Fraction of the energy consumed for maintaining the dissipative steady state that is cost of responding to a simple step change in external ligand concentration (in chemotaxis)

Range ~10 %
Organism Bacteria Escherichia coli
Reference Micali G, Endres RG. Bacterial chemotaxis: information processing, thermodynamics, and behavior. Curr Opin Microbiol. 2016 Apr30: 8-15. doi: 10.1016/j.mib.2015.12.001 p.12 right column top paragraphPubMed ID26731482
Primary Source [41] Sartori P, Granger L, Lee CF, Horowitz JM. Thermodynamic costs of information processing in sensory adaptation. PLoS Comput Biol. 2014 Dec 1110(12):e1003974. doi: 10.1371/journal.pcbi.1003974PubMed ID25503948
Method Primary source abstract: "In this paper, [investigators] establish a general framework for the thermodynamics of information processing in sensing."
Comments P.12 right column top paragraph: "In E. coli the cost of responding to a simple step-change in external ligand concentration is only about 10% of the energy consumed for maintaining the dissipative steady state [primary source]."
Entered by Uri M
ID 115163