Anti-Human CD28 - Purified In vivo GOLD™ Functional Grade

Antibody Details

Product Details

Reactivity Species

Human

Host Species

Mouse

Product Concentration

≥ 2.0 mg/ml

Endotoxin Level

≤ 1.0 EU/mg as determined by the LAL method

Purity

≥95% monomer by analytical SEC

> 95% by SDS Page

Formulation

This monoclonal antibody is aseptically packaged and formulated in 0.01 M phosphate buffered saline (PBS) pH 7.2 - 7.4, 150 mM NaCl with no carrier protein, potassium or preservatives added.

Storage and Handling

This antibody 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.

Country of Origin

USA

Shipping

2-8°C

RRID

AB_2829581

Each investigator should determine their own optimal working dilution for specific applications. See directions on lot specific datasheets, as information may periodically change.

Description

Specificity

Clone CD28.2 recognizes an epitope on human CD28.

Antigen Distribution

CD28 is expressed on thymocytes, CD4+, CD8+ peripheral T cells, NK cells.

Background

CD28 is a 44 kD glycoprotein and a member of the Ig superfamily. In its capacity as a costimulatory receptor, CD28 produces co-stimulatory signals necessary for T cell activation and survival. CD28 is the only B7 receptor constitutively expressed on naive T cells. Without having this CD28/B7 interaction, T cells will fail to respond to their specific antigen when coming in contact with an MHC/antigen complex and thus, are said to be anergic.

Antigen Details

Protein

CD28

Ligand/Receptor

CD80, CD86

PubMed

CD28

NCBI Gene Bank ID

940

UniProt.org

Information on Uniprot.org

Research Area

Costimulatory Molecules

.

References & Citations

1. Stern, LJ. et al. (2005) Proc Natl Acad Sci U S A.102(10):3744-9 PubMed

Technical Protocols