Bulk anti-Human CD2 In Vivo Antibody (LO-CD2a)
ichorbio’s bulk anti-Human CD2 Antibody (LO-CD2a) is manufactured in a cGMP compliant, ISO Quality Standard 9001:2015 facility.
BTI-322, CD2, CD2 molecule, T11, SRBC, LFA-2, T-cell surface antigen CD2, LFA-3 receptor, rosette receptor, erythrocyte receptor, lymphocyte-function antigen-2, T-cell surface antigen T11/Leu-5, CD2 antigen (p50), sheep red blood cell receptor
ichorbio’s anti-Human CD2 antibody is available in the following bulk sizes: 5mg, 25mg, 50mg and 100mg. ichorbio regularly manufactures multi-gram amounts of our anti-CD2 clone LO-CD2a – please contact us for pricing.
Rat IgG2b kappa
Anti-CD2 antibody (clone LO-CD2a) activity is directed against human CD2.
This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype.
CD2 is expressed on all mature human T cells, most thymocytes, NK cells and a small proportion of bone marrow cells.
LO-CD2a strongly inhibits mixed lymphocyte culture (MLC) 3 and induces T cell apoptosis. Additionally, LO-CD2a does not induce proliferation of resting T cells, and inhibits T cell proliferation induced by OKT3 antibody, induces very low levels of cytokine release, and also inhibits cytokine production induced by OKT3, LO-CD2a strongly inhibits proliferation of peripheral blood mononuclear cells stimulated with soluble OKT3, and induces human T cell hyporesponsiveness. Adding LO-CD2a to a primary MLC inhibits the T cell proliferation response and has a subsequent inhibitory effect on the secondary immune response, thereby blocking primary and memory alloantigen proliferative responses. The human T cell hyporesponsiveness in the secondary MLC is restricted to alloantigens and occurs both in the absence of antibody and after cell surface re-expression of CD2.
LO-CD2a was developed as an immunosuppressive agent for use in organ allotransplantation. LO-CD2a was produced by immunizing a LOU/C rat with purified human T lymphocytes and fusing the splenocytes with the non-secreting rat fusion cell line IR983F, resulting in a rat IgG2b mAb of the IgK-1a allotype.
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. BSA and azide free
>95% by SDS-PAGE and HPLC
>98% by SDS-PAGE and HPLC
≤ 1.0 EU/mg as determined by the LAL method
≤ 0.75 EU/mg as determined by the LAL method
Aggregation level ≤ 5%
Aggregation level ≤ 1%
This antibody is stable for at least 4 weeks when stored at 2-8°C. For long term storage, aliquot in working volumes without diluting and store at – 20°C or -80°C. Avoid repeated freeze thaw cycles.
ELISA, Functional Assays, Flow Cytometry
Each investigator should determine their own optimal working dilution for specific applications.
Products are for research use only. Not for use in diagnostic or therapeutic procedures.
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