Recombinant R. sanguineus Evasin-3 His-tag Protein, CF Summary
Leu21-Arg86. with a C-terminal 6-His tag
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
|Formulation||Lyophilized from a 0.2 μm filtered solution in PBS.|
|Reconstitution||Reconstitute at 250 μg/mL in PBS.|
|Shipping||The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.|
|Stability & Storage:||
Recombinant R. sanguineus Evasin‑3 (Catalog # 10034-EV) inhibits IL‑8/CXCL8-induced chemotaxis of BaF3 mouse pro‑B cells transfected with human CCXR2. The ED50 for this effect is 0.15-0.9 μg/mL.
Evasin-3 is a highly selective chemokine-binding protein isolated from tick saliva. The cDNA of tick Evasin-3 encodes an 86 amino acid (aa) precursor, which includes a 20 aa signal peptide and a 66 aa mature protein (1). Ticks are blood sucking parasites that secrete a wide variety of immunomodulatory proteins to evade the host immune response. The saliva isolated from Ticks has shown to contain chemokine neutralization activity. These proteins have been identified as chemokine binding proteins (CHPBs) that were termed as Evasins (1,2.3). Evasin-3 belongs to a new class of chemokine binding proteins in that it shows high affinity binding to a very limited set of chemokines, including CXCL8 and CXCL1. Since it is very small molecule Evasin-3 may be therapeutically useful as novel anti-inflammatory agent.
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