Canine Fractalkine / CX3CL1 Protein (His Tag)

CX3CL1

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Catalog Number	P70071-D08H
Organism Species	Canine
Host	Human Cells
Synonyms	CX3CL1
Molecular Weight	The recombinant canine CX3CL1 consists of 366 amino acids and predicts a molecular mass of 38.9 kDa.
predicted N	Gln 25
SDS-PAGE
Purity	> 95 % as determined by SDS-PAGE.
Protein Construction	A DNA sequence encoding the canine CX3CL1 (NP_001271385.1) (Met1-Gly100) was expressed with a polyhistidine tag at the C-terminus.
Bio-activity
Research Area	Cardiovascular |Atherosclerosis |Vascular Inflammation |Leukocyte recruitment |Chemokines in Leukocyte recruitment
Formulation	Lyophilized from sterile PBS, pH 7.4. 1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background	Fractalkine or Chemokine (C-X3-C motif) ligand 1 (CX3CL1) is a member of the CX3C chemokine family. Fractalkine / CX3CL1 is a unique chemokine that functions not only as a chemoattractant but also as an adhesion molecule and is expressed on endothelial cells activated by proinflammatory cytokines, such as interferon-gamma and tumor necrosis factor-alpha. Fractalkine/CX3CL1 is expressed in a membrane-bound form on activated endothelial cells and mediates attachment and firm adhesion of T cells, monocytes and NK cells. Fractalkine / CX3CL1 is associated with dendritic cells (DC) in epidermis and lymphoid organs. The fractalkine receptor, CX3CR1, is expressed on cytotoxic effector lymphocytes, including natural killer (NK) cells and cytotoxic T lymphocytes, which contain high levels of intracellular perforin and granzyme B, and on macrophages. Soluble fractalkine causes migration of NK cells, cytotoxic T lymphocytes, and macrophages, whereas the membrane-bound form captures and enhances the subsequent migration of these cells in response to secondary stimulation with other chemokines.
Reference	Imai T, et al. (1997) Identification and molecular characterization of fractalkine receptor CX3CR1, which mediates both leukocyte migration and adhesion. Cell. 91(4): 521-30. Papadopoulos EJ, et al. (1999) Fractalkine, a CX3C chemokine, is expressed by dendritic cells and is up-regulated upon dendritic cell maturation. Eur J Immunol. 29 (8): 2551-9. Umehara H, et al. (2004) Fractalkine in vascular biology: from basic research to clinical disease". Arterioscler. Thromb Vasc Biol. 24 (1): 34-40.