CTLA4 Protein (AA 37-162) (Fc Tag,AVI tag,Biotin)

N° du produit ABIN2870534

Détail du produit

Antigène: CTLA4 (Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))

Type de proteíne: Recombinant

Activité biologique: Active

Attributs du protein: AA 37-162

Origine: Humain

Source: HEK-293 Cells

Purification/Conjugué: Cette CTLA4 protéine est marqué à la Fc Tag,AVI tag,Biotin.

Marque: MABSol®,PrecisionAvi

Séquence: AA 37-162

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

Attributs du produit: This protein carries a human IgG1 Fc fragment at the C-terminus, followed by an Avi tag (Avitag™). The protein has a calculated MW of 42 kDa. The protein migrates as 50-55 kDa on a SDS-PAGE gel under reducing (R) condition due to glycosylation.

Pureté: >95 % as determined by reduced SDS-PAGE.

niveau d'endotoxine: Less than 1.0 EU per μg by the LAL method.

Information d'application

Commentaires:

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

Stockage

Format: Lyophilized

Buffer: Tris with Glycine, Arginine and NaCl,  pH 7.5

Conseil sur la manipulation: Please avoid repeated freeze-thaw cycles.

Stock: -20 °C

Référence

Ganesan, Moon, Barakat: "Revealing the atomistic details behind the binding of B7-1 to CD28 and CTLA-4: A comprehensive protein-protein modelling study." dans: Biochimica et biophysica acta. General subjects, Vol. 1862, Issue 12, pp. 2764-2778, (2019) (PubMed).

Détail du antigène

Antigène: CTLA4 (Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))

Autre désignation: CTLA-4 (CTLA4 Produits)

Sujet: CTLA-4 (Cytotoxic T-Lymphocyte Antigen 4) is also known as CD152 (Cluster of differentiation 152), is a protein receptor that downregulates the immune system. CTLA4 is a member of the immunoglobulin superfamily, which is expressed on the surface of Helper T cells and transmits an inhibitory signal to T cells. The protein contains an extracellular V domain, a transmembrane domain, and a cytoplasmic tail. Alternate splice variants, encoding different isoforms. CTLA4 is similar to the T-cell co-stimulatory protein, CD28, and both molecules bind to CD80 and CD86, also called B7-1 and B7-2 respectively, on antigen-presenting cells. CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Intracellular CTLA4 is also found in regulatory T cells and may be important to their function. Fusion proteins of CTLA4 and antibodies (CTLA4-Ig) have been used in clinical trials for rheumatoid arthritis.

Poids moléculaire: 41.8 kDa

NCBI Accession: NP_005205

Pathways: Cancer Immune Checkpoints