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SRP3150

Sigma-Aldrich

sCD23 human

recombinant, expressed in E. coli, ≥96% (SDS-PAGE), ≥96% (HPLC), suitable for cell culture

Sinónimos:

BLAST-2, CD23 antigen, Fc-epsilon-RII, Lymphocyte IgE receptor

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About This Item

Código UNSPSC:
12352202
NACRES:
NA.32

origen biológico

human

recombinante

expressed in E. coli

Ensayo

≥96% (HPLC)
≥96% (SDS-PAGE)

Formulario

lyophilized

mol peso

19.2 kDa

envase

pkg of 20 μg

técnicas

cell culture | mammalian: suitable

impurezas

<0.1 EU/μg endotoxin, tested

color

white

Nº de acceso UniProt

Condiciones de envío

wet ice

temp. de almacenamiento

−20°C

Información sobre el gen

human ... FCER2(2208)

Descripción general

CD23, the low affinity receptor for IgE, belongs to the C-type lectin structural family and plays a role in the regulation of IgE synthesis and IgE mediated activities. It is found both as a transmembrane receptor protein and in a soluble form, which is generated by proteolytic cleavage of membrane bound CD23. The predominant soluble form of CD23 (sCD23) consists of 172 amino acids corresponding to the extracellular domain of the full length precursor. sCD23, in addition to binding IgE, also exerts a number of IgE independent activities, such as promoting the activation and differentiation of B-cells and stimulating the release of pro-inflammatory cytokines from monocytes. Recombinant human sCD23 is a 19.2 kDa non-glycosylated protein containing 172 amino-acid residues.

Acciones bioquímicas o fisiológicas

CD23, the low affinity receptor for IgE, belongs to the C-type lectin structural family and plays a role in the regulation of IgE synthesis and IgE mediated activities. Recombinant human sCD23 is a 19.2 kDa non-glycosylated protein containing 172 amino-acid residues.

Secuencia

MELQVSSGFV CNTCPEKWIN FQRKCYYFGK GTKQWVHARY ACDDMEGQLV SIHSPEEQDF LTKHASHTGS WIGLRNLDLK GEFIWVDGSH VDYSNWAPGE PTSRSQGEDC VMMRGSGRWN DAFCDRKLGA WVCDRLATCT PPASEGSAES MGPDSRPDPD GRLPTPSAPL HS

Forma física

Lyophilized from 0.5x PBS, pH 8.0.

Reconstitución

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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A Saxon et al.
The Journal of allergy and clinical immunology, 86(3 Pt 1), 333-344 (1990-09-01)
The role of soluble fragments of CD23 and their relationship to interleukin-4 (IL-4) in the in vitro production of IgE by normal human peripheral blood mononuclear cells was examined. Most donors' cells were induced to produce IgE in vitro by
G Delespesse et al.
International archives of allergy and applied immunology, 90 Suppl 1, 41-44 (1989-01-01)
The low-affinity receptor for IgE (FcERII or CD23) is a membrane 45-kD glycoprotein which is cleaved by an autoproteolytic mechanism into soluble 37-, 33- and 25-kD fragments that are capable of binding to IgE (IgE-binding factors, IgE-BFs). FcERIIa (which is

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