Observation of TOM20 localization in HeLa cell

  • Summary

EM2020-03E

After making TOM20 antibody, a mitochondria marker reacted, secondary antibodies labelled with gold nano particles were made reacted.
Then, the particle diameter of a gold nano particle was sensitized to 20 nm or larger by gold sensitization. The gold particles of 20 nm or larger emit scattering light in orange due to surface plasmon resonance (SPR) when its dark field is observed with a light microscope (LM). When the same field of view is observed by TEM, mitochondria can be observed. The result shows that TOM20 are localized on the mitochondria film since gold nano particles are localized on the mitochondria film.

Observation of TOM20 localization in HeLa cell

Sample HeLa cells, primary antibody: rabbit anti-TOM20 antibody, second antibody: goat anti-rabbit Fab', nanogold
Imaging device Dark field image: Nikon Eclipse LV100DA-U, 60x TEM: JEM-1400Flash

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