نتایج جستجو برای: examined by fluorescence microscopy

تعداد نتایج: 7270528  

Journal: :The Journal of Cell Biology 1993
A B Verkhovsky G G Borisy

The organization of myosin in the fibroblast lamellum was studied by correlative fluorescence and electron microscopy after a novel procedure to reveal its underlying morphology. An X-rhodamine analog of conventional smooth muscle myosin (myosin II) that colocalized after microinjection with endogenous myosin was used to trace myosin distribution in living fibroblasts. Then, the same cells were...

Arash Memarnejadian, Mahdieh Soezi, Mohammad Reza Aghasadeghi, Rezvan Zabihollahi, Saeed Aminzadeh, Safieh Amini, Seyed Mehdi Sadat, Soheila Hekmat,

Background: The rapid increase of HIV-1 strains resistant to current antiretroviral drugs is a challenge for successful AIDS therapy. This necessitates the development of novel drugs, and to this end, availability of screening systems for in vitro drug discovery is a priority. Herein, we report the modification of a previously developed system for increased sensitivity, ease of use, and cost-ef...

Journal: :Infection and immunity 1998
A K Lee S Falkow

The green fluorescent protein (GFP) gene was expressed on a plasmid in B. henselae, and GFP-expressing bacteria were visualized by fluorescence microscopy. HEp-2 cells infected with GFP-expressing bacteria were separated from uninfected cells with a fluorescence activated cell sorter. Promoter fusions of B. henselae chromosomal DNA to gfp were examined by flow cytometry, and a B. henselae groEL...

Journal: :International Journal of Molecular Sciences 2008
Kathryn Schallhorn Mickey Kim Pu Chun Ke

The structural damage of double-stranded DNA under UV radiation was examined using single-molecule fluorescence microscopy. Compared to undamaged DNA, the diffusion coefficient of lambda-DNA was significantly increased with 12 min or 20 min of radiation but remained unchanged for 40 min of exposure possibly due to strand crosslinking. The structural damage of DNA was further examined using tran...

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