Imaging Intracellular Fluorescent Proteins at Nanometer Resolution

Autor: Michael W. Davidson, O. Wolf Lindwasser, Rachid Sougrat, Eric Betzig, Juan S. Bonifacino, George H. Patterson, Jennifer Lippincott-Schwartz, Harald F. Hess, Scott G. Olenych
Rok vydání: 2006
Předmět:
Zdroj: Science. 313:1642-1645
ISSN: 1095-9203
0036-8075
Popis: We introduce a method for optically imaging intracellular proteins at nanometer spatial resolution. Numerous sparse subsets of photoactivatable fluorescent protein molecules were activated, localized (to ∼2 to 25 nanometers), and then bleached. The aggregate position information from all subsets was then assembled into a superresolution image. We used this method—termed photoactivated localization microscopy—to image specific target proteins in thin sections of lysosomes and mitochondria; in fixed whole cells, we imaged vinculin at focal adhesions, actin within a lamellipodium, and the distribution of the retroviral protein Gag at the plasma membrane.
Databáze: OpenAIRE