Human MS4A4A Antibody

Catalog # Availability Size / Price Qty
Detection of MS4A4A in HEK293 Human Cell Line Co-transfected with MS4A4A and eGFP by Flow Cytometry.
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Product Details
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Human MS4A4A Antibody Summary

Species Reactivity
Detects human MS4A4A.
Monoclonal Mouse IgG2B Clone # 818112
Protein A or G purified from hybridoma culture supernatant
Mouse myeloma cell line NS0 transfected with human MS4A4A
Accession # Q96JQ5
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

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Recommended Concentration
Flow Cytometry
2.5 µL/106 cells
See below
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

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.

Scientific Data

Flow Cytometry Detection of MS4A4A antibody in HEK293 Human Cell Line Co-transfected with MS4A4A and eGFP antibody by Flow Cytometry. View Larger

Detection of MS4A4A in HEK293 Human Cell Line Co-transfected with MS4A4A and eGFP by Flow Cytometry. HEK293 human embryonic kidney cell line co-transfected with human MS4A4A and eGFP was stained with either (A) Mouse IgG2B Isotype Control (Catalog # MAB0041) or (B) Mouse Anti-Human MS4A4A Monoclonal Antibody (Catalog # MAB7797) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B).

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Sterile PBS to a final concentration of 0.5 mg/mL.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

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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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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