Human CXCL9/MIG Alexa Fluor® 405-conjugated Antibody

Catalog # Availability Size / Price Qty
IC392V-100UG
R&D Systems Antibodies
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Human CXCL9/MIG Alexa Fluor® 405-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human CXCL9/MIG in ELISAs and Western blots. In ELISAs, does not cross-react with recombinant mouse (rm) CXCL9, recombinant human CXCL10.
Source
Monoclonal Mouse IgG1 Clone # 49106
Immunogen
E. coli-derived recombinant human CXCL9/MIG
Thr23-Thr125
Accession # Q07325
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Label
Alexa Fluor 405 (Excitation= 405 nm, Emission= 421 nm)

Applications

Recommended Concentration
Sample
Intracellular Staining by Flow Cytometry
0.25-1 µg/106 cells
THP-1 cells treated with Recombinant Human IFN‑ gamma (Catalog # 285‑IF), fixed with paraformaldehyde, and permeabilized with saponin

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: CXCL9/MIG

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 (aa) residue precursor protein with a 22 aa residue signal peptide that is cleaved to yield a 103 aa residue mature protein. CXCL9 has an extended carboxy-terminus containing greater than 50% basic aa 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.

References
  1. Loetscher, M. et al. (1996) J. Exp. Med. 184:963.
  2. Liao, F. et al. (1995) J. Exp. Med. 182:1301.
  3. Vanguri, P. (1995) J. Neuroimmunol. 56:35.
Entrez Gene IDs
4283 (Human); 17329 (Mouse); 246759 (Rat)
Alternate Names
chemokine (C-X-C motif) ligand 9; CMK; crg-10; C-X-C motif chemokine 9; CXCL9; Gamma-interferon-induced monokine; Humig; MIG; MIGSmall-inducible cytokine B9; monokine induced by gamma interferon; SCYB9Monokine induced by interferon-gamma

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