![]() Other Issues: |
October 1997; 52 (4)
[Index by Author]
[Cover Caption]
|
||||||
About the cover: Rapid agonist-induced sequestration of a
GFP-tagged
2-adrenergic receptor. A fusion protein was constructed that consisted of the S65T mutant of green fluorescent protein (GFP)
attached to the carboxyl terminus of the
2-adrenergic receptor. The
GFP tag did not interfere with ligand recognition, G protein coupling
or internalization. Left, when expressed in HEK 293 cells, receptor is distributed diffusely over the surface membrane.
Right, 5 min after exposure to 10 µM
isoproterenol, receptors are internalized within endosomal vesicular
membranes. The left and right panels are two
different cells representative of control and agonist-treated populations. From Barak, L. S., S. S. G. Ferguson, J. Zhang, C. Martenson, T. Meyer, and M. C. Caron. Internal trafficking and surface
mobility of a functionally intact
2-adrenergic receptor-green fluorescent protein conjugate. Mol. Pharmacol.
51:177-184 (1997).