An integrated multi-wavelength microscope combining TIRFM and IRM modalities for imaging cellulases and other processive enzymes
Abstract: We describe a multimodal microscope for visualizing processive enzymes moving on immobilized substrates. The instrument combines Interference Reflection Microscopy (IRM) with multi-wavelength Total Internal Reflectance Fluorescence Microscopy (TIRFM). The microscope can localize quantum dots with a precision of 2.8 nm at 100 frames/s, and was used to image the dynamics of the cellulase, Cel7a interacting with surface-immobilized cellulose. The instrument, which was built with off-the-shelf components and is controlled by custom software, is suitable for tracking other degradative enzymes such as collagenases, as well as motor proteins moving along immobilized tracks.
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| Work Title | An integrated multi-wavelength microscope combining TIRFM and IRM modalities for imaging cellulases and other processive enzymes |
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| License | CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives) |
| Work Type | Dataset |
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| Publication Date | 2021 |
| DOI | doi:10.26207/0mnz-xj93 |
| Deposited | April 30, 2021 |
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