CX3CR1 is a 40kD member of the delta-group of rhodopsin GPCRs. It is expressed on astrocytes, microglia, macrophages, Th1 and Tc1 T cells, NK cells, mouse Gr1lo monocytes plus smooth muscle and mast cells. CX3CR1 mediates adhesion to fractalkine, promotes avid binding of integrins to their ligands, and extends the life of monocytes. Mouse CX3CR1 is a 7-transmembrane protein that is 354aa in length. It contains a 32aa N-terminal extracellular region that shows no glycosylation, and a 56aa C-terminal cytoplasmic domain. Over aa1-32, 91-104, 169-196 and 258-274 collectively, mouse CX3CR1 shares 96% and 77% aa identity with rat and human CX3CR1, respectively.
Applications
Suitable for use in Flow Cytometry and Western Blot. Other applications not tested.
Recommended Dilutions
Flow Cytometry: 2.5ug labels 10e6 cells. Validated with M1 mouse myeloid leukemia cell line. Western Blot: 1ug/ml detected CX3CR1 in mouse myeloid leukemia cell line and NK-92 human natural killer lymphoma cell line Optimal dilutions to be determined by the researcher.
Storage and Stability
Lyophilized and reconstituted products are stable for 12 months after receipt at -20°C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Immunogen
Recombinant protein corresponding to Met1-Thr32, Leu92-Lys104, Thr169-Val196, Lys258-Leu274 from mouse CX3CR1 expressed in E. coli.
Form
Supplied as a lyophilized powder from PBS, pH 7.4, 5% trehalose. Reconstitute in 500ul sterile PBS.
Purity
Purified by immunoaffinity chromatography.
Specificity
Recognizes mouse CX3CR1. Species Crossreactivity: human.