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Human CD46 +SDS-PAGE.jpg Human CD46 +SDS-PAGE.jpg Greater than 95% as determined by reducing SDS-PAGE.

Greater than 95% as determined by reducing SDS-PAGE.

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Recombinant Human CD46 (C-6His, HEK293) is a human-derived CD46 protein expressed in HEK293 human cells and carries a C-terminal 6xHis tag. This protein is a type I transmembrane protein comprising four sushi domains, broadly expressed in all cell types except erythrocytes. It possesses cofactor activity that facilitates the inactivation of complement components C3b and C4b, thereby protecting host cells from complement-mediated damage. CD46 plays crucial roles in fertilization, immune regulation, and viral infections, including those caused by measles virus, human herpesvirus 6, and pathogenic Neisseria species.

Synonyms: Recombinant Human CD46 (C-6His, HEK293); Membrane Cofactor Protein; TLX

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Product Details of Human CD46 (C-6His, HEK293)

M.W : 33.83 KDa
SMILES Code : NONE
Synonyms :
Recombinant Human CD46 (C-6His, HEK293); Membrane Cofactor Protein; TLX

Safety of Human CD46 (C-6His, HEK293)

Isoform Comparison

Biological Activity

Description
CD46 is a type I membrane protein containing four Sushi domains. CD46 is expressed by all cells except erythrocytes. CD46 has cofactor activity for inactivation of complement components C3b and C4b by serum factor I, which protects the host cell from damage by complement. It may be involved in the fusion of the spermatozoa with the oocyte during fertilization. CD46 also acts as a costimulatory factor for T-cells which induces the differentiation of CD4+ into T-regulatory 1 cells. T-regulatory 1 cells suppress immune responses by secreting interleukin-10, and therefore are thought to prevent autoimmunity. A number of viral and bacterial pathogens exploit this property and directly induce an immunosuppressive phenotype in T-cells by binding to CD46. CD46 acts as a receptor for the Edmonston strain of measles virus, human herpesvirus-6, and type IV pili of pathogenic Neisseria.
Protein Species Human
Expression System Human Cells
Tag C-6His
Protein Expression Interval Cys35-Asp328
Protein ID P15529-11
Endotoxin < 1 EU/µg as determined by LAL test.
Characteristics Lyophilized powder
Formulation Description Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4.
Reconstitution Method Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
For long-term storage, it is recommended to further dilute the product with a solution containing carrier proteins (e.g., 0.1% BSA, 10% FBS, or 5% HSA). For serum-free cultures or in vivo animal experiments where BSA, FBS, or HSA cannot be present in the cytokine preparation, trehalose may be used as an alternative carrier. Aliquots should be stored frozen at -20°C to -80°C.
Note: Low-adsorption tubes are recommended for aliquot storage, and repeated freeze-thaw cycles should be avoided. The dilution concentration for aliquoting should not be lower than 10 μg/mL, and the aliquot volume should be no less than 10 μL.
Aliquoted protein remains stable for up to 3 months when stored at ≤ -20°C.
 

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