ICOS Protein (AA 21-141) (His tag,AVI tag,Biotin)

Catalog No. ABIN6731299

Product Details

Target: ICOS (Inducible T-Cell Co-Stimulator (ICOS))

Protein Type: Recombinant

Biological Activity: Active

Protein Characteristics: AA 21-141

Origin: Human

Source: HEK-293 Cells

Purification tag / Conjugate: This ICOS protein is labelled with His tag,AVI tag,Biotin.

Sequence: AA 21-141

Specificity: Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

Purity: >90 % as determined by SDS-PAGE.

Endotoxin Level: Less than 1.0 EU per μg by the LAL method.

Application Details

Comment:

Ready-to-use AvitagTM biotinylated protein:
The product is exclusively produced using the AvitagTM technology. Briefly, a unique 15 amino acid peptide, the Avi tag, is introduced into the recombinant protein during expression vector construction. The single lysine residue in the Avi tag is enzymatically biotinylated by the E. Coli biotin ligase BirA.

This single-point enzymatic labeling technique brings many advantages for commonly used binding assays. The biotinylation happens on the lysine residue of Avi tag, and therefore does NOT interfere with the target protein's natural binding activities. In addition, when immobilized on an avidin-coated surface, the protein orientation is uniform because the position of the Avi tag in the protein is precisely controlled.

Restrictions: For Research Use only

Handling

Format: Lyophilized

Buffer: PBS, pH 7.4

Handling Advice: Please avoid repeated freeze-thaw cycles.

Storage: -20 °C

Target Details

Target: ICOS (Inducible T-Cell Co-Stimulator (ICOS))

Alternative Name: ICOS (ICOS Products)

Synonyms: ICOS Protein, AILIM Protein, CCLP Protein, CRP-1 Protein, H4 Protein, Ly115 Protein, CD278 Protein, CVID1 Protein, Ailim Protein, inducible T-cell costimulator Protein, inducible T cell co-stimulator Protein, inducible T-cell co-stimulator Protein, ICOS Protein, LOC100232284 Protein, Icos Protein

Background: Inducible T-cell costimulator (ICOS) is also known as Activation-inducible lymphocyte immunomediatory molecule (AILIM), CD278, which belongs to the CD28 family of immune costimulatory receptors consisting of CD28, CTLA-4 and PD-1. ICOS enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. CD278 / ICOS prevents the apoptosis of pre-activated T-cells and also plays a critical role in CD40-mediated class switching of immunoglobin isotypes.

Molecular Weight: 17.4 kDa

Pathways: Cancer Immune Checkpoints