellar rotation. MCPs produce clockwise (CW) signals by stimulating the autophosphorylation activity of CheA, a cytoplasmic histidine kinase, and counter-clockwise signals by inhibiting CheA. CheW couples C...
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