Recombinant CD40 Ligand Protein (Glu 108-Leu 261) [His] [Avi] (VAng-1303Lsx)

Biotinylated Human CD40 Ligand, His tag and Avi tag, is expressed in HEK 293 cells. (Uniprot ID: P29965-1)

Datasheet

Specifications

Source

HEK293 Cells.

Target

CD40LG

Type

Tumor Antigens

Applications

SDS-PAGE; WB; ELISA.

Formulation

PBS, pH 7.4.

Purity

> 90% pure by SDS-PAGE.

Storage

Store at -20°C to -80°C.

Antigen Information

Introduction

CD40LG 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 (protein) on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In total CD40L has three binding partners. 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, an important process in the adaptive immune system.

Alternative Names

CD40LG, CD154, CD40L, HIGM1, IGM, IMD3, T-BAM, TNFSF5, TRAP, gp39