Active Recombinant Human CD40 Protein, Fc-tagged, Alexa Fluor 647 conjugated

• Cat.No.: CD40-108HAF647
• Product Overview: Alexa Fluor 647 conjugated recombinant human CD40 Protein extracellular domain 21-193aa (signal peptide removed), fused with a C-terminal Fc tag, was expressed in CHO.

Specification

• Description: CD40, also known as TNFRSF5, is a member of the TNF receptor superfamily which are single transmembrane-spanning glycoproteins. CD40 protein plays an essential role in mediating a broad variety of immune and inflammatory responses including T cell-dependent immunoglobulin class switching, memory B cell development, and germinal center formation. CD40 protein is expressed in B cells, dendritic cells, macrophages, endothelial cells, and several tumor cell lines. Defects in CD40 result in hyper-IgM immunodeficiency type 3 (HIGM3). In addition, CD40/CD40L interaction is found to be necessary for amyloid-beta-induced microglial activation, and thus is thought to be an early event in Alzheimer disease pathogenesis.
• Source: CHO
• Species: Human
• Tag: Fc
• Form: Lyophilized
• Bio-activity: Measured by its binding ability in a functional ELISA.
• Molecular Mass: 45.2 kDa
• Protein length: 405
• N-terminal Sequence Analysis: Glu 21
• Endotoxin: < 1.0 EU/ μg by the LAL method.
• Purity: > 95 % as determined by SDS-PAGE
• Characteristic: Disulfide-linked homodimer
  Labeled with Alexa Fluor 647 via amines
  Excitation = 650 nm
  Emission = 668 nm
• Stability: Samples are stable for up to 12 months from date of receipt at -70 centigrade.
• Storage: Store it under sterile conditions at -20 to-70 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Storage Buffer: Lyophilized from sterile PBS, pH 7.4.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 μg/μL. Centrifuge the vial at 4 centigrade before opening to recover the entire contents.

Gene Information

• Gene Name: CD40 CD40 molecule, TNF receptor superfamily member 5 [ Homo sapiens ]
• Official Symbol: CD40
• Synonyms: CD40; CD40 molecule, TNF receptor superfamily member 5; TNFRSF5, tumor necrosis factor receptor superfamily, member 5; tumor necrosis factor receptor superfamily member 5; Bp50; p50; CD40L receptor; CD40 type II isoform; B cell-associated molecule; B cell surface antigen CD40; B-cell surface antigen CD40; CD40 antigen (TNF receptor superfamily member 5); tumor necrosis factor receptor superfamily, member 5; nerve growth factor receptor-related B-lymphocyte activation molecule; CDW40; TNFRSF5; MGC9013
• Gene ID: 958
• mRNA Refseq: NM_001250
• Protein Refseq: NP_001241
• MIM: 109535
• UniProt ID: P25942