SDS PAGE – gel electrophoresis

Get the electrophoretic pattern of your protein sample
Combine analysis with other protein services
Purify and prepare a complex sample for mass spectrometry

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Technical details, sample info, experts etc.

Do you need one- or two-dimensional gel electrophoresis?

According to the ICH Q6B (Test Procedures and Acceptance Criteria for Biotechnological/Biological Products) i...

Do you need one- or two-dimensional gel electrophoresis?

According to the ICH Q6B (Test Procedures and Acceptance Criteria for Biotechnological/Biological Products) it is required that you determine the electrophoretic pattern of your protein by 1D and 2D gel electrophoresis.

We offer to separate the proteins of your drug sample. This is done by either 1D PAGE or 2D PAGE (polyacrylamide gel electrophoresis). We use Coomassie, silver or fluorescent staining for visualization of all proteins in the sample.

Our gel electrophoresis service includes:

1D gel or 2D gel electrophoresis separation of your protein sample
Coomassie, silver or fluorescence staining of the proteins

You can order our 1D PAGE and 2D gel electrophoresis analysis in combination with many of our other services. Hence, you may wish to have a look at:

If you need more information before ordering, please send us a request.

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Services

1D PAGE Protein Separation

1D PAGE separation of proteins
1 run with 3 different loadings of 1, 10 and 20 ug
Mw 5-250 kDa approximately, NuPAGE 12% Bis-Tris gel
Coomassie staining

$1,680.00

Results in 10-20 days

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2D PAGE Protein Separation

2D PAGE separation of proteins, 2 gels loading 50 and 150 ug DS, IEF pH 3-10
Mw 10-120 kDa, NuPAGE 4-12% Bis-Tris gel
Coomassie or silver staining

$2,400.00

Results in 10-20 days

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More information

We would like to help you as much as possible with your project and therefore provide several kinds of customer support:

Download and links

Learn more in this protocol and blog posts:

Protocols for gel silver staining

Related blog posts:

Technical details

Introduction to 1D and 2D gel electrophoresis

1D gels:

Protein separation by 1D SDS-PAGE is performed using the NuPAGE pre-cast gel system from Thermo Scientific according to the manufacturer’s manual. The protein sample (5 – 20 ug) is dissolved in LDS sample buffer with DTT and heated (70 ^oC, 10 minutes), loaded onto the NuPAGE 12% Bis-Tris gel and separated with a MOPS/MES running buffer at 200V for 40-50 minutes. The gel is then stained by Coomassie brilliant Blue R250, or by Silver staining (Alphalyse procedure).

loading of 1d sds page for gel electrophoresis

1D page separation with PVDF blotting for N-terminal sequencing of different DS batches

2D gels:

2D-SDS PAGE is performed using IPG drystrips 7 cm, pH 3-10 for the first dimension isoelectric focusing, and NuPAGE pre-cast gel system from Invitrogen for the second dimension of Mw separation. The sample is purified/desalted using 2-D Clean-Up Kit (GE Healthcare). The purified sample is mixed with Destreak Rehydration solution with IPG-buffer prior isoelectric focusing. SeeBlue Plus2 Pre-Stained Standard (Invitrogen) is used as marker.

The isoelectric focusing is performed until approximately 8000 Vhrs
The second dimension is performed in NuPAGE precast 4-12% Bis-Tris zoom gels and proteins separated with a MOPS/MES running buffer at 200V for 40-50 minutes.

Finally, the 2D gels are stained by Coomassie brilliant Blue R250, or by Silver staining (Alphalyse procedure).

difference between 1d and 2d gel electrophoresis

Short 1D page, Long 1D page and 2D page

Sample preparation

Sample requirements

The samples delivered for both 1D and 2D gel electrophoresis should be delivered in-solution or as a solid material.

For 1D gels, we will typically load between 2 and 30 µg and for 2D gels between 30 and 300 µg.

Related services

You can combine this analysis with other analyses such as:

Meet the experts

For this type of analysis our experts include:

Thanh Ha Nguyen

MSc in Biotechnology

Martin Villadsen

MSc in Engineering within Medical Biotechnology

SDS PAGE – gel electrophoresis

Do you need one- or two-dimensional gel electrophoresis?

Do you need one- or two-dimensional gel electrophoresis?

Our gel electrophoresis service includes: