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Anti-CTLA4 (CD152), clone 9H10
Species Reactivity Key Applications Host Format Antibody Type
M WB, FC, IP Hamster Purified Monoclonal Antibody
Description:
Anti-CTLA4 (CD152) Antibody, clone 9H10
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Specificity:
This antibody recognizes CTLA4. Antibody 9H10 is specific for CTLA-4 by four criteria: (a) Reactivity against CTLA-4 Ig but not CD4 lg; (b) the ability to block CTLA-4 Ig binding to B7 transfectants; (c) the ability to stain activated T cells but not freshly isolated T cells; and (d) the ability to stain a CTLA-4 transfectant but not control transfectants (Krummel, M.F., et al., 1995).
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Molecular Weight:
~30 kDa
Immunogen:
Mouse CTLA-4/human IgG1 fusion protein corresponding to residues surrounding CTLA4.
Clone:
9H10
Isotype:
IgG
Background Information:
CTLA4, Cytotoxic T lymphocyte antigen 4, also known as CD152, belongs to the family of immunoglobins. It is widely expressed on activated T lymphocytes and is involved in the maintenance of immune tolerance. CTLA4 is a homolog for CD28. They are able to bind to B7-1 and B7-2; however, CTLA4 is able to bind to both with a higher affinity. Defects in CTLA4 have been linked to Rheumatoid arthritis, Addisons disease, Graves disease and many other autoimmune diseases.
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Species Reactivity:
Mouse
Species Reactivity Note:
Demonstrated to react with mouse.
Application Notes:
Flow Cytometry Analysis: Representative images from a previous lot of primary antibody that was biotinylated. Results with 04-963 are expected to be similar if used directly with an anti-Syrian hamster conjugated antibody, however because of the low expression of CTLA4 Fab fragmented goat anti-Syrian hamster biotin followed SA-fluorophore is recommended for best results.
FACS analysis of ConA (24 hours) stimulated BALB/C splenocytes for surface expression of CTLA-4 (CD152). Cells were stained with 10 ug of biotin-labeled hamster anti-CTLA-4 ,clone 9H10 (open histogram) or with PE-Sav secondary antibody alone (histogram, Figure B). Note the distinct signal difference between the control (dark control histogram) and test (clear histogram).
Immunoprecipitation: Clone 9H10 is widely used for immunoprecipitaiton of CTLA-4; recommended lysis buffers include 1% NP40; 0.5% triton X-100 with proteinase inhibitors; 1-5 µg of 9H10 is added to 300-500 µL of whole cell lysate or cell membrane protein preparations (250-500 mg/mL totall protein) and incubated 3-6 hours at 4°C, followed by capture with protein G beads following standard immunoprecipitation methods (Zhang, Y., et al., 1997).
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Control:
Mouse spleen cell lysate
Quality Assurance:
Evaluated by Western Blot in mouse spleen lysate.
Western Blot Analysis: 1 µg/mL of a biotinylated version of this antibody detected CTLA4 in 10 µg of mouse spleen lysate.
THIS ANTIBODY IS NO BIOTINYLATED.
Purification Method:
Protein G purfied
Presentation:
Purified hamster monoclonal IgG in buffer containing 0.1 M Tris-Glycine (pH 7.4) with 150 mM NaCl and 0.05% sodium azide.
Storage Conditions:
Stable at 2-8°C for 1 year from date of receipt.
UniProt Number:
P16410
Entrez Gene Number:
NP_033973.2
Gene Symbol:
CD
CD152
CD28
CELIAC3
CTLA-4
GSE
ICOS
IDDM12
OTTHUMP00000163781
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Alternate Names:
CD152 antigen
Cytotoxic T-lymphocyte-associated antigen 4
celiac disease 3
cytotoxic T-lymphocyte-associated protein 4
cytotoxic T-lymphocyte-ass |