CD28 Antibody
This antibody recognizes a glycoprotein of 44-88kDa, which is identified as CD28. It is the critical Tcell co-stimulatory receptor which provides to the cell the important second activation signal by binding CD80 and CD86 that are expressed by antigen presenting cells. Besides its co-stimulation role, CD28 functions in preventing Tcells from anergic hyporesponsive state or from undergoing premature apoptotic cell death. it is also expressed on human fetal NK cells and some NK cell lines, whereas on murine NK cells the CD28 expression is much broader.
Product Specifications
CAS Number
9007-83-4
Specifications
Flow cytometry: 1-2ug/10^6 cells, Immunofluorescence: 1-2 µg/mL, Functional studies (order BSA/sodium azide-free format)
Host
Mouse
Reactivity
Human
Immunogen
Recombinant human protein was used as the immunogen for this CD28 antibody.
Clonality
Monoclonal
Isotype
IgG1 k
Clone
CB28
Applications
FACS, IF, Functional studies
Purity
Protein G affinity chromatography
Format
Purified
Buffer
1X PBS, pH 7.4
Reconstitution
Store the CD28 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Limitations
This CD28 antibody is available for research use only.
Storage Conditions
Store the CD28 antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide) .
Formulation
0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced) and 0.05% sodium azide
Applications Notes
Location
Cell surface
Image Legend
Flow cytometry staining of PFA-fixed human Jukat cells with CD28 antibody (clone CB28) ; Red=isotype control, Blue= CD28 antibody.
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