The mouse monoclonal antibody G28-8 recognizes an extracellular epitope of CD180, a 95-105 kDa TLR-like glycoprotein expressed on peripheral blood monocytes and dendritic cells, mantle zone B cells and marginal zone B cells, but very weakly on germinal center B cells.
Cross-Reactivity (Details)
Human
Purification
Purified by protein-A affinity chromatography.
Purity
> 95 % (by SDS-PAGE)
Endotoxin Level
Endotoxin level is less than 0.01 EU/µg of the protein, as determined by the LAL test.
Functional application: Induction of B cell proliferation. Flow cytometry: Recommended dilution: 2 μg/mL.
Restrictions
For Research Use only
Concentration
1 mg/mL
Buffer
Phosphate buffered saline (PBS), pH 7.4
Preservative
Azide free
Storage
4 °C
Storage Comment
Store at 2-8°C. Do not freeze.
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Clark, Shu, Lüscher, Draves, Banchereau, Ledbetter, Valentine: "Activation of human B cells. Comparison of the signal transduced by IL-4 to four different competence signals." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 143, Issue 12, pp. 3873-80, (1990) (PubMed).
Valentine, Clark, Shu, Norris, Ledbetter: "Antibody to a novel 95-kDa surface glycoprotein on human B cells induces calcium mobilization and B cell activation." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 140, Issue 12, pp. 4071-8, (1988) (PubMed).
CD180 Molecule,CD180, also known as RP105 (or Bgp95, LY64) is a type I membrane glycoprotein of Toll-like receptor (TLR) family. Its cytoplasmic tail is short and unlike the TLRs, it lacks the TIR domain. CD180 expression is dependent on the coexpression of its helper molecule, MD-1, and mirrors that of TLR4 on antigen-presenting cells. CD180 regulates recognition of LPS and signaling in B cells, via interacting directly with the TLR4 signaling complex, inhibiting its ability to bind microbial ligands. Ligation of CD180 by monoclonal antibodies leads to B cell activation, upregulation of CD80/CD86, and increase in cell size.,LY64, Ly78, RP105, Bgp95