CXCL9, a member of the alpha subfamily of chemokines that lack the ELR domain, was initially identified as a lymphokine-activated gene in mouse macrophages. Human CXCL9 was subsequently cloned using mouse MIG cDNA as a probe. The CXCL9 gene is induced in macrophages and in primary glial cells of the central nervous system specifically in response to IFN-gamma. CXCL9 has been shown to be a chemoattractant for activated T‑lymphocytes and TIL but not for neutrophils or monocytes. The human CXCL9 cDNA encodes a 125 amino acid residue precursor protein with a 22 amino acid residue signal peptide that is cleaved to yield a 103 amino acid residue mature protein. CXCL9 has an extended carboxy‑terminus containing greater than 50% basic amino acid residues and is larger than most other chemokines. The carboxy‑terminal residues of CXCL9 are prone to proteolytic cleavage resulting in size heterogeneity of natural and recombinant CXCL9. CXCL9 with large carboxy‑terminal deletions have been shown to have diminished activity in the calcium flux assay. A chemokine receptor (CXCR3) specific for CXCL9 and IP-10 has been cloned and shown to be highly expressed in IL-2-activated T‑lymphocytes. The E. coli‑expressed CXCL9 preparations produced at R&D Systems have been shown to contain greater than 80% full length CXCL9.
Recombinant Human CXCL9/MIG Protein
R&D Systems | Catalog # 392-MG
Key Product Details
- R&D Systems E. coli-derived Recombinant Human CXCL9/MIG Protein (392-MG)
- Quality control testing to verify active proteins with lot specific assays by in-house scientists
- All R&D Systems proteins are covered with a 100% guarantee
Source
Accession Number
Applications
Product Specifications
Source
Thr23-Thr125
Purity
Endotoxin Level
N-terminal Sequence Analysis
Predicted Molecular Mass
Activity
The ED50 for this effect is 35.0-350 ng/mL.
Reviewed Applications
Read 2 reviews rated 5 using 392-MG in the following applications:
Formulation, Preparation, and Storage
Carrier Free
What does CF mean?CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
What formulation is right for me?In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
Carrier: 392-MG
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Carrier Free: 392-MG/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Calculators
Background: CXCL9/MIG
References
- Loetscher, M. et al. (1996) J. Exp. Med. 184:963.
- Liao, F. et al. (1995) J. Exp. Med. 182:1301.
- Vanguri, P. (1995) J. Neuroimmunol. 56:35.
Alternate Names
Gene Symbol
UniProt
Additional CXCL9/MIG Products
Product Documents for Recombinant Human CXCL9/MIG Protein
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Recombinant Human CXCL9/MIG Protein
For research use only
Citations for Recombinant Human CXCL9/MIG Protein
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Customer Reviews for Recombinant Human CXCL9/MIG Protein (2)
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Customer Images
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Application: Binding assay.Verified Customer | Posted 03/11/2025
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Application: Immunoassay StandardVerified Customer | Posted 12/06/2017MAB392 was used as a capture in a sandwich ELISA for MIG. The detection antibody was BAM392. The standard was 392-MG-010. Sensitivity was around 5 pg/ml.
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