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Antibody–Oligonucleotide All-in-One™ Conjugation Kit
Description
The Antibody-Oligonucleotide All-in-One Conjugation Kit uses patented SoluLINK® bioconjugation technology to link an antibody to an oligonucleotide. A succinimidyl-4-formylbenzamide (S-4FB)-modified oligonucleotide and succinimidyl-6-hydrazino-nicotinamide (S-HyNic)-modified antibody form an antibody-oligonucleotide conjugate. This kit is specifically designed to conjugate 100 µg of antibody to any amino-modified oligonucleotide in the 20-80 nucleotide range.
Key Features:
- Any mammalian monoclonal or polyclonal IgG isotype antibody can be conjugated to the oligonucleotide and purified with approximately 4 hours of total hands-on time.
- SoluLINK bioconjugation technology forms a stable and UV-traceable bis-aryl hydrazone bond with measurable absorbance at 354 nm, which has a molar extinction coefficient of 29,000 L mol-1 cm-1.
- The conjugation reaction is spectrophotometrically quantifiable due to the formation of a chromophoric conjugate bond.
Specifications
| Conjugation Targets | Antibody |
|---|---|
| Label/Modifier Type | Oligonucleotide |
| Reactivity | Amine |
| Recommended Storage | 2° – 8°C – Do Not Freeze |
| Applications | Antibody Labeling, In Situ Proximity Ligation |
Kit Components
• S-HyNic (100 μg)
• Oligo Resuspension Solution (1 mL)
• 1X Modification Buffer (1.5 mL)
• Bead Wash Buffer A (5 mL)
• Bead Elution Buffer A (250 μL)
• Red Cap Spin Column (2)
• Yellow Cap Spin Column A (1)
• Blue Cap Spin Column D (2)
• Anhydrous DMF (1.5 mL)
• 2-Hydrazinopyridine (2-HP) Reagent (500 μL)
• Affinity Magnetic Beads (100 μL)
• 2 mL Collection Tubes (14)
• S-4FB (1 mg)
• Brown Cap Spin Column C (2)
Documents
- Concentration of Dilute Antibody Solutions
- User Guide
- Safety Data Sheet
- A-9202 Conjugation Calculator
- Troubleshooting Guide – Bioconjugation
- Bradford Assay Protocol
- Bioconjugation White Paper
- Download CoA
- Datasheet
Product FAQs
What are the differences between the Antibody-Oligonucleotide All-in-One Conjugation kit (A-9202) and the Protein-Oligo Conjugation kit (S-9011)?
The Antibody-Oligonucleotide All-in-One Conjugation Kit is specifically designed to conjugate 100 ug of antibody to any amino-modified oligonucleotide in the 20-60 nucleotide range. This kit includes purification, so the resulting conjugate is very pure.
The Protein-Oligonucleotide Conjugation Kit is a more general oligonucleotide conjugation kit, designed for proteins other than antibodies. It is, however, slightly more flexible in the amounts of protein and oligo that can be conjugated.
Citations
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Antibody-Oligonucleotide All-in-One Conjugation Kit
Overview of Conjugation
1) Conjugation Chemistry
The Antibody-Oligonucleotide All-in-One Conjugation kit uses the SoluLINK patented conjugation technology to link an antibody to an oligonucleotide, as illustrated in Figure 1. The first stage of the process begins with the labeling of a 3’ or 5’- amino-modified oligonucleotide withS-4FB. This amine-reactive NHS ester incorporates an aromatic aldehyde functional group, formylbenzamide (4FB), at the desired terminus of the oligonucleotide.
Figure 1. Reaction of a HyNic-modified IgG with a 4FB-modified oligo leads to the rapid formation of a stable antibody-oligonucleotide conjugate.
In stage two of the process, a polyclonal or monoclonal antibody (100 μg) is modified using the complementary linker S-HyNic. This NHS-ester reacts with lysine residues, incorporating HyNic functional groups (hydrazinonicotinamide) onto the antibody. In the third and final stage, the two modified biomolecules are mixed together in the presence of a reaction catalyst (aniline) to form the conjugate, after which purification is carried out using a magnetic affinity solid phase.
2) Conjugate Purification
Antibody-oligonucleotide conjugates produced with the All-in-One kit are ready to be used in the most demanding and sensitive of downstream applications. The kit delivers high-purity conjugate virtually free of residual antibody or oligonucleotide (>98%). Reaction conditions are optimized to convert nearly 100% of the antibody into conjugate, leaving only free, excess 4FB-oligo to be removed. Complete conversion of antibody to conjugate simplifies conjugate purification as illustrated in Figure 2. Antibody-oligonucleotide conjugate is purified to near homogeneity by selectively binding the conjugate to a magnetic affinity matrix, allowing excess 4FB-oligonucleotide to be washed away. Affinity-bound conjugate is then gently eluted from the matrix and buffer exchanged into long-term storage buffer. Antibody-oligonucleotide conjugates produced with this kit are stable for up to 1 year when kept at 4oC in storage buffer.
Figure 2. All-in-One conjugate purification strategy.
All-in-One Conjugation Overview
* 4FB MSR is an acronym for 4-formylbenzamide molar substitution ratio.
Figure 3. Stage 1 of the process illustrates the modification of an amino-oligonucleotide with the S-4FB linker.
Figure 4. Stage 2 of the process illustrates the modification of IgG using the S-HyNic linker.
Figure 5. Stage 3 of the process illustrates both the formation and purification of the conjugate.
Intellectual Property
SoluLINK® Bioconjugation For Research Use Only. Not for use in diagnostic procedures. For additional licensing restrictions, please see the license agreement at vectorlabs.com/solulink-research-license.
Products are for research use only, not for use in diagnostic or therapeutic procedures or for use in humans. Products are not for resale without express written permission of Seller. No license under any patent or other intellectual property right of Seller or its licensors is granted or implied by the purchase unless otherwise provided in writing.
TriLink does not warrant that the use or sale of the products delivered hereunder will not infringe the claims of any United States or other patents or patents pending covering the use of the product alone or in combination with other products or in the operation of any process. All and any use of TriLink product is the purchaser’s sole responsibility.