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Download as PDF; Printable version; ... The channel capacity is defined as ... [12] in 1990, who showed that its ...
Some authors refer to it as a capacity. But such an errorless channel is an idealization, and if M is chosen small enough to make the noisy channel nearly errorless, the result is necessarily less than the Shannon capacity of the noisy channel of bandwidth , which is the Hartley–Shannon result that followed later.
Ion channels are a type of transmembrane channel responsible for the passive transport of positively charged ions (sodium, potassium, calcium, hydrogen and magnesium) and negatively charged ions (chloride) and, can be either gated or ligand-gated channels. One of the best studied ion channels is the potassium ion channel. The potassium ion ...
The sodium channel selectivity filter is composed of a single residue in each of the four pore-loops of the four functional domains. These four residues are known as the DEKA motif. [52] The permeation rate of sodium through the sodium channel is determined by a four carboxylate residues, the EEDD motif, which make up the outer charged ring. [52]
Thermodynamically the flow of substances from one compartment to another can occur in the direction of a concentration or electrochemical gradient or against it. If the exchange of substances occurs in the direction of the gradient, that is, in the direction of decreasing potential, there is no requirement for an input of energy from outside the system; if, however, the transport is against ...
The perinucleolar compartment was first discovered due to characterizing the polypyrimidine tract-binding protein (PTB), which is an RNA binding protein involved with pre-mRNA splicing, stability, and regulating translation. [7] The PTB and other binding proteins are localized in the PNC to primarily process RNA polymerase II.
Set up to promote, develop and propagate Urdu language, Council started its operation in Delhi on April 1, 1996. In its capacity as the National Nodal Agency for the promotion of the Urdu language NCPUL is the principal coordinating and monitoring authority for promotion of Urdu language and Urdu education.
The PTB domain interacts with the cytoplasmic tails of beta integrin by binding to an NPXY motif. [3] The phosphotyrosine-binding domain of insulin receptor substrate-1 is not related to the phosphotyrosine-binding domain of tensin. Insulin receptor substrate-1 proteins contain both a pleckstrin homology domain and a phosphotyrosine binding ...