Melon™ Gel Monoclonal IgG Purification Kit
Melon™ Gel Monoclonal IgG Purification Kit
Thermo Scientific™

Melon™ Gel Monoclonal IgG Purification Kit

The Thermo Scientific Melon Gel Monoclonal IgG Purification Kit is a high-yield, mild purification system for monoclonal antibodies from ascitesRead more
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Catalog number 45214
Price (USD)
1,984.00
Each
Add to cart
Price (USD)
1,984.00
Each
Add to cart
The Thermo Scientific Melon Gel Monoclonal IgG Purification Kit is a high-yield, mild purification system for monoclonal antibodies from ascites or hybridoma cell culture supernatant, or for large scale antibody purification from serum.

Features of the Melon Gel Monoclonal IgG Purification Kit:

Fast—purify antibodies in half the time of required for Protein A or G
Efficient—recovery and purity is often better than Protein A or G purification
Robust—effective for subclasses of IgG that bind poorly to Protein A or G
Gentle—antibodies retain activity because they are not exposed to denaturing conditions
Regenerable—support can be regenerated and used for up to 6 purifications
Compatible—amine-free buffer does not require removal or neutralization
Flexible—accommodates a broad range of sample volumes and processing vessels; cell culture: spin columns can be used for purifications < 30 mL of supernatant; filter flasks can be used for bulk processing of samples up to 1L. Ascites fluid: spin columns can be used for purifications up to 6 mL

Unlike typical bind-and-elute affinity methods, Melon Gel Purification is based on the binding of non-IgG proteins from a prepared supernatant or ascites sample, thereby allowing the pure IgG to be recovered in the flow-through (non-bound) fraction. Antibodies are recovered ready for use in assays or subsequent conjugation and other modification steps. There is no need to neutralize or desalt to mitigate the effects of harsh elution buffers. Melon Gel Purification saves time compared to classical Protein A or Protein G methods without compromising the quality of the antibody.

Specialized protocols for culture supernatant and ascites fluid:
The instructions for the Melon Gel Monoclonal IgG Purification include separate protocols for cell culture supernatant samples and ascites fluid samples. For the latter protocol, Ascites Conditioning Reagent (Part No. 45219) is required.

Other IgG purification kits and package sizes of Melon Gel Resin are available. All sizes use the same formulation of Melon Gel Resin, Purification Buffer and Regenerant Solution but have slightly different protocols based on the most common application for each package size. Components of any package size can be used at an appropriate scale with any one of the procedures.

Related Products
Ascites Conditioning Reagent for Melon™ Gel Monoclonal IgG Purification Kit
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Product TypeIgG Purification Kit
Product LineMelon™
Column TypeProprietary Resin, Affinity
FormatKit, Bottle
Stationary PhaseProprietary Ligand
Purification TargetIgG Antibodies
DescriptionMelon Gel Monoclonal IgG Purification Kit
Quantity200 mL
Unit SizeEach
Contents & Storage
Sufficient For: IgG purification from up to 1 L of cell culture supernatant or up to 200 mL of ascites fluid
• Melon Gel Support, 200 mL
• Melon Gel Purification Buffer (dry mix to make 100X), 1 L
• Melon Gel Regenerant (dry mix to make 5X), 1 L

Store at 4°C

Frequently asked questions (FAQs)

How can I determine when the Melon Gel Support is saturated?

For serum, a volume double the Melon Gel Support volume is the maximum amount that can be processed at one time. To determine if too much sample was processed, examine the purified IgG by SDS-PAGE for additional protein bands.

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

Can Melon Gel purify chicken IgY?

No. Thermo Scientific Thiophilic Adsorbent (Cat. Nos. 20500 and 44916) can be used to purify IgY from serum. The Chicken IgY Purification Kit (Cat. No. 44918) can be used to purify IgY from egg yolks.

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

Is the Melon Gel IgG Spin Purification Kit (Cat. No. 45206) a viable alternative to using traditional Protein A and Protein G methods for purification of IgG from serum?

Yes. With the Melon Gel IgG Spin Purification Kit, 90% recovery of IgG with greater than 80% purity are typically observed for a single purification. Although IgA and IgM may be present along with the purified IgG, a high percentage (> 80%) of IgA and IgM is retained on the gel support. This high binding of IgA and IgM to the gel support combined with the fact that IgA and IgM are present in low abundance in serum results in low levels of these antibody molecules in the purified IgG. Here are other advantages of using the Melon Gel IgG Spin Purification Kit over traditional Protein A or Protein G methods:
-Simple, one-step protocol - IgG purification with Melon Gel Resin does not involve binding, washing, and multiple elution steps required by Protein A and Protein G
-Rapid purification - antibody purification from serum is four to six times faster than Protein A or G methods
-Minimal dilution - reduced need to concentrate antibody before storage or use
-Robust purification - Melon Gel IgG Purification Kits work with a wide range of antibodies including many that do not purify well on Protein A or Protein G
-Gentle purification - No harsh antibody elution conditions helps retain IgG activity
-Regenerable support - Melon Gel Resin can be used for multiple antibody purifications

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

How many times can I reuse the Melon Gel Support?

The Melon Gel Support can be used up to three times. Performing an ammonium sulfate precipitation on serum samples containing large amounts of non-antibody protein before purification improves purification efficiency and increases reusability.

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

After Melon Gel purification, must I desalt or dialyze the purified antibody before using the Thermo Scientific Direct IP Kit (Cat. No. 26148)?

No. However, researchers may want to add an equal volume of binding buffer to elevate the pH towards neutral.

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.