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Electrophoresis

ProtoLift Western Stripping Buffer

$39.00

Catalog number: EC-889
Size: 100 ml

  • Strip PVDF blots in 10 minutes
  • Contains zero harsh detergents
  • Non-acidic

Description

Catalog number: EC-889
Size: 100 ml

  • Strip PVDF blots in 10 minutes
  • Contains zero harsh detergents
  • Non-acidic
The ProtoLift Western Stripping Buffer is a more effective system for stripping your PVDF Western Blots.  Antibodies can be stripped from blots within 10 minutes.  Target proteins are not stripped from the membrane.  Furthermore, blots can be stripped with ProtoLift Western Stripping Buffer multiple times without loss of signal.  Note: ProtoLift Western Stripping Buffer is not recommended for nitrocellulose blots.

ProtoLift does not remove target proteins

A PVDF blot of 8 identical lanes of mouse liver extract was divided in half, and lanes 5-8 were incubated in ProtoLift according to the standard protocol (see Figure 1).  Both membranes were stained with Coomassie Blue to detect total protein levels.  No detectable difference was seen between the control and the membrane incubated in ProtoLift Western Stripping Buffer.
Figure 1: No detectable difference found between mouse liver extract lanes stripped with ProtoLift Western Stripping Buffer (Lanes 5-8) and control lanes (Lanes 1-4).

Figure 1: No detectable difference found between mouse liver extract lanes stripped with ProtoLift Western Stripping Buffer (Lanes 5-8) and control lanes (Lanes 1-4).

PVDF Blots can be stripped and reprobed multiple times with ProtoLift

A PVDF blot of mouse liver extract was probed for GAPDH, then stripped and reprobed 4 times (see Figure 2).  Panel A:  first probing, Panel B:  second probing, Panel C 4th probing.  All 4 probings produced identical signals.
Figure 2: Multiple strippings with ProtoLift Western Stripping Buffer cause minimal (if any) loss of detection.

Figure 2: Multiple strippings with ProtoLift Western Stripping Buffer cause minimal (if any) loss of detection.

Additional information

Weight 0.1 lbs

Protocol


Stripping Procedure
CAUTION: This procedure requires the use of mercaptoethanol, a hazardous substance. Work in a fume hood.
  1. Probe the membrane using your preferred protocol. (do not allow the membrane to dry before stripping).
  2. Rinse the membrane in two washes of PBS or TBS.
  3. Prepare a working ProtoLift Western Stripping Buffer solution by adding 2-mercaptoethanol to 0.7% (v/v). To prepare 10 ml of working solution, add 70μl mercaptoethanol to 10 ml ProtoLift stock solution.
  4. Place the membrane in a dish and add enough working solution to completely immerse the membrane. Alternatively the membrane can be sealed in a plastic bag with the working solution.
  5. Incubate at room temperature for 10 minutes with shaking. PVDF membranes will become transparent in the solution. This is normal and the membrane will return to its regular appearance after the stripping solution is removed.
  6. Wash the membrane three times for 10 minutes each with large volumes of PBS or TBS to remove the stripping solution and reducing agent.  The blot is now ready to be reprobed.

Safety Overview

Safety Summary (see MSDS for complete information before using product): 

Appearance and Odor
Odorless, colorless solution.

Safety and Precautionary Overview
Warning! Irritant
Harmful if swallowed
Causes skin irritation.
Causes serious eye irritation.
Harmful if inhaled.
Wear protective gloves/protective clothing/eye protection/face protection.
If on skin, wash with plenty of soap and water.
If in eyes, rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
Call a poison center or doctor/physician if you feel unwell.

Full MSDS Protocols

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