Biotinylated Human TNF-alpha Protein, epitope tag free, ultra sensitivity (primary amine labeling), active trimer (MALS verified)

DIF, TNF-alpha, TNFA, TNFSF2, cachexin, cachectin, TNFα

Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling (TNA-H8211) is expressed from human 293 cells (HEK293). It contains AA Val 77 - Leu 233 (Accession # P01375-1). It is the biotinylated form of Human TNF-alpha, premium grade (Cat. No. TNA-H4211).

The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with biotins using standard chemical labeling method. A standard biotin reagent (13.5 angstroms) is used in this product.

Passed as determined by the HABA assay / binding ELISA.

>95% as determined by SDS-PAGE.

>95% as determined by SEC-MALS.

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

This product is shipped at ambient temperature.

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

• -20°C to -70°C for 12 months in lyophilized state;
• -70°C for 3 months under sterile conditions after reconstitution.