Anti-CD28, AlpHcAbs® Human antibody

Details and Advantages
Applications: ELISA,Flow Cyt
Reactivity: Human
Conjugate: Unconjugated
Advantages:

High lot-to-lot consistency

Increased sensitivity and higher affinity

Animal-free production

Summary >
Description:
Anti-CD28, AlpHcAbs® Human antibody is designed for detecting human CD28 specifically. Based on ELISA and/or FCM, Anti-CD28, AlpHcAbs® Human antibody reacts with human CD28 specifically.

Immunogen: Recombinant human CD28
Host: Alpaca pacous
Isotype: Human IgG1
Conjugate: Unconjugated
Specificity: Human CD28
Purity: Recombinant Expression and Affinity purified
Concentration: 1mg/ml
Formation: Liquid, 10mM PBS (pH 7.5), 0.05% sucrose, 0.1% trehalose, 0.01% proclin300, 50% Glycerol
Storage: Store at –20 °C, (Avoid freeze / thaw cycles)

Background:
CD28 antigen is a 44 kDa disulfide linked homodimeric T cell specific surface glycoprotein. CD28 is a cell adhesion molecule of the immunoglobulin superfamily which is constitutively expressed on most peripheral blood T lymphocytes. Moreover, CD28 is the critical T cell costimulatory receptor that provides the cell the important second activation signal by binding CD80 and CD86 which are expressed by antigen presenting cells. In addition to its co-stimulation role, CD28 functions by preventing T cells from entering an anergic-hyporesponsive state or from undergoing premature apoptotic cell death. In murine peripheral lymphoid organs and in the blood, all CD4+ and CD8+ T cells express CD28. In the thymus, CD28 expression is highest on immature CD3-, CD8+ and CD4+8+ cells, and on CD4-8- cells that express alpha/beta and gamma/delta TCR. The level of CD28 on mature CD4+ and CD8+ alpha/beta TCR+ thymocytes is two- to fourfold lower than on the immature cells. Diseases associated with CD28 dysfunction include mycosis fungiodes and Sezary's Disease.
Performance >
ELISA: 1:4,000-1:10000
Flow Cytometry:1:200-1:1000

Dilution factors are presented in the form of a range because the optimal dilution is a function of many factors, such as antigen density, permeability, etc. The actual dilution used must be determined empirically.