CD28 Antibody [C28/75]

T-cell-specific surface glycoprotein CD28, TP44, CD28, CD28

Functional Testing: order azide-free format

Flow Cytometry: 0.5-1 ug/million cells

IF: 0.5-1 ug/ml

IHC (FFPE): 0.5-1 ug/ml for 30 minutes at RT (1)

The concentration stated for each application is a general starting point. Variations in protocols, secondaries and substrates may require the antibody to be titered up or down for optimal performance.

1. Staining of formalin-fixed tissues is enhanced by boiling tissue sections in 1mM EDTA Buffer, pH 8.5-9.5, for 10-20 min followed by cooling at RT for 20 minutes.

This antibody recognizes a glycoprotein of 44-88kDa, which is identified as CD28. It is the critical T-cell 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 T-cells from anergic hyporesponsive state or from undergoing premature apoptotic cell death. CD28 is also expressed on human fetal NK cells and some NK cell lines, whereas on murine NK cells the CD28 expression is much broader.

PBS with 0.1 mg/ml BSA and 0.05% sodium azide

0.2 mg/mL

Unconjugated

Optimal dilutions/concentrations should be determined by the end user. The information provided is a guideline for product use. This product is for research use only.

Recombinant human CD28 protein was used as the immunogen for this antibody.

940

CD28 molecule

CD28

Homo sapiens

Liquid

Protein G affinity chromatography

Immunology,Signal Transduction

P10747

Optimal dilutions for each application to be determined by the researcher