Mfg Part Number
Ab01373-1.1

Vector Labs Ab01373-1.1 Anti-MS4A4A [4H2], Mouse IgG1, kappa (200 μg)

Quick Overview
This antibody was generated by immunizing C57BL/6 mice against mouse cell line 300-19 expressing transfected human membrane-spanning 4-domains subfamily A member 4A (MS4A4A)-GFP.
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Product Class:Purified
Clone ID:4H2
Synonyms:Four-span transmembrane protein 1; human membrane-spanning 4-domains subfamily A member 4A; CD20 antigen-like 1; (MS4A4A)-GFP; MS4A4; 4SPAN1; MS4A
Amount:200 μg
Application Codes Clone:FC; IP
Shipping Temperature:Wet Ice
Buffer Composition:PBS with 0.02% Proclin 300.
Original Format:IgG1
Storage Temperature:Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Specificity Statement:This antibody is specific for human extracellular MS4A4A. The 4H2 and 3F2 (Ab01375) mAb clones completely cross-block one another indicating that they might bind to the same epitope or proximal epitopes (Sanyal et al., 2017; pmid: 28303902). MS4A (membrane-spanning 4-domain family, subfamily A) is a large family of proteins that includes at least 26 members in mouse and humans. Flanked by amino- and carboxyl- cytoplasmic regions, MS4A family members contain four highly conserved transmembrane domains connected by short extracellular and cytoplasmic loops. MS4A4A is likely to be a component of oligomeric cell surface complexes involved in signal transduction in diverse cell lineages.
Application Notes:4H2 is recommended for the detection and analysis of expression of MS4A4A. Importantly, MS4A4A has been shown to be a marker for M2 macrophages and plasma cells and to be overexpressed in multiple myelomas, suggesting a potential role in targeting alternatively activated macrophages such as tumor-associated macrophages, and in the treatment of multiple myeloma and mantle cell lymphoma (Sanyal et al., 2017; pmid: 28303902). The antibody 4H2 can be successfully used for the detection of MS4A4A-expressing cells via flow cytometry (Sanyal et al., 2017; pmid: 28303902). Finally, specificity of this antibody was additionally confirmed via immunoprecipitation of lysates of BJAB MS4A4A-HA cells (Sanyal et al., 2017; pmid: 28303902).
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Brand Vector Labs
UNSPSC 12161500