Biotin modification of SBP1.SBP1(spike-binding peptide 1) is a first-in-class peptide binder to the SARS-CoV-2 spike protein. SBP1 specifically binds SARS-CoV-2-RBD with low nanomolar affinity. SBP1 to the RBD was determined to be 47 nM with the average Kon = 4.69*104M-1S-1 and Koff=2.2*10-3.The interaction between SBP1 and the RBD of SARS-CoV-2 spike protein was validated by bio-layer interferometry. The KD, derived from protein association and dissociation kinetics, was found to be 47 nM after averaging the fitting values at different protein concentrations. The amino acid sequence of SBP1 is entirely derived from human ACE2 and should be recognized as endogenous by the human immune system. This feature could be highly beneficial in later stages of pre-clinical development.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.