| Code | CSB-MP004929HU1c7 |
| Abbreviation | Recombinant Human CD38 protein, partial (Active) |
| MSDS | |
| Size | $136 |
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CD38 catalyzes the synthesis and hydrolysis of cyclic ADP-ribose, a calcium-mobilizing second messenger implicated in immune cell activation and tumor microenvironment signaling. This recombinant fragment spanning residues 43–300 demonstrates functional binding activity with an EC50 of 7.073–8.315 ng/mL when immobilized at 2 μg/mL in ELISA format, providing quantitative evidence that the catalytic domain retains native conformation suitable for antibody-based screening assays and inhibitor IC50 determination studies. The C-terminal His tag placement preserves access to the extracellular catalytic face, supporting use in substrate specificity profiling and kinetic parameter analysis where unobstructed active site geometry is critical. Purity exceeding 95% by SDS-PAGE and endotoxin levels below 1.0 EU/μg meet the quality thresholds commonly required for enzymatic activity assays, drug candidate evaluation, and serve as a positive control in enzyme-linked immunoassays targeting CD38-directed therapeutics in oncology research.
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