Linearity Range |
0.125 to 8 ng/mL |
Sensitivity |
LLOQ:0.125ng/ml |
Precision |
Intra-assay: CV ≤ 10%;
Inter-assay: CV ≤ 15% |
Accuracy |
80%-120% |
Standard |
3.2 µg/mL of Cas9 protein |
Suitable Sample Type |
cell lysates, viral vectors, and gene-editing reagents |
Specificity |
This kit is designed for the detection of a wide range of Cas9 proteins, including wild-type SpCas9, high-fidelity mutants (e.g., eSpCas9), and variants featuring nuclear localization signals (NLS) at the N-terminus, C-terminus, or both. |
Assay Temperature |
37°C |
Assay Time |
3 h |
Storage |
The unopened kit is stable for at least 12 months from the date of manufacture at 2°C to 8°C, and the opened kit is stable for up to 1 month from the date of opening at 2°C to 8°C. |
Kit Contents |
Component |
Quantity/Size |
Part No. |
Cas9 Capture Plate |
1 plate |
B2-80 |
Cas9 Standard Stock |
1 vial (50 μL) |
B2-10 |
Biotin Anti-Cas9 Antibody |
1 bottle (12 mL) |
B2-20 |
Streptavidin-HRP |
1 bottle (12 mL) |
B2-30 |
Sample Dilution Buffer |
1 bottle (60 mL) |
B2-60 |
20× Wash Solution |
1 bottle (60 mL) |
B-A1-71 |
TMB Solution |
1 bottle (12 mL) |
B-A1-40 |
Stop Solution |
1 bottle (6 mL) |
B-A1-50 |
Plate Sealer |
2 pieces |
/ |
|

Figure 1. Typical Cas9 standard curve fitted with a four-parameter logistic model.

Figure 2: Cas9 variants curves





For research use only. Not intended for human or animal clinical trials, therapeutic or diagnostic use.