Wet Transfer Using Trans-Blot Turbo Transfer System

Stanford University
Biochemistry
Senior Research Scientist

Overall

Performance

Ease-of-Optimization

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Company:

Bio-Rad

Product Name:

Trans-Blot Turbo Transfer System

Catalog Number:

1704150

The hedgehog signaling plays a critical role in embryonic development. It also controls adult tissue homeostasis and deregulation of this pathway results in basal cell carcinoma and medulloblastoma. A unique feature of this pathway is that it requires a tiny antenna like organelle called the primary cilium for signal transduction. My goal is to understand the molecular mechanism of hedgehog signal transduction at the primary cilium. This involves detecting protein-protein interactions of the pathway components, analysis of localization patterns during signal transduction, and transcriptional output measurements. The specific goal in this experiment is to analyze protein levels by Western Blotting. We had purchased this product based on the short-duration requirement for protein transfer to nitrocellulose/PVDF membrane during Western Blotting process.

Experimental Design and Results Summary

Application

Western Blotting

Starting Material

Whole cell lysates from NIH-3T3 cells

Protocol Overview

Clarified whole cell lysates (50 µg) were loaded on 8% Tris/Glycine gels and subjected to SDS-PAGE. Proteins were transferred onto nitrocellulose membrane using Trans-Blot Turbo transfer system following manufacturer's instructions. Nitrocellulose membrane, blotting paper, and transfer buffer used in this experiment were purchased from Bio-Rad.

Tips

Follow manufacturer's instructions!

Results Summary

In this experiment, the transfer efficiency of proteins ranging in molecular weight from 25 kDa to 200 kDa were tested. 10 min of transfer with Turbo system is sufficient to transfer ~60-80% of proteins below the molecular weight of 100 kDa (based on protein ladder). However, the transfer efficiency declines as the protein molecular weight increases. This problem is especially concerning when the high molecular weight protein levels are low relative to other proteins.

Features Summary

An good instrument for rapid transfer of proteins to nitrocellulose/PVDF membranes during Western Blotting process.

DOI or PMID #

N/A

Additional Notes

N/A

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Summary

The Good

Short-duration for transfer step and easy to use

The Bad

Might not be the best system for rapid transfer of poorly expressed high molecular weight proteins

The Bottom Line

A nice semi-dry rapid transfer system for rapid transfer of proteins to membranes during Western Blotting process.

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