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Probing membrane proteins using atomic force microscopy

✍ Scribed by Guangyong Li; Ning Xi; Donna H. Wang

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
272 KB
Volume
97
Category
Article
ISSN
0730-2312

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✦ Synopsis

Abstract

To gain insights into how biological molecules function, advanced technologies enabling imaging, sensing, and actuating single molecules are required. The atomic force microscope (AFM) would be one of novel potential tools for these tasks. In this study, techniques and efforts using AFM to probe biomolecules are introduced and reviewed. The state‐of‐art techniques for characterizing specific single receptor using the functionalized AFM tip are discussed. An example of studying the angiotensin II type 1 (AT1) receptors expressed in sensory neuronal cells by AFM with a functionalized tip is given. Perspectives for identifying and characterizing specific individual membrane proteins using AFM in living cells are provided. Given that many diseases have their roots at the molecular scale and are best understood as a malfunctioning biological nanomachines, the prospects of these unique techniques in basic biomedical research or in clinical practice are beyond our imagination. J. Cell. Biochem. 97: 1191–1197, 2006. © 2006 Wiley‐Liss, Inc.

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