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Tris gels

Manufactured by Bio-Rad

Tris gels are a type of gel electrophoresis system used for the separation and analysis of proteins. They are composed of a polyacrylamide matrix with Tris-based buffer solutions. Tris gels provide a stable and consistent environment for the separation of protein samples based on their molecular weight.

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3 protocols using tris gels

1

Protein Separation and Detection via SDS-PAGE and Western Blotting

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Proteins were separated by SDS-PAGE on Tris gels (Bio-Rad) and were transferred onto PVDF membranes (Bio-Rad), as previously described (Bomberger et al., 2011 (link)). The following antibodies were used for protein detection: anti-ALIX (EMD Milllipore), anti-calnexin (Santa Cruz Biotechnology), anti-CD81 (Thermo Fisher), anti-Flotillin-1 (BD Biosciences), anti-ferritin (Abcam), anti-GM130 (BD Biosciences), anti-Hsp90 (Enzo Life Sciences), anti-lactoferrin (Santa Cruz Biotechnology), anti-MHC-I (LifeSpan Biosciences), anti-RSV (Meridian Life Science, Inc.), anti-transferrin (Santa Cruz Biotechnology), anti-Tsg101 (GeneTex). Secondary antibodies were goat anti-mouse, goat anti-rabbit, and rat anti-goat conjugated to HRP (Bio-Rad).
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2

Protein Separation and Detection via SDS-PAGE and Western Blotting

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Proteins were separated by SDS-PAGE on Tris gels (Bio-Rad) and were transferred onto PVDF membranes (Bio-Rad), as previously described (Bomberger et al., 2011 (link)). The following antibodies were used for protein detection: anti-ALIX (EMD Milllipore), anti-calnexin (Santa Cruz Biotechnology), anti-CD81 (Thermo Fisher), anti-Flotillin-1 (BD Biosciences), anti-ferritin (Abcam), anti-GM130 (BD Biosciences), anti-Hsp90 (Enzo Life Sciences), anti-lactoferrin (Santa Cruz Biotechnology), anti-MHC-I (LifeSpan Biosciences), anti-RSV (Meridian Life Science, Inc.), anti-transferrin (Santa Cruz Biotechnology), anti-Tsg101 (GeneTex). Secondary antibodies were goat anti-mouse, goat anti-rabbit, and rat anti-goat conjugated to HRP (Bio-Rad).
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3

Isolation and Characterization of Membrane Vesicles

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CPE-treated claudin-4 transfectant or Caco-2 cell cultures were centrifuged at 2, 000 × g for 3 min, and those supernatants were subjected to sequential centrifugation (30 min at 10,000 × g to collect large membrane vesicles and then 90 min at 100,000 × g to collect small membrane vesicles [49 (link), 50 (link)]). Pelleted membrane vesicles resuspended back to natural (1×) concentrations, or supernatant fractions from centrifugations, were applied to parent cells for MTT cytotoxicity testing or Western blotted with a cadherin antibody (Cell Signaling Technology, Inc.) to validate vesicle depletion from supernatants. For cadherin Western blots, equal amounts of protein were separated by SDS-PAGE on Tris gels (Bio-Rad) and transferred to a polyvinylidene difluoride (PVDF) membrane.
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