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5093

Sigma-Aldrich

CD40 human

recombinant, expressed in E. coli, 0.5 mg protein/mL

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.75

biological source

human

recombinant

expressed in E. coli

description

0.1 mg of recombinant human CD40 in 20 mM Tris-HCl buffer, containing NaCl, KCl, EDTA, L-arginine, DTT and glycerol.

sterility

Filtered sterilized solution

Assay

≥90% (SDS-PAGE)

form

liquid

packaging

pkg of 100 μg

concentration

0.5 mg protein/mL

technique(s)

cell culture | mammalian: suitable

accession no.

NP_690593

shipped in

dry ice

storage temp.

−20°C

Gene Information

human ... CD40LG(959)

Application

Coating a plate well (6 well plate) with this recombinant CD40 protein in neuronal cell specific medium at 1-10 μg/well (6 well plate) allows for 1) human neuronal cell / receptor interaction studies or 2) use as a culture matrix protein for human neuronal axon connection studies in vitro.

Use this procedure as a guideline to determine optimal coating conditions for the culture system of choice.
1.Thaw CD40 and dilute to desired concentration using serum-free medium or PBS. The final solution should be sufficiently dilute so the volume added covers the surface evenly (1-10 μg/well, 6 well plate).
2.Add appropriate amount of diluted material to culture surface.
3.Incubate at room temperature for approximately 1.5 hours.
4.Aspirate remaining material.
5.Rinse plates carefully with water and avoid scratching bottom surface of plates.
6.Plates are ready for use. They may also be stored at 2-8 °C damp or air dried if sterility is maintained.

Sequence

MASMTGGQQMGRGHHHHHHGNLYFQGGEFELEPPTACREKQYLINSQCCSLCQPGQKLVSDCTEFTETECLPCGESEFLDTWNRETHCHQHKYCDPNLGLRVQQKGTSETDTICTCEEGWHCTSEACESCVLHRSCSPGFGVKQIATGVSDTICEPCPVGFFSNVSSAFEKCHPWTRSPGSAESPGGDPHHLRDPVCHPLGAGL

Preparation Note

The full-length extracellular domain of the human CD40 gene (54-608 aa) was constructed with 29 N-terminal T7/HIS-tag and expressed in E. coli as inclusion bodies. The final product was refolded using our unique “temperature shift inclusion body refolding” technology and chromatographically purified.

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Joel N Glasgow et al.
PloS one, 4(12), e8355-e8355 (2009-12-23)
Successful gene therapy will require targeted delivery vectors capable of self-directed localization. In this regard, the use of antibodies or single chain antibody fragments (scFv) in conjunction with adenovirus (Ad) vectors remains an attractive means to achieve cell-specific targeting. However
Mohsen Arabpour et al.
Molecular immunology, 114, 172-178 (2019-07-30)
B lymphocytes with regulatory or effector functions synthesize granzyme B (GZMB). We investigated the frequency and phenotype of GZMB-producing B cells in breast tumor-draining lymph nodes (TDLNs). Mononuclear cells were isolated from 48 axillary lymph nodes and were stimulated with
Simon N Willis et al.
Nature communications, 8(1), 1426-1426 (2017-11-12)
Humoral immunity requires B cells to respond to multiple stimuli, including antigen, membrane and soluble ligands, and microbial products. Ets family transcription factors regulate many aspects of haematopoiesis, although their functions in humoral immunity are difficult to decipher as a
Mark Melchers et al.
Retrovirology, 8, 48-48 (2011-06-22)
One reason why subunit protein and DNA vaccines are often less immunogenic than live-attenuated and whole-inactivated virus vaccines is that they lack the co-stimulatory signals provided by various components of the more complex vaccines. The HIV-1 envelope glycoprotein complex (Env)
T M Foy et al.
The Journal of experimental medicine, 180(1), 157-163 (1994-07-01)
gp39, the ligand for CD40 expressed on activated CD4+ T helper cells, is required for the generation of antibody responses to T-dependent (TD) antigens. Treatment of mice with anti-gp39 in vivo inhibits both primary and secondary antibody formation to TD

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