CTLA4 Protein (AA 37-162) (Fc Tag)

Catalog No. ABIN4949091

Product Details

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

Protein Type: Recombinant

Protein Characteristics: AA 37-162

Origin: Human

Source: HEK-293 Cells

Purification tag / Conjugate: This CTLA4 protein is labelled with Fc Tag.

Application: Functional Studies (Func)

Sequence: AA 37-162

Characteristics: This protein carries a mouse IgG2a Fc tag at the C-terminus. The protein has a calculated MW of 40.6 kDa. The protein migrates as 50 kDa on a SDS-PAGE gel under reducing (R) condition due to glycosylation and 100 kDa under non-reducing (NR) condition.

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

Endotoxin Level: Less than 0.1 EU per μg by the LAL method.

Application Details

Restrictions: For Research Use only

Handling

Format: Lyophilized

Buffer: 50 mM Tris, 100 mM Glycine, pH 7.5

Handling Advice: Please avoid repeated freeze-thaw cycles.

Storage: -20 °C

References

Zhao, Lee, Lin, Gassen, Xu, Huang, Xiao, Bonorino, Lu, Bui, Hui: "PD-L1:CD80 Cis-Heterodimer Triggers the Co-stimulatory Receptor CD28 While Repressing the Inhibitory PD-1 and CTLA-4 Pathways." in: Immunity, Vol. 51, Issue 6, pp. 1059-1073.e9, (2019) (PubMed).

Target Details

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

Alternative Name: CTLA-4 (CTLA4 Products)

Synonyms: CTLA-4 Protein, CTLA4 Protein, CD152 Protein, Cd152 Protein, Ctla-4 Protein, Ly-56 Protein, CD Protein, CELIAC3 Protein, GRD4 Protein, GSE Protein, IDDM12 Protein, sCTLA4 Protein, cytotoxic T-lymphocyte associated protein 4 Protein, cytotoxic T-lymphocyte-associated protein 4 Protein, CTLA4 Protein, Ctla4 Protein

Background: 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.

Molecular Weight: 40.6 kDa

Gene ID: 18, 17

NCBI Accession: NP_005205

Pathways: Cancer Immune Checkpoints