PUBLICATION
Small-molecule hydrophobic tagging-induced degradation of HaloTag fusion proteins
- Authors
- Neklesa, T.K., Tae, H.S., Schneekloth, A.R., Stulberg, M.J., Corson, T.W., Sundberg, T.B., Raina, K., Holley, S.A., and Crews, C.M.
- ID
- ZDB-PUB-110713-11
- Date
- 2011
- Source
- Nature Chemical Biology 7(8): 538-43 (Journal)
- Registered Authors
- Holley, Scott
- Keywords
- none
- MeSH Terms
-
- Animals
- Biosensing Techniques/methods*
- Cell Line
- Fluorescent Dyes/chemistry*
- Humans
- Hydrophobic and Hydrophilic Interactions
- Luminescent Proteins/chemistry
- Mice
- Molecular Structure
- Recombinant Proteins
- Sensitivity and Specificity
- Staining and Labeling
- Zebrafish
- PubMed
- 21725302 Full text @ Nat. Chem. Biol.
Citation
Neklesa, T.K., Tae, H.S., Schneekloth, A.R., Stulberg, M.J., Corson, T.W., Sundberg, T.B., Raina, K., Holley, S.A., and Crews, C.M. (2011) Small-molecule hydrophobic tagging-induced degradation of HaloTag fusion proteins. Nature Chemical Biology. 7(8):538-43.
Abstract
The ability to regulate any protein of interest in living systems with small molecules remains a challenge. We hypothesized that appending a hydrophobic moiety to the surface of a protein would mimic the partially denatured state of the protein, thus engaging the cellular quality control machinery to induce its proteasomal degradation. We designed and synthesized bifunctional small molecules to bind a bacterial dehalogenase (the HaloTag protein) and present a hydrophobic group on its surface. Hydrophobic tagging of the HaloTag protein with an adamantyl moiety induced the degradation of cytosolic, isoprenylated and transmembrane HaloTag fusion proteins in cell culture. We demonstrated the in vivo utility of hydrophobic tagging by degrading proteins expressed in zebrafish embryos and by inhibiting Hras1G12V-driven tumor progression in mice. Therefore, hydrophobic tagging of HaloTag fusion proteins affords small-molecule control over any protein of interest, making it an ideal system for validating potential drug targets in disease models.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping