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F135

Sigma-Aldrich

Fractalkine, Extracellular Domain human

≥97% (SDS-PAGE), recombinant, expressed in NSO cells, suitable for cell culture, lyophilized powder

Synonym(s):

CX3CL-1, Neurotactin

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About This Item

MDL number:
UNSPSC Code:
51111800
NACRES:
NA.32

biological source

human

Quality Level

recombinant

expressed in NSO cells

Assay

≥97% (SDS-PAGE)

form

lyophilized powder

potency

22.62 ng/mL

mol wt

~90 kDa

packaging

pkg of 25 μg

storage condition

avoid repeated freeze/thaw cycles

technique(s)

cell culture | mammalian: suitable

impurities

endotoxin, tested

UniProt accession no.

storage temp.

−20°C

Gene Information

human ... CX3CL1(6376)

General description

CX3CL1 (chemokine (C-X3-C motif) ligand 1) or fractalkine is a membrane protein, which is the only member of CXC3 family. Its chemokine domain (CKD) anchors it to the cell membrane through its mucin-like stalk. It acts as a ligand for the G-protein coupled receptor CX3CR1, which is found on smooth muscle cells, T-cells, natural killer (NK) cells and monocytes. Fractalkine is expressed on epithelial, endothelial and smooth muscle cells and neurons.

Biochem/physiol Actions

CX3CL1 (chemokine (C-X3-C motif) ligand 1) or fractalkine, along with CX3CR1 is involved in various disorders such as atherosclerosis, multiple sclerosis, neuropathic pain and rheumatic disorders. It facilitates the proliferation and survival of primary human vascular smooth muscle cells in an epidermal growth factor receptor (EGR)-dependent manner. It plays an essential role in cell survival and promotes the survival of cells such as monocytes, T-cells and microglia. In humans, it is thought to be involved in atherogenesis, and thus, might have potential as a target in treatment of cardiovascular disease. In patients with sickle cell disease (SCD), the serum levels of this chemokine is increased, thus implicating it in the pathogenesis of inflammation associated with SCD.

Physical form

Lyophilized from a 0.2 μm-filtered solution in PBS containing 50 μg bovine serum albumin per 1 μg of cytokine

Analysis Note

Biological activity is measured by its ability to chemoattract freshly isolated peripheral blood lymphocytes or mouse BaF/3 cells transfected with hCX3CR-1.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Jian Wang et al.
Molecular medicine reports, 24(6) (2021-10-06)
Angina pectoris is cardiac pain that is a common clinical symptom often resulting from myocardial ischemia. Spinal cord stimulation (SCS) is effective in treating refractory angina pectoris, but its underlying mechanisms have not been fully elucidated. The spinal dorsal horn
Gemma E White et al.
Arteriosclerosis, thrombosis, and vascular biology, 34(12), 2554-2562 (2014-11-02)
The CX3C chemokine fractalkine (CX3CL1) has a critical role in the development of atherogenesis because apolipoprotein-E-deficient mice lacking CX3CL1 or its receptor CX3CR1 develop smaller plaques and polymorphisms in CX3CR1 are associated with altered risk of cardiovascular disease. CX3CR1 is
Selma Unal et al.
International journal of hematology, 101(2), 114-118 (2014-12-07)
In the present study, we examined the role of fractalkine (Fkn), a member of the chemokine family, in the pathogenesis of sickle cell disease (SCD). Eighty-seven children with sickle cell disease and 55 healthy children were enrolled in the study.

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