Recombinant Human CD30 Ligand / TNFSF8 Protein, His Tag, low endotoxin (MALS verified), 100 µg

Background
CD30 ligand (CD30L) and CD30 are interacting cellsurface glycoproteins that are members of the tumour necrosis factor (TNF) and tumour necrosis factor receptor (TNFR) superfamilies. In humans, CD30L is expressed at high levels on activated T cells. There is conflicting evidence with regard to cell surface expression of CD30L on primary human B cells. An initial report of constitutive CD30L expression on peripheral blood B cells33 has not been substantiated.

Source
Recombinant Human CD30 Ligand, His Tag, low endotoxin (CDL-H524b) is expressed from human 293 cells (HEK293). It contains AA Gln 63 - Asp 234 (Accession # P32971-1).
Predicted N-terminus: His

Molecular Characterization
This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 21.5 kDa. The protein migrates as 30-40 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Endotoxin
Less than 0.01 EU per μg by the LAL method.

Purity
>90% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.

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

Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70^°C for 3 months under sterile conditions after reconstitution.

Bioactivity
Please refer to product data sheet.

Clinical and Translational Updates

(1) "Whole slide imaging of tumour microenvironment in classical Hodgkin's lymphoma: development of a clinical prediction model based on programmed death-ligand 1 and tumorous Reed-Sternberg cells"
Santisteban Espejo, Bernal-Florindo, Montero-Pavon et al
J Clin Pathol (2023)
(2) "Reconciling intrinsic properties of activating TNF receptors by native ligands versus synthetic agonists"
Fromm, de Silva, Schreiber
Front Immunol (2023) 14, 1236332
(3) "TB granuloma: CD30 co-stimulation for CD4+ T cell co-operation"
Gress, Bold
J Exp Med (2023) 220 (8)
Showing 1-3 of 374 papers.