Format

Send to:

Choose Destination
See comment in PubMed Commons below
Biophys J. 2008 Mar 15;94(6):2017-26. Epub 2007 Dec 7.

Mathematical analysis and quantification of fluorescent proteins as transcriptional reporters.

Author information

  • 1Department of Biomedical Engineering, Center for BioDynamics, Boston University, Boston, Massachusetts 02215, USA.

Abstract

Fluorescent proteins are often used as reporters of transcriptional activity. Here we present a mathematical characterization of a novel fluorescent reporter that was recently engineered to have a short half-life (approximately 12 min). The advantage of this destabilized protein is that it can track the transient transcriptional response often exhibited by signaling pathways. Our mathematical model takes into account the maturation time and half-life of the fluorescent protein. We demonstrate that our characterization allows transient transcript profiles to be inferred from fluorescence data. We also investigate a stochastic version of the model. Our analysis reveals that fluorescence measurements can both underestimate and overestimate fluctuations in protein levels that arise from the stochastic nature of biochemical reactions.

PMID:
18065460
[PubMed - indexed for MEDLINE]
PMCID:
PMC2257896
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for PubMed Central
    Loading ...
    Write to the Help Desk