Recombinant R. sanguineus Evasin-1 Fc Chimera Protein, CF

Catalog # Availability Size / Price Qty
10016-EV-050
Recombinant R. sanguineus Evasin-1 Fc Chimera Protein, CF Binding Activity
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Recombinant R. sanguineus Evasin-1 Fc Chimera Protein, CF Summary

Purity
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to inhibit CCL3/MIP-1 alpha -induced chemotaxis of BaF3 mouse pro‑B cells transfected with human CCR5. The ED50 for this effect is 0.2-1.2 μg/mL
Source
Human embryonic kidney cell, HEK293-derived r. sanguineus Evasin-1 protein
Human IgG1
(Met-Asp-Pro100 - Lys330)
IEGR R. sanguineus Evasin-1
(Glu21-Asn114)
Accession # P0C8E7.1
N-terminusC-terminus
Accession #
N-terminal Sequence
Analysis
Met-Asp-Pro100
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
37 kDa
SDS-PAGE
40-61 kDa, reducing conditions

Product Datasheets

Carrier Free

What does CF mean?

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.

What formulation is right for me?

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.

10016-EV

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 500 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:
  • 12 months from date of receipt, ≤ -20 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, ≤ -20 °C under sterile conditions after reconstitution.

Data Image

Binding Activity Binding Activity View Larger

Recombinant R.sanguineus Evasin‑1 Fc Chimera (Catalog # 10016-EV) inhibitsRecombinant Human CCL‑3/MIP‑1 alpha -induced chemotaxis of BaF3 mouse pro B cellstransfected with human CCR5. The ED50 for this effect is 0.2‑1.2 μg/mL.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: Evasin-1

Evasin-1 is a highly selective chemokine-binding protein isolated from tick saliva. The cDNA of tick Evasin-1 encodes a 114 amino acid (aa) precursor, which include a 20 aa signal peptide and the 94 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 chemokine neutralization activity. A group of proteins contributing to this activity have been identified as chemokine-binding proteins (CHPBs) and named as Evasins (1-3). Evasin-1 shows high affinity binding to a very limited set of three highly homologous CC chemokines: CCL3, CCL4 and CCL18 (1). Since it is a small molecule, Evasin-1 may be therapeutically useful as novel anti-inflammatory agent.

References
  1. Frauenschuh, A. et al. (2007) J. Biol. Chem. 282:27250.
  2. Deruaz, M. et al. (2008) J. Exp. Med. 205:2019.
  3. Deruaz, M. et al. (2013) FEBS J. 280:4876.
Long Name
Evasin-1
Alternate Names
Evasin-1

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