Human CX3CL1/Fractalkine Protein


SDS-Page: Human CX3CL1/Fractalkine Protein [NBP2-34874]

Product Details

Reactivity HuSpecies Glossary
Applications Func, PAGE

Order Details

Human CX3CL1/Fractalkine Protein Summary

A single, non-glycosylated biologically active polypeptide chain consisting of chemokin domain of Human Fractalkine and corresponding to 76 residues of CX3CL1.

Source: E. coli


Novus' biologically active proteins are stringently purified to provide only the safest and most highly effective proteins available. This protein was expressed in E. coli, purified by HPLC, QC tested by SDS-PAGE and Western Blot and validated on appropriate cell lines for bioactivity. All HPLC and bioactivity data is provided for your assurance.
Details of Functionality
CX3CL1 Protein is fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human T-lymphocytes is in a concentration of 5.0-10 ng/ml.
Size Exclusion Chromatography
Endotoxin Note
Less than 1 EU/ug of endotoxin as determined by LAL method

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
Size Exclusion Chromatography
Reconstitution Instructions
Reconstitute with sterilized distilled water or 0.1% BSA aqueous buffer to a final concentration of 0.1 - 1.0 mg/ml.


Theoretical MW
8.6 kDa


This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Alternate Names for Human CX3CL1/Fractalkine Protein

  • ABCD-3
  • C3Xkine
  • chemokine (C-X3-C motif) ligand 1
  • CX3C membrane-anchored chemokine
  • CXC3
  • CXC3C
  • FKN
  • Fractalkine
  • Fractalkine/CX3CL1
  • Neurotactin
  • neurotactin)
  • NTNsmall inducible cytokine subfamily D (Cys-X3-Cys), member 1 (fractalkine
  • NTTSmall-inducible cytokine D1
  • SCYD1C-X3-C motif chemokine 1
  • small inducible cytokine subfamily D (Cys-X3-Cys), member-1


CX3CL1 recently identified through bioinformatics is the only known member of the CX3C chemokine family and it is also commonly known under the names fractalkine (in humans) and neurotactin (in mice). Unlike other known chemokines, CX3CL1 is a type 1 membrane protein containing a chemokine domain tethered on a long mucinlike talk. The soluble form of CX3CL1 is chemotactic for T-cells and monocytes, but not for neutrophils. In addition, it may play a role in regulating leukocyte adhesion and migration processes at the endothelium. Recombinant Human CX3CL1 which is a single non-glycosylated polypeptide chains contains 76 amino acids and it shares approximately 78 % and 83 % amino acid sequence homology with the murine and rat protein.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 2 years from date of receipt.

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Contact Information

Product PDFs


Gene Symbol CX3CL1

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