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) | 





