Immunofluorescent analysis of KIR2DL4 showing staining in the cytoplasm of HeLa cells. HeLa cells were fixed in 4% paraformaldehyde at RT for 15 min and stained using a KIR2DL4 polyclonal antibody (Product # PA5-28190) diluted at 1:500. Blue: Hoechst 33342 staining.
|Tested species reactivity||Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Recombinant fragment corresponding to a region within amino acids 1 and 254 of Human KIR2DL4|
|Purification||Antigen affinity chromatography|
|Storage buffer||0.1M tris glycine, pH 7, with 10% glycerol|
|Storage Conditions||-20° C, Avoid Freeze/Thaw Cycles|
|Tested Applications||Dilution *|
|Immunohistochemistry (Paraffin) (IHC (P))||1:100-1:1000|
|Western Blot (WB)||1:500-1:3000|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
PA5-28190 targets KIR2DL4 in IHC (P) and WB applications and shows reactivity with Human samples.
The PA5-28190 immunogen is recombinant fragment corresponding to a region within amino acids 1 and 254 of Human KIR2DL4.
Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. This gene is one of the "framework" loci that is present on all haplotypes. Alternative splicing results in multiple transcript variants.
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