#C1208N 3CLPro T21I + E166V Expression Kit
$395.00 – $795.00
Express 3CLpro with the T21I + E166V mutation in mammalian cells including HEK293, A549, and many more. Use alongside other 3CLpro mutant proteases and our 3CLglow biosensor assays to test 3CLpro inhibitor efficacy against a panel of mutations in the protease.
3CLpro (Mpro) T21I + E166V mutation Expression Kit
In a recombinant SARS-COV-2 assay conducted in huh7-ACE2 cells, the E166V mutation alone displayed a 100-fold IC50 resistance to nirmatrelvir, although it led to reduced fitness (Iketani et al. 2023). However, when combined with the T21I mutation, virus replication was restored (Iketani et al. 2023) resulting in an 83-fold change in nirmatrelvir resistance (Iketani et al. 2023). This T21I, E166V mutation has been identified in patients and reported to the GISAID database (Shu and McCauley 2017; Iketani et al. 2023). Pfizer also reported an 83-fold increase in EC50 to nirmatrelvir using a biochemical assay (Pfizer Laboratories 2022).
- Identify protease inhibitors that maintain efficacy against the T21I + E166V mutation
- Easy co-expression with our 3CLglow and 3CLglowUp sensors
- Cost effective screening with minimal safety requirements (BSL-1)
Materials in the Kit:
• 3CLpro T21I + E166V in BacMam
• Sodium Butyrate, 500 mM in H2O
References:
Iketani, S., Mohri, H., Culbertson, B., Hong, S. J., Duan, Y., Luck, M. I., Annavajhala, M. K., Guo, Y., Sheng, Z., Uhlemann, A.-C., Goff, S. P., Sabo, Y., Yang, H., Chavez, A., & Ho, D. D. (2023). Multiple pathways for SARS-COV-2 resistance to Nirmatrelvir. Nature, 613(7944), 558–564. https://doi.org/10.1038/s41586-022-05514-2
Pfizer Laboratories. (2022). (rep.). FACT SHEET FOR HEALTHCARE PROVIDERS: EMERGENCY USE AUTHORIZATION FOR PAXLOVID. Retrieved from https://labeling.pfizer.com/ShowLabeling.aspx?id=16474.
Shu, Y., & McCauley, J. (2017). GISAID: Global initiative on sharing all influenza data – from vision to reality. Eurosurveillance, 22(13). https://doi.org/10.2807/1560-7917.es.2017.22.13.30494
Additional information
| Shipping | We strive for prompt delivery of each order, so we ship by FedEx 2-day service in lightweight, sturdy, and reusable/biodegradable packaging with an insulated cooler and moisture-resistant refrigerant gel packs. Shipping days are Mon-Wed so product does not sit in transit over the weekend. Web store ships to US & Canada only, contact sales for other locations. |
|---|---|
| Protocol for Use | https://montanamolecular.com/general-bacmam-transduction-protocol/ |
| MSDS | |
| Kit Volume | 5mL, 30mL |
| More Info | https://montanamolecular.com/detecting-inhibitors-of-mutant-3cl-proteases |
