|Synonyms||TNFSF5, sCD40L, CD154, gp39, T-BAM, TNF-related Activation Protein, TRAP|
|Molecular Weight||Approximately 16.3 kDa, a single non-glycosylated polypeptide chain containing 149 amino acids.|
|AA Sequence||MQKGDQNPQI AAHVISEASS KTTSVLQWAE KGYYTMSNNL VTLENGKQLT VKRQGLYYIY AQVTFCSNRE ASSQAPFIAS LWLKSPGRFE RILLRAANTH SSAKPCGQQS IHLGGVFELQ PGASVFVNVT DPSQVSHGTG FTSFGLLKL|
|Purity||> 95 % by SDS-PAGE and HPLC analyses.|
|Biological Activity||Fully biologically active when compared to standard. The ED50 as determined by the dose-dependent stimulation of IL-8 production by human PBMC is less than 5-10 ng/ml.|
|Physical Appearance||Sterile Filtered White lyophilized (freeze-dried) powder.|
|Formulation||Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.0.|
|Endotoxin||Less than 1 EU/μg of rHusCD40L as determined by LAL method.|
|Reconstitution||We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.|
|Stability & Storage||Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 3 months, -20 to -70 °C under sterile conditions after reconstitution.
|Usage||This material is offered by Shanghai PrimeGene Bio-Tech for research, laboratory or further evaluation purposes. NOT FOR HUMAN USE.|
|Reference||1. Li R, Chen WC, Pang XQ, et al. 2011. Mol Biol Rep, 38: 5459-64.|
2. Reinboldt S, Wenzel F, Rauch BH, et al. 2009. Platelets, 20: 441-4.
3. Tousoulis D, Antoniades C, Nikolopoulou A, et al. 2007. Eur J Clin Invest, 37: 623-8.
4. Varo N, Libby P, Nuzzo R, et al. 2005. Diab Vasc Dis Res, 2: 81-7.
5. Holzer G, Pfandlsteiner T, Blahovec H, et al. 2003. Wien Med Wochenschr, 153: 40-2.
|Background||CD40 ligand is a 261 amino acid type II transmembrane glycoprotein belonging to the TNF family and can be cleaved into two chains: the CD40 ligand membrane form and CD40 ligand soluble form. It is primarily expressed on activated CD4+ T lymphocytes, and also found in other types of cells, like NK cells, mast cells, basophils and eosinophils. In total CD40 ligand has three binding partners: CD40, α5β1 integrin and αIIbβ3. It mediates a range of activities on B cells including induction of activation-associated surface antigen, entry into cell cycle, isotype switching and Ig secretion and memory generation. CD40-CD40L interaction also plays important roles in monocyte activation and dendritic cell maturation.|