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).
Preparation and Storage
Sterile PBS to a final concentration of 0.5 mg/mL.
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.
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.
Membrane-spanning 4-domains, Subfamily A, Member 4A
Entrez Gene IDs:
51338 (Human); 666907 (Mouse); 361734 (Rat)
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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