GeneBio Systems
CTLA4 Polyclonal Antibody
CTLA4 Polyclonal Antibody
SKU:AN006100L
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Size::25μL
Storage:Store at -20℃ Valid for 12 months. Avoid freeze / thaw cycles. Protected from prolonged exposure to light.
Shipping:The product is shipped with ice pack, upon receipt, store it immediately at the temperature recommended.
Exp date:12 months
Category ID_II:Primary Antibodies
Category ID_III:Polyclonal Antibodies
Abbreviation:CTLA4
Target Synonym:Ctla4;Ly-56;GRD;Cytotoxic T-lymphocyte protein;Cytotoxic T-lymphocyte-associated antigen;IDDM;CELIAC;CELIAC3;CTLA-4;Cytotoxic T-lymphocyte protein 4;Cytotoxic T-lymphocyte-associated antigen 4;GRD4;GSE;IDDM12;Cd152;Ctla4; Ly-56
Research Areas:
Conjugation:Unconjugated
Host:Rabbit
Species reactivity:Human
Application:IHC
Isotype:IgG
Clonality:Polyclonal
Clone NO.:
UNIProt ID:P09793
Accession:
Background:CTLA-4 and CD28, together with their ligands B7-1 and B7-2, constitute one of the dominant costimulatory pathways that regulate T- and B-cell responses. CTLA-4 and CD28 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. Both CTLA-4 and CD28 are composed of a single Ig V‑like extracellular domain, a transmembrane domain and an intracellular domain. CTLA-4 and CD28 are both expressed on the cell surface as disulfide-linked homodimers or as monomers. The genes encoding these two molecules are closely linked on human chromosome 2. CTLA-4 was originally identified as a gene that was specifically expressed by cytotoxic T lymphocytes. However, CTLA-4 transcripts have since been found in both Th1 and Th2, and CD4+ and CD8+ T cell clones. Whereas, CD28 expression is constitutive on the surfaces of 95% of CD4+ T cells and 50% of CD8+ T cells and is down regulated upon T cell activation, CTLA-4 expression is upregulated rapidly following T cell activation and peaks approximately 24 hours following activation. Although both CTLA-4 and CD28 can bind to the same ligands, CTLA-4 binds to B7-1 and B7-2 with 20-100-fold higher affinity than CD28. The physiological role of CTLA-4 in T cell costimulation is currently being studied.
Concentration:1 mg/mL
Immunogen:Recombinant Mouse CTLA4 protein expressed by Mammalian
Buffer:PBS with 0.02% sodium azide, 1% protective protein and 50% glycerol, pH7.4
Purification method:Antigen Affinity Purification
Dilution:IHC 1:500-1:1000
Calculated MW:
ObservedMW:
