Know the Single-Receptor Sensing Limit? Think Again.

TitleKnow the Single-Receptor Sensing Limit? Think Again.
Publication TypeJournal Article
Year of Publication2016
AuthorsAquino, G, Wingreen, NS, Endres, RG
JournalJ Stat Phys
Date Published2016

<p>How cells reliably infer information about their environment is a fundamentally important question. While sensing and signaling generally start with cell-surface receptors, the degree of accuracy with which a cell can measure external ligand concentration with even the simplest device-a single receptor-is surprisingly hard to pin down. Recent studies provide conflicting results for the fundamental physical limits. Comparison is made difficult as different studies either suggest different readout mechanisms of the ligand-receptor occupancy, or differ on how ligand diffusion is implemented. Here we critically analyse these studies and present a unifying perspective on the limits of sensing, with wide-ranging biological implications.</p>

Alternate JournalJ Stat Phys
PubMed ID26941467
PubMed Central IDPMC4761375