NuPAGE™ MOPS SDS Running Buffer (20X)

Name: NuPAGE™ MOPS SDS Running Buffer (20X)
SKU: NP0001

NuPAGE MOPS SDS Running Buffer (20X) is formulated for running proteins on NuPAGE Bis-Tris gels. It is recommended for separatingRead more

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Catalog Number	Quantity
NP0001	500 mL
NP000102	5 L

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Catalog number NP0001

Price (USD)

Quantity:

500 mL

NuPAGE MOPS SDS Running Buffer (20X) is formulated for running proteins on NuPAGE Bis-Tris gels. It is recommended for separating medium- to large-sized proteins.

Use the right buffer to optimize protein separations
NuPAGE MES SDS Running Buffer and NuPAGE MOPS SDS Running Buffer can both be used with NuPAGE Bis-Tris gels. MES has a lower pKa than MOPS, making the MES SDS Running Buffer faster than MOPS SDS running buffers. The difference in ion migration affects stacking and results in a difference in protein separation range between these buffers. Use of MOPS buffer allows proteins to run slower than when using MES buffer.

Compare protein migration patterns using MES and MOPs on NuPAGE Bis-Tris gels

See all available buffers and reagents available for SDS-PAGE

For Research Use Only. Not for use in diagnostic procedures.

Specifications

Chemical Name or MaterialRunning Buffer

Formulation50 mM MOPS, 50 mM Tris Base, 0.1% SDS, 1 mM EDTA, pH 7.7, 0.01-0.09% N,N-dimethylformamide

Recommended StorageContents: NuPAGE™ MOPS SDS Running Buffer (20X)
Storage: +4°C to 25°C

Concentration20X

Physical FormLiquid

Product LineNuPAGE

Quantity500 mL

pH7.7

Unit SizeEach

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Frequently asked questions (FAQs)

Can I prepare my protein sample with the reducing agent and store it for future use?

DTT is not stable, so it must be added and the reduction performed just prior to loading your samples.

Find additional tips, troubleshooting help, and resources within our Protein Gel 1D Electrophoresis Support Center.

My LDS or SDS sample buffer precipitates when stored at 4 degrees C. Can I warm it up? Can I store it at room temperature?

Precipitation of the LDS or SDS at 4 degrees C is normal. Bring the buffer to room temperature and mix until the LDS/SDS goes into solution. If you do not want to wait for it to dissolve, you can store the sample buffer at room temperature.

Find additional tips, troubleshooting help, and resources within our Protein Gel 1D Electrophoresis Support Center.

How are Bolt gels different than NuPAGE gels?

While they are both Bis-Tris based gels, the chemistries are very different since Bolt gels are optimized for western blotting. Another key difference is the wedge well design of the Bolt gels, which allows larger sample volumes to be loaded.

Find additional tips, troubleshooting help, and resources within our Protein Gel 1D Electrophoresis Support Center.

What is the advantage of NuPAGE Gels over regular Tris-Glycine gels?

The neutral operating pH of the NuPAGE Gels and buffers provides following advantages over the Laemmli system:
-Longer shelf life of 8-12 months due to improved gel stability
-Improved protein stability during electrophoresis at neutral pH resulting in sharper band resolution and accurate results (Moos et al, 1998)
-Complete reduction of disulfides under mild heating conditions (70 degrees C for 10 min) and absence of cleavage of asp-pro bonds using the NuPAGE LDS Sample buffer (pH > 7.0 at 70 degrees C)
-Reduced state of the proteins maintained during electrophoresis and blotting of the proteins by the NuPAGE Antioxidant
Please refer to the following paper: Moos M Jr, Nguyen NY, Liu TY (1988) Reproducible High Yield Sequencing of Proteins Electrophoretically Separated and Transferred to an Inert Support. J Biol Chem 263:6005-6008.

Find additional tips, troubleshooting help, and resources within our Protein Gel 1D Electrophoresis Support Center.

Can I use NuPAGE Bis-Tris gels with NuPAGE MOPS or MES Running Buffer prepared without SDS for electrophoresis under native conditions?

We do not recommend using NuPAGE Bis-Tris gels with NuPAGE MOPS or MES Running Buffer prepared without SDS for electrophoresis under native conditions. This buffer system may generate excessive heat, resulting in poor band resolution. Further, the protein of interest may not migrate very well in a neutral pH environment if it is not charged.

Find additional tips, troubleshooting help, and resources within our Protein Electrophoresis and Western Blotting Support Center.

View all NuPAGE™ MOPS SDS Running Buffer (20X) FAQs