منابع مشابه
Adaptive Ising Model of Bacterial Chemotactic Receptor Network
We present a so-called adaptive Ising model (AIM) to provide a unifying explanation of the sensitivity and perfect adaptation in bacterial chemotactic signalling, based on the coupling among receptor dimers. In an AIM, an external field, representing ligand binding, is randomly applied to a fraction of spins, representing the state of the receptor dimers, and there is a delayed negative feedbac...
متن کاملAdaptive Ising Model and Bacterial Chemotactic Receptor Network
We present a so-called adaptive Ising model (AIM) to provide a unifying explanation for sensitivity and perfect adaptation in bacterial chemotactic signalling, based on coupling among receptor dimers. In an AIM, an external field, representing ligand binding, is randomly applied to a fraction of spins, representing the states of the receptor dimers, and there is a delayed negative feedback from...
متن کاملTraveling bands of chemotactic bacteria: a theoretical analysis.
Bands of motile Escherichia coli have been observed to travel at constant speed when the bacteria are placed in one end of a capillary tube containing oxygen and an energy source. Such bands are a consequence of a chemotatic mechanism which permits the bacteria to seek an optimal environment: the bacteria avoid low concentrations and move preferentially toward higher concentrations of some crit...
متن کاملA "trimer of dimers"-based model for the chemotactic signal transduction network in bacterial chemotaxis.
The network that controls chemotaxis in Escherichia coli is one of the most completely characterized signal transduction systems to date. Receptor clustering accounts for characteristics such as high sensitivity, precise adaptation over a wide dynamic range of ligand concentrations, and robustness to variations in the amounts of intracellular proteins. To gain insights into the structure-functi...
متن کاملNeutrophil chemotactic factors in bacterial pneumonia.
The influx of neutrophils into the lung is a prominent feature in patients with bacterial pneumonia. Since neutrophils migrate in response to chemotactic factors, chemotactic activity was evaluated in bronchoalveolar lavage (BAL) fluid obtained from 12 patients with bacterial pneumonia and ten normal control subjects. Chemotactic activity was greatly elevated in the BAL fluid of the pneumonia p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of Mathematical Biology
سال: 1986
ISSN: 0092-8240
DOI: 10.1016/s0092-8240(86)90017-0