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Key Documents

SAB4700432

Sigma-Aldrich

Monoclonal Anti-CD46-PE antibody produced in mouse

clone MEM-258, purified immunoglobulin, buffered aqueous solution

Synonym(s):

Anti-Membrane Cofactor Protein

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.44

biological source

mouse

Quality Level

conjugate

phycoerythrin (R-PE) conjugate

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

MEM-258, monoclonal

form

buffered aqueous solution

species reactivity

bovine, human

technique(s)

flow cytometry: suitable

isotype

IgG1

NCBI accession no.

UniProt accession no.

shipped in

wet ice

storage temp.

2-8°C

target post-translational modification

unmodified

Gene Information

human ... CD46(4179)

General description

The antibody MEM-258 recognizes an epitope on SCR4 (the membrane-proximal SCR) domain of CD46 (Membrane cofactor protein). CD46 is 56-66 kDa dimeric transmembrane protein expressed on T and B lymphocytes, platelets, monocytes, granulocytes, endothelial cells, epithelial cells and fibroblast; it is negative on erythrocytes.
The gene cluster of differentiation 46 (CD46) is localized in the regulators of complement activation gene cluster on human chromosome 1q32.2. The gene codes for a type 1 membrane bound protein called membrane cofactor protein (MCP). The encoded protein is characterized with an intracellular tail region with several variant structures such as, a single transmembrane α-helical region, a short region of unknown function (U), a collar STP-rich region and finally four extracellular complement control protein (CCP) domains involved in the cofactor activity. MCP is ubiquitously expressed.

Immunogen

HPB-ALL human T cell line

Application

The reagent is designed for Flow Cytometry analysis of human blood cells using 20 μL reagent / 100 μL of whole blood or 1e6 cells in a suspension. The content of a vial (2 mL) is sufficient for 100 tests.

Biochem/physiol Actions

Membrane cofactor protein (MCP) acts as a complement regulator and protects the cells from autologous complement-mediated damage. It plays a major role in inhibition of alternative pathway (AP), lectin pathway (LP) and classical pathway (CP). In addition, it also acts as a cellular receptor for certain pathogens such as the measles virus (Edmonston strain), human herpesvirus 6 and Neisseria gonorrhoeae. The encoded protein facilitates the fertilization of the human egg. Mutations in the CD46 gene has been observed in patients with preeclampsia and atypical hemolytic uremic syndrome (aHUS).

Features and Benefits

Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.

Physical form

Solution in phosphate buffered saline containing 15 mM sodium azide and 0.2% high-grade protease free BSA as a stabilizing agent.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Unusual Clinical Severity of Complement Membrane Cofactor Protein?Associated Hemolytic-Uremic Syndrome and Uniparental Isodisomy
Fremeaux-Bacchi V
American Journal of Kidney Diseases, 49, 323-329 (2007)
Genetic analysis of membrane cofactor protein (CD46) of the complement system in women with and without preeclamptic pregnancies.
Lokki AI
PLoS ONE, 10 (2015)
Human Membrane Cofactor Protein (CD46) Acts as a Cellular Receptor for Measles Virus
Naniche D.
Journal of Virology, 67, 6025-6032 (1993)
Aleksei A Stepanenko et al.
Molecular therapy oncolytics, 24, 230-248 (2022-01-25)
Ad5-delta-24-RGD is currently the most clinically advanced recombinant adenovirus (rAd) for glioma therapy. We constructed a panel of fiber-modified rAds (Ad5RGD, Ad5/3, Ad5/35, Ad5/3RGD, and Ad5/35RGD, all harboring the delta-24 modification) and compared their infectivity, replication, reproduction, and cytolytic efficacy

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