Antibody Details
Product Details
Reactivity Species
Mouse
Host Species
Syrian Hamster
Immunogen
Mouse CTLA-4-human IgG1 fusion protein
Product Concentration
≥ 5.0 mg/ml
Endotoxin Level
< 0.5 EU/mg as determined by the LAL method
Purity
≥98% monomer by analytical SEC
> 95% by SDS Page
Formulation
This monoclonal antibody is aseptically packaged and formulated in 0.01 M phosphate buffered saline (150 mM NaCl) PBS pH 7.2 - 7.4 with no carrier protein, potassium, calcium or preservatives added.
Product Preparation
Functional grade preclinical antibodies are manufactured in an animal free facility using only In vitro protein free cell culture techniques and are purified by a multi-step process including the use of protein A or G to assure extremely low levels of endotoxins, leachable protein A or aggregates.
Pathogen Testing
To protect mouse colonies from infection by pathogens and to assure that experimental preclinical data is not affected by such pathogens, all of Leinco’s Purified Functional PLATINUM™ antibodies are tested and guaranteed to be negative for all pathogens in the IDEXX IMPACT I Mouse Profile.
Storage and Handling
Functional grade preclinical antibodies may be stored sterile as received at 2-8°C for up to one month. For longer 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
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
Anti-Mouse CLTA-4 (Clone 9H10) recognizes an epitope on Mouse CD152. This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype. This antibody was also pathogen tested and third-party certified by IDEXX BioReseach to meet the lowest mycoplasma specification and free of any viral pathogens of concern.
Antigen Distribution
Activated T cells
Background
CTLA4 (Cytotoxic T-Lymphocyte Antigen 4) also known as CD152, is a protein which is expressed on the surface of Helper T cells and plays an important regulatory role in the immune system.1 CTLA4 is a member of the immunoglobulin superfamily, expressed on the surface of Helper T cells. CTLA4 transmits an inhibitory signal to T cells.2, 3 CTLA4 is potentially therapeutic in autoimmune diseases4, such as rheumatoid arthritis, HIV, autoimmune thyroid disease, multiple sclerosis and may also be useful during organ transplantation and cancer treatment. The 9H10 antibody has been shown to promote T cell co-stimulation by blocking CTLA-4 binding to the B7 co-receptors, allowing for CD28 binding.
Antigen Details
Protein
CLTA-4
Ligand/Receptor
CD80 (B7.1), CD86 (B7.2)
Function
Negative regulator of T cell activation
PubMed
CLTA-4
NCBI Gene Bank ID
12477
UniProt.org
Information on Uniprot.org
References & Citations
1. Allison JP, et al. 1995. Science 270:932.
Technical Protocols