How cells avoid errors in metabolic and signaling networks

Jay Mittenthal, Bertrand Clarke, Alexander Scheeline

Research output: Contribution to journalReview article

4 Citations (Scopus)

Abstract

We examine features of intracellular networks that make errors less probable and beneficial responses more probable. In a false negative (F-) error, a network does not respond to input. A network is reliable if it operates with a low probability of a F- error. Features that promote reliability include fewer reactions in sequence, more alternative pathways, no side reactions and negative feedback. In a false positive (F+) error, a network produces output without input. Here, a network is specific if it has a low probability of a F+ error. Conjunctions of signals within or between pathways can improve specificity through sigmoid steady-state response curves, kinetic proofreading and checkpoints. Both reliability and specificity are important in networks that regulate the fate of a cell and in networks with hubs or modules, and this includes scale-free networks. Some networks discriminate among several inputs by responding to each input through a different combination of pathways.

Original languageEnglish (US)
Pages (from-to)2005-2022
Number of pages18
JournalInternational Journal of Modern Physics B
Volume17
Issue number10
DOIs
StatePublished - Apr 20 2003

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cells
negative feedback
conjunction
hubs
modules
output
kinetics
curves

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

Cite this

How cells avoid errors in metabolic and signaling networks. / Mittenthal, Jay; Clarke, Bertrand; Scheeline, Alexander.

In: International Journal of Modern Physics B, Vol. 17, No. 10, 20.04.2003, p. 2005-2022.

Research output: Contribution to journalReview article

Mittenthal, Jay ; Clarke, Bertrand ; Scheeline, Alexander. / How cells avoid errors in metabolic and signaling networks. In: International Journal of Modern Physics B. 2003 ; Vol. 17, No. 10. pp. 2005-2022.
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