Flow Cytometry catalog - ROW 2019

Single-Color Conjugated Antibodies

CD159a (NKG2a) is a 40 kDa (reduced), 75 kDa (unreduced) type II transmembrane protein associated with CD94 to form a disulphide-linked heterodimer. CD159a is a member of the Ca+ +-dependent (C-type) lectin family. The CD94/NKG2A dimer is an inhibitory NK receptor for MHC Class I, with a broader specificity than Killer cell Immunoglobin (Ig)-like Receptors (KIR). The intracellular portion of CD159a (NKG2A) contains two characteristic ITIM motifs (Immunoreceptor tyrosine based inhibition motif) involved in the transduction of the inhibitory signal. The CD159a (NKG2A) antigen is always co-expressed with CD94. The CD94/NKG2A complex is detectable in sub-populations of NK cells, T cells and thymocytes. CD159a ( NKG2a )

Lysed normal whole blood sample.

Clone: Z199 Isotype: IgG2b Mouse The Z199 antibody reacts specifically with CD94 bright NK cells expressing the inhibitory form of the CD94 molecules. It does not stain the activator form of CD94 which corresponds to the association of CD94 with other products of the NKG2a gene family. The antibody restores the ability of CD94 bright NK clones to lyse HLA class I targets.

Form

Size

Format

Part#

Status

Line Quality Standard

PE

IM3291U B10246 A60797 IM2750

1 mL

Liquid Liquid Liquid

ASR ASR ASR ASR

IOTest IOTest IOTest

GMP GMP GMP GMP

PC7 APC

0.5 mL 0.5 mL 0.2 mg

UNLB

Freeze-dried

-

The CD160 molecule (BY55 antigen) is a 27-kDa, glycosyl phosphatidylinositol (GPI)-anchored glycoprotein of 181 amino acids, with a single immunoglobulin (Ig)-like domain. The molecule contains two potential sites for N-glycosylation and is rich in cysteine (6 residues in the mature polypeptide), indicating an important capacity for forming intra- and inter-chain disulfide bonds, which likely support the disulfide-linked multimeric (80 kDa) expression at the cell surface. Its expression is highly restricted to circulating cytotoxic T and NK cells, and in tissues, to intestinal intraepithelial lymphocytes, as revealed by CD160 mRNA blot analysis and various phenotyping studies. In peripheral blood, CD160+ cells consist of a majority of CD3– TCR γδ + NK cells, which is significantly reduced in HIV+ individuals, and of a minority of CD3+ CD8bright T lymphocytes, which is significantly increased in HIV+ individuals. In bone marrow, CD160+ cells, though less abundant than in adult peripheral blood, also consist of the two populations observed in peripheral blood. In cord blood, CD160+ cells consist of a unique CD3– TCR– NK cell population, 80% of these cells being CD56+. CD160 is a ligand for classical and non- classical MHC-class I molecules. The ligation of MHC-class I by CD160 provides a costimulatory signal restricted to peripheral blood activated T cells, suggesting a pathway being additional and/or alternative to the CD28 costimulation mechanism. This pathway may be relevant in memory T cells that lack CD28, such as the intestinal intraepithelial lymphocytes. CD160 Isotype: IgM Mouse The BY55 antibody was initially reported to react with a protein structure of 80 kDa exclusively expressed by circulating cytotoxic lymphocytes. It does not block the binding of the CD160 molecule to MHC-class I molecules. Clone: BY55

YT Cell line.

Form

Size

Format

Part#

Status

Line Quality Standard

PE

IM3657

2 mL

Liquid

ASR

IOTest

GMP

If you require a different antibody fluorochrome combination, please refer to the Custom Design Services on page 14 or contact us via: cds.support@beckman.com ANTIBODIES & KITS 96 Outside US Flow Cytometry Catalog