Name: Bulk anti-Human CD28 antibody (CD28.2) - Low Endotoxin
Price: 680.00 USD

- Overview
  - Antigen Distribution: Mature T cells, thymocytes, NK cell subsets, plasma cells, EBV-positive B cells
    Specificity: Anti-CD28 In Vivo Antibody - Low Endotoxin (CD28.2) recognizes an epitope on Human CD28
    Purification method: This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype.
    Isotype Control: Mouse IgG1 Isotype Control for In Vivo - Low Endotoxin [HKSP] (ICH2247)
    Endotoxin: <0.1 EU/mg as determined by the LAL method
    Aggregation: Aggregation level ≤ 5%
    
    Please contact us at for specific academic pricing.
    
    Background
    
    CD28 (Cluster of Differentiation 28) is one of the molecules expressed on T cells that provide co-stimulatory signals, which are required for T cell activation. CD28 is composed of a single Ig V-like extracellular domain, a transmembrane domain and an intracellular domain. It is expressed on the cell surface as disulfide-linked homodimer or as monomer. CD28 is the receptor for B7.1 (CD80) and B7.2 (CD86). When activated by Toll-like receptor ligands, the B7.1 expression is upregulated in antigen presenting cells (APCs). The B7.2 expression on antigen presenting cells is constitutive. CD28 is the only B7 receptor constitutively expressed on naive T cells. Stimulation through CD28 in addition to the TCR can provide a potent co-stimulatory signal to T cells for the production of various interleukins (IL-2 and IL-6 in particular). CD28 possesses an intracellular domain with several residues that are critical for its effective signalling. CD28 also contains two proline-rich motifs that are able to bind SH3-containing proteins.
    
    CD28 has also been found to stimulate eosinophil granulocytes where its ligation with anti-CD28 leads to the release of IL-2, IL4, IL-13 and IFN-gamma
- Properties
  - Host
    
    mouse
    
    Isotype
    
    IgG1 kappa
    
    Reactivity
    
    human
    
    Clone
    
    CD28.2
    
    Purification
    
    >90% by SDS-PAGE and HPLC
    
    Formulation
    
    0.01 M phosphate buffered saline (PBS) pH 7.2, 150 mM NaCl with no carrier protein, potassium or preservatives added.
    
    Storage
    
    anti-CD28 In Vivo Antibody - Low Endotoxin (CD28.2) is stable for at least one week when stored sterile at 2-8°C. For long term storage aseptically aliquot in working volumes without diluting and store at –80°C. Avoid Repeated Freeze Thaw Cycles.
    
    Molecular Weight
    
    1.0 mg/ml
    
    Regulatory Status
    
    Each investigator should determine their own optimal working dilution for specific applications.
    
    Antigen
    
    (Gene ID:TP44)
    
    * Products are for research use only. Not for use in diagnostic or therapeutic procedures.
- Applications
  - Application
    
    IHC (frozen); Flow Cytometry; Functional Assays

Bulk anti-Human CD28 antibody (CD28.2) - Low Endotoxin

Bulk anti-Human CD28 antibody (CD28.2) - Low Endotoxin

Background

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