B7-H3 (4Ig) (AA 27-461) (Active) protein (His tag,AVI tag,Biotin)

Catalog No. ABIN6731235

This Recombinant B7-H3 (4Ig) protein is expressed in HEK-293 Cells.

Quick Overview for B7-H3 (4Ig) (AA 27-461) (Active) protein (His tag,AVI tag,Biotin) (ABIN6731235)

Target: B7-H3 (4Ig)

Protein Type: Recombinant

Biological Activity: Active

Origin: Human

Source: HEK-293 Cells

Purity: >95 % as determined by SDS-PAGE.

Product Details

Protein Characteristics: AA 27-461

Purification tag / Conjugate: His tag,AVI tag,Biotin

Sequence: AA 27-461

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

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: B7-H3 (4Ig)

Background: Human B7 homolog 3 (B7-H3) is a member of the B7 family of immune proteins that provide signals for the regulation of immune responses. Other family members include B7-1, B7-2, B7-H1/PD-L1, B7-H2, and PD-L2. B7 family proteins are type I transmembrane immunoglobulin (Ig) superfamily members that contain extracellular Ig V-like and Ig C-like domains with a short cytoplasmic tail. Termed 4IgB7-H3 or B7-H3b, this molecule has two additional Ig-like domains (one V-type and one C-type) and shows a ubiquituous expression pattern.

Molecular Weight: 50.3 kDa

NCBI Accession: NP_001019907