Imperial College London
Alternate

DrRobertDickinson

Faculty of Medicine, Department of Surgery & Cancer

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 7633r.dickinson

 
 
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Location

 

Biophysics Group, Room 403Sir Ernst Chain BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Yip:2013:10.1038/nchembio.1340,
author = {Yip, GM and Chen, ZW and Edge, CJ and Smith, EH and Dickinson, R and Hohenester, E and Townsend, RR and Fuchs, K and Sieghart, W and Evers, AS and Franks, NP},
doi = {10.1038/nchembio.1340},
journal = {Nature Chemical Biology},
pages = {715--720},
title = {A propofol binding site on mammalian GABAA receptors identified by photolabeling},
url = {http://dx.doi.org/10.1038/nchembio.1340},
volume = {9},
year = {2013}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Propofol is the most important intravenous general anesthetic in current clinical use. It acts by potentiating GABAA (γ-aminobutyric acid type A) receptors, but where it binds to this receptor is not known and has been a matter of some debate. We synthesized a new propofol analog photolabeling reagent whose biological activity is very similar to that of propofol. We confirmed that this reagent labeled known propofol binding sites in human serum albumin that have been identified using X-ray crystallography. Using a combination of protiated and deuterated versions of the reagent to label mammalian receptors in intact membranes, we identified a new binding site for propofol in GABAA receptors consisting of both β3 homopentamers and α1β3 heteropentamers. The binding site is located within the β subunit at the interface between the transmembrane domains and the extracellular domain and lies close to known determinants of anesthetic sensitivity in the transmembrane segments TM1 and TM2.
AU  - Yip,GM
AU  - Chen,ZW
AU  - Edge,CJ
AU  - Smith,EH
AU  - Dickinson,R
AU  - Hohenester,E
AU  - Townsend,RR
AU  - Fuchs,K
AU  - Sieghart,W
AU  - Evers,AS
AU  - Franks,NP
DO  - 10.1038/nchembio.1340
EP  - 720
PY  - 2013///
SN  - 1552-4469
SP  - 715
TI  - A propofol binding site on mammalian GABAA receptors identified by photolabeling
T2  - Nature Chemical Biology
UR  - http://dx.doi.org/10.1038/nchembio.1340
UR  - http://hdl.handle.net/10044/1/32933
VL  - 9
ER  -
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