The calculus of looping sequences

  • Authors:
  • Roberto Barbuti;Giulio Caravagna;Andrea Maggiolo-Schettini;Paolo Milazzo;Giovanni Pardini

  • Affiliations:
  • Dipartimento di Informatica, Università di Pisa, Pisa, Italy;Dipartimento di Informatica, Università di Pisa, Pisa, Italy;Dipartimento di Informatica, Università di Pisa, Pisa, Italy;Dipartimento di Informatica, Università di Pisa, Pisa, Italy;Dipartimento di Informatica, Università di Pisa, Pisa, Italy

  • Venue:
  • SFM'08 Proceedings of the Formal methods for the design of computer, communication, and software systems 8th international conference on Formal methods for computational systems biology
  • Year:
  • 2008

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Abstract

We describe the Calculus of Looping Sequences (CLS) which is suitable for modeling microbiological systems and their evolution. We present two extensions, CLS with links (LCLS) and Stochastic CLS. LCLS simplifies the description of protein interaction at a lower level of abstraction, namely at the domain level. Stochastic CLS allows us to describe quantitative aspects of the modeled systems, such as the frequency of chemical reactions. As examples of application to real biological systems, we show the simulation of the activity of the lactose operon in E.coli and the quorum sensing process in P.aeruginosa, both described with Stochastic CLS.