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Please note: We are reviewing Western blot images included in the antibody testing data in our catalog, including those provided by third parties. Unless expressly labeled or annotated as “raw-unedited”, Western blot images included in the antibody testing data in our catalog may have been edited, optimized or otherwise adjusted for presentation.
KIR2DL2 and KIR2DL3 are genes belonging to the killer cell immunoglobulin-like receptor (KIR) family, located on chromosome 19q13.4. They encode inhibitory receptors expressed primarily on natural killer (NK) cells and a subset of T cells. The proteins produced by these genes play a key role in regulating the immune response through their interaction with human leukocyte antigen (HLA) class I molecules, specifically HLA-C alleles. KIR2DL2 recognizes a broad range of HLA-C alleles with a lysine at position 80 (C1 group), while KIR2DL3 has a higher affinity for the HLA-C1 group. Structurally, these receptors consist of two extracellular immunoglobulin-like domains, a transmembrane region, and a long cytoplasmic tail that contains immunoreceptor tyrosine-based inhibitory motifs (ITIMs). Upon ligand binding, these receptors transmit inhibitory signals to prevent NK cell activation, thereby protecting healthy cells from immune destruction.
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