CTLA4 Antibody (N-term)
Affinity Purified Rabbit Polyclonal Antibody (Pab)
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application
| WB, IHC-P, E |
---|---|
Primary Accession | P16410 |
Other Accession | NP_005205.2, NP_001032720.1 |
Reactivity | Human |
Host | Rabbit |
Clonality | Polyclonal |
Isotype | Rabbit IgG |
Calculated MW | 24656 Da |
Antigen Region | 50-78 aa |
Gene ID | 1493 |
---|---|
Other Names | Cytotoxic T-lymphocyte protein 4, Cytotoxic T-lymphocyte-associated antigen 4, CTLA-4, CD152, CTLA4, CD152, IDDM12 |
Target/Specificity | This IDDM12 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 50-78 amino acids of human IDDM12. |
Dilution | WB~~1:2000 IHC-P~~1:50~100 |
Format | Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification. |
Storage | Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles. |
Precautions | CTLA4 Antibody (N-term) is for research use only and not for use in diagnostic or therapeutic procedures. |
Name | CTLA4 |
---|---|
Synonyms | CD152 |
Function | Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28. |
Cellular Location | Cell membrane; Single-pass type I membrane protein. Note=Exists primarily an intracellular antigen whose surface expression is tightly regulated by restricted trafficking to the cell surface and rapid internalization |
Tissue Location | Widely expressed with highest levels in lymphoid tissues. Detected in activated T-cells where expression levels are 30- to 50-fold less than CD28, the stimulatory coreceptor, on the cell surface following activation. |
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Provided below are standard protocols that you may find useful for product applications.
Background
CTLA4 is a member of the immunoglobulin superfamily and encodes a protein which transmits an inhibitory signal to T cells. The protein contains a V domain, a transmembrane domain, and a cytoplasmic tail. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. The membrane-bound isoform functions as a homodimer interconnected by a disulfide bond, while the soluble isoform functions as a monomer. Mutations in this gene have been associated with insulin-dependent diabetes mellitus, Graves disease, Hashimoto thyroiditis, celiac disease, systemic lupus erythematosus, thyroid-associated orbitopathy, and other autoimmune diseases.
References
Liu, Y., et al. Hum. Immunol. 71(11):1141-1146(2010)
Andersen, M.K., et al. Diabetes Care 33(9):2062-2064(2010)
Azarpira, N., et al. Exp Clin Transplant 8(3):210-213(2010)
Liu, G., et al. Nan Fang Yi Ke Da Xue Xue Bao 30(8):1838-1840(2010)
Oaks, M.K., et al. Cell. Immunol. 201(2):144-153(2000)
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