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CD94 Rat anti-Mouse, Brilliant Violet 421, Clone: 18d3, BD Optibuild™

Rat Monoclonal Antibody

Manufacturer:  BD Biosciences 740067

Catalog No. BDB740067

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The 18d3 monoclonal antibody specifically recognizes CD94 on all NK cells, NK1.1- or DX5-positive T lymphocytes (NK-T cells), and a subset of CD8-positive T lymphocytes in most strains tested (eg, A/J, AKR/J, BALB/c, C3H/He, C57BL/6, CBA/J, DBA/1, FVB/N, 129/Sv, NOD, SWR, and most DBA/2 substrains, but not DBA/2J). DBA/2J mice do not express CD94.3 CD94 is also expressed on CD8+ T lymphocytes activated in vivo. CD94 is a type-II transmembrane protein with an extracellular lectin-like domain and a short cytoplasmic tail which is not believed to have any signalling function. Heterodimers of CD94 with NKG2A, NKG2C, or NKG2E recognize Qa-1 (a non-classical MHC class I antigen) presenting the Qdm peptide. Studies on CD94/NKG2 heterodimers on human NK cells have demonstrated that the NKG2 components mediate signal transduction for the receptor, NKG2A being inhibitory and NKG2C being stimulatory. Similarly, the mouse NKG2A molecule contains two intracytoplasmic sequences which resemble the ITIM ( Immunoreceptor Tyrosine-based Inhibitory Motif ) consensus sequence. CD94/NKG2 receptors appear on fetal NK cells before the Ly- 49 MHC class I receptors, suggesting that CD94/NKG2 receptors and their ligand, Qa-1, may play a role in maintenance of self-tolerance in developing NK cells.

The antibody was conjugated to BD Horizon™ BV421 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max at 421-nm, BD Horizon BV421 can be excited by the violet laser and detected in the standard Pacific Blue™ filter set (eg, 450/50-nm filter). BD Horizon BV421 conjugates are very bright, often exhibiting a 10 fold improvement in brightness compared to Pacific Blue conjugates.



Brilliant Violet 421
Aqueous buffered solution containing ≤0.09% sodium azide.
IgG2a, κ, also known as Lewis IgG2a, κ
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Flow Cytometry
Cd94; Klrd1; Killer cell lectin-like receptor, subfamily D, member 1
Affinity Purified
Transfected cell line
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
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