Related Experiment Videos
Photoincorporation of fluorescent probe into GroEL: defining site of interaction
J W Seale1, B T Brazil, P M Horowitz
1Department of Biochemistry, University of Texas Health Science Center at San Antonio 78284-7760, USA.
Methods in Enzymology
|April 16, 1998
Abstract:
We have elucidated conditions for the covalent incorporation of a nonspecific hydrophobic probe, bisANS, into various proteins. Using this method, we are able to map hydrophobic surfaces in proteins. In addition, we have shown that for GroEL, we are able to use the fluorescence of the incorporated bisANS to monitor conformational changes in a defined region of the protein in response to various effectors. This method should be useful for studying both protein structure and dynamics.