Connectivity and expression in protein networks: Proteins in a complex are uniformly expressed

Shai Carmi*, Erez Y. Levanon, Shlomo Havlin, Eli Eisenberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We explore the interplay between the protein-protein interactions network and the expression of the interacting proteins. It is shown that interacting proteins are expressed in significantly more similar cellular concentrations. This is largely due to interacting pairs which are part of protein complexes. We solve a generic model of complex formation and show explicitly that complexes form most efficiently when their members have roughly the same concentrations. Therefore, the observed similarity in interacting protein concentrations could be attributed to optimization for efficiency of complex formation.

Original languageAmerican English
Article number031909
JournalPhysical Review E
Volume73
Issue number3
DOIs
StatePublished - 2006
Externally publishedYes

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