Enhanced in vivo imaging of metabolically biotinylated cell surface reporters
View/ Open
Author
Niers, Johanna M.
Chen, John W.
Weissleder, Ralph
Tannous, Bakhos A.
Published Version
https://doi.org/10.1021/ac102758mMetadata
Show full item recordCitation
Niers, Johanna M., John W Chen, Ralph Weissleder, and Bakhos A. Tannous. 2011. “Enhanced in Vivo Imaging of Metabolically Biotinylated Cell Surface Reporters.” Analytical Chemistry 83 (3): 994–99. https://doi.org/10.1021/ac102758m.Abstract
Metabolic biotinylation of intracellular and secreted proteins as well as surface receptors in mammalian cells provides a versatile way to monitor gene expression; to purify and target viral vectors; to monitor cell and tumor distribution in real time in vivo; to label cells for isolation; and to tag proteins for purification, localization, and trafficking. Here, we show that metabolic biotinylation of proteins fused to the bacterial biotin acceptor peptides (BAP) varies among different mammalian cell types and can be enhanced by over 10-fold upon overexpression Of the bacterial biotin ligase directed to the same cellular compartment as the fusion protein. We also show that in vivo imaging of metabolically biotinylated cell surface receptors using streptavidin conjugates is significantly enhanced upon coexpression of bacterial biotin ligase in the secretory pathway. These findings have practical applications in designing more efficient targeting and imaging strategies.Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAACitable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:41384232
Collections
- HMS Scholarly Articles [17875]
Contact administrator regarding this item (to report mistakes or request changes)