| Code | CSB-AP005191HU |
| Abbreviation | Recombinant Human CD40LG protein, partial (Active) |
| MSDS | |
| Size | $96 |
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CD40L drives B-cell activation, germinal center formation, and immunoglobulin class switching through engagement of CD40 on antigen-presenting cells, making it an essential tool for dissecting NF-κB and MAPK signaling downstream of the CD40 receptor. This tag-free recombinant human CD40LG, spanning residues 113–261, demonstrates strong binding potency with an ED50 of 6.05 ng/ml in a functional ELISA against immobilized CD40-Fc, supporting its use as a reference standard in cytokine detection assays, a coating antigen for antibody development, and a stimulant in B-cell proliferation and differentiation studies. Endotoxin levels below 1.0 EU/μg minimize LPS-driven artifacts in sensitive immune cell assays such as PBMC activation or primary B-cell culture experiments, while purity exceeding 95% by SDS-PAGE provides a suitable basis for quantitative signaling pathway analyses requiring well-defined ligand inputs.
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