HHLA2 Protein (AA 23-344) (Fc Tag,AVI tag,Biotin)
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- Target See all HHLA2 Proteins
- HHLA2 (HERV-H LTR-Associating 2 (HHLA2))
- Protein Type
- Recombinant
- Biological Activity
- Active
- Protein Characteristics
- AA 23-344
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Origin
- Human
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Source
- HEK-293 Cells
- Purification tag / Conjugate
- This HHLA2 protein is labelled with Fc Tag,AVI tag,Biotin.
- Sequence
- AA 23-344
- 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.
- Top Product
- Discover our top product HHLA2 Protein
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- Comment
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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
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- Format
- Lyophilized
- Buffer
- Tris with Glycine, Arginine and NaCl, pH 7.5
- Handling Advice
- Please avoid repeated freeze-thaw cycles.
- Storage
- -20 °C
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- Target
- HHLA2 (HERV-H LTR-Associating 2 (HHLA2))
- Alternative Name
- B7-H7 (HHLA2 Products)
- Synonyms
- B7H7 Protein, HERV-H LTR-associating 2 Protein, HHLA2 Protein, hhla2 Protein
- Background
- B7-H7 (HHLA2) is a newly identified B7 family member that regulates human T-cell functions. B7-H7 was previously known as human endogenous retrovirus-H long terminal repeat associating 2 (HHLA2) with unidentified function. Recently, B7-H7 has been identified as a specific ligand for human CD28H. The B7-H7-CD28H pathway strongly promoted CD4+ T-cell proliferation and cytokine production via an AKT-dependent signaling cascade in the presence of TCR signaling, suggesting B7-H7 comprises a new co-stimulatory pathway. The first IgV domain of B7-H7, which presumably binds to a putative receptor, shows the highest homology to other B7 family members.
- Molecular Weight
- 65.9 kDa
- NCBI Accession
- NP_009003
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