Type of antibody:
Primary antibodies, Recombinant antibodies
recombinant human IgG1
Alternative names:
KIR3DL1, NKB1, NKB1B, p70

Extended validation for CD158e (KIR3DL1) Antibody, anti-human, REAfinity™


Epitope competition
In order to compare the epitope specificity of an antibody, the clone being used is compared with other known clones recognizing the same antigen in a competition assay.
Other clonesOverlap in epitope recognition with REA1005
Cells were incubated with an excess of purified unconjugated CD158e (KIR3DL1) (REA1005) antibody followed by staining with fluorochrome-conjugated antibodies of other known clones against the same marker. Based on the fluorescence signal obtained, the clones were identified as recognizing completely overlapping (++), partially overlapping (+), or completely different epitopes (-) of the marker.

Specifications for CD158e (KIR3DL1) Antibody, anti-human, REAfinity™


Clone REA1005 recognizes the human CD158e (KIR3DL1), a member of the killer immunoglobulin-like receptor (KIR) family expressed on CD56
natural killer (NK) cells and CD8
T cells. KIRs contribute to the regulation of NK cell–mediated cytotoxicity. They are monomeric receptors possessing high allelic polymorphism with either 2 or 3 Ig-like extracellular domains. According to the length of their cytoplasmic tail, KIRs can be further subdivided into inhibitory KIRs and activating KIRs (KIR2DS or KIR3DS). KIR3DL1 provides an inhibitory signal of NK cell lytic activity upon interaction with its specific ligand, HLA-Bw4.
Additional information: Clone REA1005 displays negligible binding to Fc receptors.

Alternative names

KIR3DL1, NKB1, NKB1B, p70

Detailed product information

Technical specifications

Isotyperecombinant human IgG1
Isotype controlREA Control Antibody (S), human IgG1
Hostcell line
Type of antibodyPrimary antibodies, Recombinant antibodies
AntigenCD158e (KIR3DL1)
Alternative names of antigenKIR3DL1, NKB1, NKB1B, p70
Molecular mass of antigen [kDa]47
Distribution of antigenNK cells, CD8+ T cells
Entrez Gene ID3811
RRIDAB_2727698, AB_2727772, AB_2727699, AB_2727773, AB_2727700, AB_2727774, AB_2727701, AB_2727775, AB_2727702, AB_2727776, AB_2727703, AB_2727777, AB_2727704, AB_2727778, AB_2727705, AB_2727779, AB_2727706, AB_2727780, AB_2727707, AB_2727781, AB_2727708, AB_2727771

Resources for CD158e (KIR3DL1) Antibody, anti-human, REAfinity™

Documents and Protocols

References for CD158e (KIR3DL1) Antibody, anti-human, REAfinity™


  1. Selvakumar, A. et al. (1997) Polymorphism and domain variability of human killer cell inhibitory receptors. Immunol. Rev. 155: 183-196
  2. Farag, S. S. et al. (2002) Natural killer cell receptors: new biology and insights into the graft-versus-leukaemia effect. Blood 100(6): 1935-1947
  3. Hsu, K. et al. (2002) The killer cell immunoglobin-like (KIR) genomic region: gene-order, haplotypes and allelic polymorphism. Immunol. Rev. 190: 40-52

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