Display Settings:

Format

Send to:

Choose Destination
We are sorry, but NCBI web applications do not support your browser and may not function properly. More information
Antioxid Redox Signal. 2012 Aug 1;17(3):505-12. doi: 10.1089/ars.2012.4574. Epub 2012 Apr 10.

Can we see PIP(3) and hydrogen peroxide with a single probe?

Author information

  • 1Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.

Abstract

A genetically encoded sensor for parallel measurements of phosphatidylinositol 3-kinase activity and hydrogen peroxide (H(2)O(2)) levels (termed PIP-SHOW) was developed. Upon elevation of local phosphatidylinositol 3,4,5-trisphosphate (PIP(3)) concentration, the sensor translocates from the cytosol to the plasma membrane, while a ratiometric excitation change rapidly and simultaneously reports changes in the concentration of H(2)O(2). The dynamics of PIP(3) and H(2)O(2) generation were monitored in platelet-derived growth factor-stimulated fibroblasts and in T-lymphocytes after formation of an immunological synapse. We suggest that PIP-SHOW can serve as a prototype for many fluorescent sensors with combined readouts.

PMID:
22369174
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Mary Ann Liebert, Inc.
    Loading ...
    Write to the Help Desk