Validation Data Gallery
Product Information
The Nano-CaptureLigand® mouse IgG2a captures and immobilizes mouse IgG2a antibodies and Fc-fragments to avidin/streptavidin coated surfaces used in BLI, SPR, and ELISA assays. It consists of a biotinylated Nanobody that specifically binds to the mouse IgG2a subclass with high affinity and in a site-directed manner.
| Description | The next level of antibody immobilization to BLI and SPR biosensors:
• Gentle, site-directed and Fc-specific immobilization of mouse IgG2a antibodies and Fc-fragments to streptavidin coated biosensors without biotinylation of the antibody • Compatible to surface plasmon resonance (SPR) and biolayer interferometry (BLI) assays (e.g. FortéBio Octet® systems) • High affinity for stable baseline without significant dissociation • >10x regeneration for multiple reuse • High specificity enables mouse IgG2a antibody discovery and screening in crude liquids like hybridoma supernatant, serum, and plasma samples |
| Applications | BLI, SPR, ELISA |
| Host | Alpaca |
| Reactivity | Fc-fragment of mouse IgG2a No cross-reactivity to mouse IgG1, Ig2b, IgG3; human IgG1, IgG2, IgG3, IgG4, IgA; rat IgG1, IgG2a, IgG2b; sera from goat, human, macaque (cynomolgus monkey), sheep Cross-reactivity to mouse IgG2c |
| Specificity/Target | Fc-fragment of mouse IgG2a |
| Physical State | Liquid |
| Conjugate | Biotin |
| Purification Method | Recombinant expression, affinity purification IMAC |
| Type | Secondary Nanobody |
| Class | Recombinant |
| Format | Alpaca single domain antibody, monovalent |
| Cross-reactivity | No cross-reactivity to mouse IgG1, Ig2b, IgG3; human IgG1, IgG2, IgG3, IgG4, IgA; rat IgG1, IgG2a, IgG2b; sera from goat, human, macaque (cynomolgus monkey), sheep Cross-reactivity to mouse IgG2c |
| Clonality | Monoclonal |
| Clones | CTK0108 (VHH0249) |
| Affinity (KD) | KD=1.5 nM Apparent affinity may be higher for full IgGs due to avidity effects (1 antibody captured by 2 Nanobodies). |
| RRID | AB_2848188 |
| Storage Buffer | 25 mM TAPS pH 8.5, 500 mM NaCl, 5 mM EDTA, Preservative: 0.09 % sodium azide |
| Storage Condition | Shipped at ambient temperature. Upon receipt store at +4°C/+40°F. Optional: Aliquot upon arrival and store at -20°C/-4°F |
| Size | 10 μL; 100 μL |
| Note | This product is for research use only, not for diagnostic or therapeutic use |
Documentation
| SDS |
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| smsG2aB-1_SDS_Nano-CaptureLigand® mouse IgG2a, Fc-specific VHH, biotinylated (EN) |
| Datasheet |
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| Nano-CaptureLigand®, anti-mouse IgG2a recombinant VHH, biotinylated Datasheet |
| Application Note |
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| Nano-CaptureLigands for COVID-19 antibodies capture in BLI binding kinetics assay (PDF) |
| Nano-CaptureLigand Specificity |
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| Nano-CaptureLigands specificity overview (PDF) |
| Comparison of Immobilization Methods |
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| Comparison of ELISA immobilization methods (PDF) |
| Comparison of BLI/SPR immobilization methods (PDF) |




