Validation Data Gallery
Product Information
Nano-Secondary® anti-human IgG, recombinant VHH, is a human IgG-specific (IgG1, IgG2, IgG3, IgG4) antibody. This secondary antibody product consists of a Nanobody that binds to the Fc-domain of human IgG with high affinity & specificity.
| Description | Nano-Secondary® alpaca anti-human IgG, Fc-specific recombinant VHH reagent uses a novel class of human IgG-specific antibodies. This secondary antibody product consists of a Nanobody that binds to human IgGs (IgG1, IgG2, IgG3, IgG4) with high affinity & specificity. Due to their small size, Nano-Secondary reagents provide enhanced image resolution. No cross-reactivity against serum proteins from other species apart from slight reactivity to macaque serum, details see below. | 
| Applications | IF, FC | 
| Host | Alpaca | 
| Species Reactivity | Reactivity: human IgG1, IgG2, IgG3, IgG4, Fc-fragment of human IgG, including wt, PGLALA and PALALA mutations. Slight reactivity to macaque serum. No cross-reactivity: human IgA/IgM/IgE, serum proteins from goat, guinea pig, mouse rabbit, rat, sheep. | 
| Target/Specificity | Fc-fragment of human IgG (IgG1, IgG2, IgG3, IgG4) | 
| Physical State | Liquid | 
| Conjugate | CoraLite® Plus 750 | 
| Suggested Dilution | Immunofluorescence 1:500 - 1:1000 Flow cytometry: 1µL per 1x106 cells | 
| Purification Method | Recombinant expression, affinity purification IMAC | 
| Type | Secondary Nanobody | 
| Class | Recombinant | 
| Format | Purified human IgG | 
| Cross-reactivity | No cross-reactivity to human IgA/IgM/IgE, and goat, guinea pig, mouse, rabbit, rat, and sheep serum. Shows slight cross-reactivity to macaque serum. | 
| Immunogen | Purified human IgG | 
| Clonality | Monoclonal Nanobody | 
| Clones | CTK0117 (VHH1118) | 
| Affinity (KD) | < 10 pM | 
| RRID | AB_3075305 | 
| Excitation / Emission | Excitation max: 755 nm, Emission max: 780 nm | 
| Storage Buffer | 10 mM HEPES pH 7.0, 500 mM NaCl, 5 mM EDTA, Preservative: 0.09 % Sodium azide | 
| Storage Condition | Shipped at ambient temperature. Store at +4°C short term or -20°C long term. Stable for 1 year at -20°C. | 
| 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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| shuGCL750-2_SDS_Nano-Secondary® alpaca anti-human IgG, recombinant VHH, CoraLite® Plus 750 [CTK0117] (EN) | 
| Datasheet | 
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| Nano-Secondary® anti-human IgG, recombinant VHH, CoraLite® Plus 750 [CTK0117] Datasheet | 
| Brochure | 
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| Chromotek nanobodies brochure (PDF) | 
| Application note | 
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| Blocking recommendation for immunostaining with Nano-Secondaries (PDF) | 
| One-step Incubation with Nano-Secondaries (PDF) | 
![Live A431 cells were incubated with anti-human EGFR (Cetuximab biosimilar) followed by Nano-Secondary® alpaca anti-human IgG, recombinant VHH, CoraLite® Plus 750 [CTK0117] (shuGCL750-2, gray). Cells were fixed and nuclei were stained with DAPI (blue). Epifluorescence images were acquired with a 40x objective and post-processed. Live A431 cells were incubated with anti-human EGFR (Cetuximab biosimilar) followed by Nano-Secondary® alpaca anti-human IgG, recombinant VHH, CoraLite® Plus 750 [CTK0117] (shuGCL750-2, gray). Cells were fixed and nuclei were stained with DAPI (blue). Epifluorescence images were acquired with a 40x objective and post-processed.](https://www.ptglab.com/products/pictures/Result-shuGCL750-2.jpg)
![Immunofluorescence analysis of transgenic HeLa cells stably expressing H2B-myc. PFA-fixed cells were stained with anti-c-myc tag antibody and Nano-Secondary® alpaca anti-human IgG, recombinant VHH, CoraLite® Plus 750 [CTK0117] (shuGCL750-2, magenta). Immunofluorescence analysis of transgenic HeLa cells stably expressing H2B-myc. PFA-fixed cells were stained with anti-c-myc tag antibody and Nano-Secondary® alpaca anti-human IgG, recombinant VHH, CoraLite® Plus 750 [CTK0117] (shuGCL750-2, magenta).](https://www.ptglab.com/products/pictures/Result-shuGCL750-2_20231123153921687.jpg)

