This gene 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.
Host
Rabbit
Immunogen
Synthetic peptide corresponding to residues near the C terminal of Human Cytotoxic T-lymphocyte protein 4
This gene 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.
Species
Homo Sapiens (Human)
Specificity
The antibody detects endogenous levels of total CTLA4 protein.
Subcellular Location
Cell membrane, Single-pass type I membrane protein
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.
Pathway
T cell receptor signaling pathway
Tissue Specificity
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.
Buffer
Rabbit IgG in pH7.3 PBS, 0.05% NaN3, 50% Glycerol.
Form
Rabbit IgG in pH7.3 PBS, 0.05% NaN3, 50% Glycerol.
Format
liquid
Purification
Antigen Affinity Purified
Purity
Antigen Affinity Purified
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.