Human CD40 Ligand/TNFSF5 protein, His tag,Starter_specification/price/image

Product Detail
Company Profile

Product Specification

Species	Human
Synonyms	CD40 ligand, CD40-L, T-cell antigen Gp39, TNF-related activation protein (TRAP), Tumor necrosis factor ligand superfamily member 5, CD154, CD40LG, CD40L, TNFSF5, TRAP
Accession	P29965
Amino Acid Sequence	Protein sequence (P29965, Met113-Leu261, with C-His tag) MQKGDQNPQIAAHVISEASSKTTSVLQWAEKGYYTMSNNLVTLENGKQLTVKRQGLYYIYAQVTFCSNREASSQAPFIASLCLKSPGRFERILLRAANTHSSAKPCGQQSIHLGGVFELQPGASVFVNVTDPSQVSHGTGFTSFGLLKL
Expression System	HEK293
Molecular Weight	Predicted MW: 17.9 kDa Observed MW: 18, 19 kDa
Purity	＞95% by SDS-PAGE
Endotoxin	<0.1EU/μg
Conjugation	Unconjugated
Tag	with C-His tag
Physical Appearance	Lyophilized Powder
Storage Buffer	Lyophilized from a 0.2 μm filtered solution of 0.2M PBS, pH7.4.
Reconstitution	Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation.
Stability & Storage	12 months from date of receipt, -20 to -70 °C as supplied. 6 months, -20 to -70 °C under sterile conditions after reconstitution. 1 week, 2 to 8 °C under sterile conditions after reconstitution. Please avoid repeated freeze-thaw cycles.

Background

CD154, also called CD40 ligand, is a protein that is primarily expressed on activated T cells and is a member of the TNF superfamily of molecules. It binds to CD40 on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In total CD40L has three binding partners: CD40, α5β1 integrin and integrin αIIbβ3. CD154 acts as a costimulatory molecule and is particularly important on a subset of T cells called T follicular helper cells (TFH cells). On TFH cells, CD154 promotes B cell maturation and function by engaging CD40 on the B cell surface and therefore facilitating cell-cell communication. A defect in this gene results in an inability to undergo immunoglobulin class switching and is associated with hyper IgM syndrome. Absence of CD154 also stops the formation of germinal centers and therefore prohibiting antibody affinity maturation.

AntBio is a biotechnology group company dedicated to serving life sciences, aiming to help scientists accelerate research and improve work efficiency. AntBio provides comprehensive and high-quality reagent tools for basic research, drug development, and diagnosis, including research grade antibodies, proteins, biochemical reagents, and assay kits. These research tools are widely used in different segments of life science research. The group company currently consists of three brands, Absin, Starter-Bio and UA-Bio.