Human Recombinant SCD40 Ligand (from E. coli)

About this item

CD40, a member of the TNF receptor superfamily, is a cell surface protein expressed on B cells, dendritic cells, monocytes, thymic epithelial cells and, at low levels, on T cells. Signaling though CD40 plays an important role in the proliferation and differentiation of B cells, and is critical for immunoglobulin (Ig) class switching. The membrane-anchored CD40-Ligand is expressed almost exclusively on activated CD4+ T lymphocytes. Failure to express CD40L leads to “immunodeficiency with hyper-IgM”, a disease characterized by failure to produce IgG, IgA and IgE. The human CD40L gene codes for a 261 amino acid type II transmembrane protein, which contains a 22 amino acid cytoplasmic domain, a 24 amino acid transmembrane domain, and a 215 amino acid extracellular domain. The soluble form of CD40L is an 18 kDa protein comprising the entire TNF homologous region of CD40L and is generated in vivo by an intracellular proteolytic processing of the full length CD40L. Recombinant Human soluble CD40 ligand is a 16.3 kDa protein containing 149 amino acid residues comprising the receptor binding TNF-like domain of CD40L. Manufactured using all Animal-Free reagents.

Carrier free
Animal-free

MQKGDQNPQI AAHVISEASS KTTSVLQWAE KGYYTMSNNL VTLENGKQLT VKRQGLYYIY AQVTFCSNRE ASSQAPFIAS LWLKSPGRFE RILLRAANTH SSAKPCGQQS IHLGGVFELQ PGASVFVNVT DPSQVSHGTG FTSFGLLKL

Verified by N-terminal and Mass Spectrometry analyses (when applicable).

Ordering information: For research use only. Not for use in diagnostic or therapeutic procedures.

Restricted Products: To process your orders without delay, please provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email [email protected] or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:

• State issued document with your organization's Federal Tax ID Number
• State issued document with your organization's Resale Tax ID Number
• City or County issued Business License
• State Department of Health Services License
• Any other ID issued by the State that includes the business name & address

* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. Avantor will not lift restrictions for residential shipping addresses.

Specifications

Protein/Peptide Type:
Recombinant
Source:
E. coli
Species:
Human
Storage Conditions:
−20 °C
Endotoxin Content:
<0.1 ng/μg of protein (<1 EU/μg).
Biological Activity:
Assay #1: Determined by the stimulation of IL-12 induction by human PBMCs.
Assay #2: Determined by the dose-dependent stimulation of IL-8 production by human PBMC. The expected ED₅₀ for this effect is 5-10 ng/ml. Note: Results may vary with PBMC donors.
Animal-Free:
Y
Protein/Peptide Name:
SCD40 Ligand
Purity:
Greater than 98% by SDS-PAGE gel and HPLC analyses.
Formulation:
Lyophilized
Shipping Temperature:
RT