Recombinant human CTLA4 protein
CTLA4 is a member of the immunoglobulin superfamily and 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. Recombinant human CTLA4 protein, fused to His-tag at N-terminus, was expressed in E. coli.
Product Specifications
Product Name Alternative
Expression System
E.coli
Antigen Species
Human
Tag
His-Tag
Applications
SDS-PAGE, Denatured
Concentration
1 mg/mL (determined by Bradford assay)
Purity
> 90% by SDS-PAGE
Molecular Weight
15.9 kDa (149aa)
Additionnal Information
References & Citations
Rudd CE, Taylor A, et al. (2009) . Immunol Rev. 229 (1) :12-26.; ; Stamper CC, Zhang Y, et al. (2001) . Nature. 410 (6828) :608-11.
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 0.4M urea, 10% glycerol
Scientific Category
Immunology
NCBI Accession Number
NP_005205.2
Uniprot Accession Number
P16410
Species
Human
AA Sequence
KAMHVAQ PAVVLASSRG IASFVCEYAS PGKATEVRVT VLRQADSQVT EVCAATYMMG NELTFLDDSI CTGTSSGNQV NLTIQGLRAM DTGLYICKVE LMYPPPYYLG IGNGTQIYVI DPEPCPDSD
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