Hemagglutinin-catalyzed cell-cell fusion: kinetics of initial pore formation from video rate, multi-wavelength fluorescence microscopy

Morris, Stephen J. ; Howard, Daniel E. ; Chang, Teng H. ; Sarkar, Debi P. ; Blumenthal, Robert (1995) Hemagglutinin-catalyzed cell-cell fusion: kinetics of initial pore formation from video rate, multi-wavelength fluorescence microscopy Microscopy and Microanalysis, 1 . pp. 48-54. ISSN 1431-9276

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Official URL: http://journals.cambridge.org/action/displayAbstra...

Related URL: http://dx.doi.org/10.1017/S1431927695110478

Abstract

Cell-cell fusion induced by the hemagglutinin (HA) spike-glycoprotein of influenza virus has been studied extensively using transfected cells expressing the protein. The initial fusion event is the formation of a small pore connecting the two cells. Its appearance has been measured by sudden changes in capacitance by whole cell patch clamp and more recently by the sudden change in the fluorescence of a possibly potential-sensitive fluorophore. Using a new design of fluorescence video microscopy capable of capturing multiple images at differing wavelengths of light simultaneously at video rates, this fluorescence event is shown to follow exponential kinetics, with a life time, [tau], of approximately 350 ms.

Item Type:Article
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ID Code:53406
Deposited On:08 Aug 2011 12:16
Last Modified:08 Aug 2011 12:16

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