MIF Antibody [Alexa Fluor™ Plus 405]

• Reactivity: Hu, Mu, Rt
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Alexa Fluor Plus 405

MIF Antibody [Alexa Fluor™ Plus 405] Summary

• Specificity: Detects human, mouse, and rat MIF in Western blots.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for MIF Antibody [Alexa Fluor™ Plus 405]

• EC 5.3.2.1
• EC 5.3.3.12
• GIFmacrophage migration inhibitory factor
• GLIF
• Glycosylation-inhibiting factor
• L-dopachrome isomerase
• L-dopachrome tautomerase
• macrophage migration inhibitory factor (glycosylation-inhibiting factor)
• MIF
• MMIF
• Phenylpyruvate tautomerase

Background

MIF (or macrophage migration inhibitory factor) was the first lymphokine/cytokine to be recognized in the pregenomics era (1, 2). Regardless, it is one of the least understood of all inflammatory mediators (1, 3). Human MIF is a 12.5 kDa, 115 amino acid (aa) nonglycosylated polypeptide that is synthesized without a signal sequence (4-7). Secretion occurs non-classically via an ABCA1 transporter (8). The initiating Met is removed, leaving Pro as the first amino acid. The molecule consists of two alpha -helices and six beta -strands, four of which form a beta -sheet. The two remaining beta -strands interact with other MIF molecules, creating a trimer (2, 9, 10). Structure-function studies suggest MIF is bifunctional with segregated topology. The N- and C-termini mediate enzyme activity (in theory). Phenylpyruvate tautomerase activity (enol-to-keto) has been demonstrated and is dependent upon Pro at position #1 (11). Amino acids 50-65 have also been suggested to contain thiol-protein oxidoreductase activity (12). MIF has proinflammatory cytokine activity centered around aa’s 49-65. On fibroblasts, MIF induces, IL-1, IL-8, and MMP expression; on macrophages, MIF stimulates NO production and TNF-alpha release following IFN-gamma activation (13, 14). MIF apparently acts through CD74 and CD44, likely in some form of trimeric interaction (15, 16). Human MIF is active on mouse cells (14). Human MIF is 90%, 94%, 95%, and 90% aa identical to mouse, bovine, porcine, and rat MIF, respectively.

1. Norand, E.F. and M. Leech (2005) Front. Biosci. 10:12.
2. Donn, R.P. and D.W. Ray (2004) J. Endocrinol. 182:1.
3. Calandra, T. and T. Roger (2003) Nat. Rev. Immunol. 3:791.
4. Kozak, C.A. et al. (1995) Genomics 27:405.
5. Weiser, W.Y. et al. (1989) Proc. Natl. Acad. Sci. USA 86:7522.
6. Paralkar, V. and G. Wistow (1994) Genomics 19:48.
7. Wistow, G.J. et al. (1993) Proc. Natl. Acad. Sci. USA 90:1272.
8. Flieger, O. et al. (2003) FEBS Lett. 551:78.
9. Philo, J.S. et al. (2004) Biophys. Chem. 108:77.
10. Sun, H-W. et al. (1996) Protein Eng. 9:631.
11. Stamps, S.L. et. al. (2000) Biochemistry 39:9671.
12. Nguyen, M.T. et al. (2003) J. Biol. Chem. 278:33654.
13. Sato, A. et al. (2003) Dev. Comp. Immunol. 27:401.
14. Bernhagen, J. et al. (1994) Biochemistry 33:14144.
15. Leng, L. et al. (2003) J. Exp. Med. 197:1467.
16. Meyer-Siegler, K.L. and P.L. Vera (2005) J. Urol. 173:615.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.