Human MS4A4A Alexa Fluor® 700-conjugated Antibody

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Human MS4A4A Alexa Fluor® 700-conjugated Antibody Summary

Species Reactivity
Detects human MS4A4A.
Monoclonal Mouse IgG2b Clone # 818112
Mouse myeloma cell line NS0 transfected with human MS4A4A
Accession # Q96JQ5
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Alexa Fluor 700 (Excitation= 675-700 nm, Emission= 723 nm)


Recommended Concentration
Flow Cytometry
0.25-1 µg/106 cells
Human MS4A4A and eGFP co-transfectants

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: MS4A4A

MS4A4A, also called CD20-like 1, is a 23 kDa (predicted) member of the MS4A family of four-transmembrane proteins that includes CD20 (MS4A1) and Fce RIb (MS4A2). MS4A4 cDNA is detected in hematopoietic cell lines, with highest expression in myeloid and B cell lines. Expressed sequence tags are detected in multiple organs and tissues. Human MS4A4A shares ~60% amino acid sequence identity with mouse and rat MS4A4A, if sequence gaps at the cytoplasmic N and C termini are disregarded. One potential isoform lacks aa 130-182, which includes the 3rd transmembrane segment and the first of two extracellular regions.

Long Name
Membrane-spanning 4-domains, Subfamily A, Member 4A
Entrez Gene IDs
51338 (Human); 666907 (Mouse); 361734 (Rat)
Alternate Names
4SPAN1; CD20 antigen-like 1; CD20L1; CD20L1CD20-L1; Fc epsilon receptor beta subunit homolog; Four-span transmembrane protein 1; membrane-spanning 4-domains subfamily A member 4A; membrane-spanning 4-domains, subfamily A, member 4; membrane-spanning 4-domains, subfamily A, member 4A; MS4A4; MS4A4A; MS4A4MGC22311; MS4A7

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Product Specific Notices

This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.


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