MIF active protein
Human MIF
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a lymphokine involved in cell-mediated immunity, immunoregulation, and inflammation. It plays a role in the regulation of macrophage function in host defense through the suppression of anti-inflammatory effects of glucocorticoids. This lymphokine and the JAB1 protein form a complex in the cytosol near the peripheral plasma membrane, which may indicate an additional role in integrin signaling pathways. [provided by RefSeq, Jul 2008]
Uniprot Description
Function: Pro-inflammatory cytokine. Involved in the innate immune response to bacterial pathogens. The expression of MIF at sites of inflammation suggests a role as mediator in regulating the function of macrophages in host defense. Counteracts the anti-inflammatory activity of glucocorticoids. Has phenylpyruvate tautomerase and dopachrome tautomerase activity (in vitro), but the physiological substrate is not known. It is not clear whether the tautomerase activity has any physiological relevance, and whether it is important for cytokine activity. Ref.23 Ref.24 Ref.36
Catalytic activity: Keto-phenylpyruvate = enol-phenylpyruvate. Ref.33 Ref.35 Ref.36L-dopachrome = 5,6-dihydroxyindole-2-carboxylate. Ref.33 Ref.35 Ref.36
Subunit structure: Homotrimer. Interacts with CXCR2 extracellular domain
By similarity. Interacts with the CD74 extracellular domain, COPS5 and BNIPL. Ref.18 Ref.21 Ref.22 Ref.25 Ref.34 Ref.35 Ref.36
Subcellular location: Secreted. Cytoplasm. Note: Does not have a cleavable signal sequence and is secreted via a specialized, non-classical pathway. Secreted by macrophages upon stimulation by bacterial lipopolysaccharide (LPS), or by M.tuberculosis antigens. Ref.1 Ref.2 Ref.18 Ref.23 Ref.25
Induction: Up-regulated in concanavalin-A-treated lymphocytes. Up-regulated in macrophages upon exposure to M.tuberculosis antigens. Ref.1 Ref.23
Involvement in disease: Rheumatoid arthritis systemic juvenile (RASJ) [MIM:604302]: An inflammatory articular disorder with systemic-onset beginning before the age of 16. It represents a subgroup of juvenile arthritis associated with severe extraarticular features and occasionally fatal complications. During active phases of the disorder, patients display a typical daily spiking fever, an evanescent macular rash, lymphadenopathy, hepatosplenomegaly, serositis, myalgia and arthritis.Note: Disease susceptibility is associated with variations affecting the gene represented in this entry.
Miscellaneous: Serum levels of MIF are elevated in patients with severe sepsis or septic shock. High levels of MIF are correlated with low survival. Drugs that inhibit tautomerase activity protect against death due to sepsis.
Sequence similarities: Belongs to the MIF family.
Biophysicochemical propertiesKinetic parameters:KM=249 µM for phenylpyruvate Ref.20KM=168 µM for p-hydroxyphenylpyruvateVmax=2113 µmol/min/mg enzyme toward phenylpyruvateVmax=524 µmol/min/mg enzyme toward p-hydroxyphenylpyruvate
Research Articles on MIF
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Product Notes
The MIF mif (Catalog #AAA692071) is an Active Protein produced from Insect Cells and is intended for research purposes only. The product is available for immediate purchase. The Human MIF reacts with Human and may cross-react with other species as described in the data sheet. The amino acid sequence is listed below: HHHHHHHHAM PMFIVNTNVP RASVPDGFLS ELTQQLAQAT GKPPQY IAVH VVPDQLMAFG GSSEPCALCS LHSIGKIGGA QNRSYSKLLC G LLAERLRIS PDRVYINYYD MNAANVGWNN STFA. It is sometimes possible for the material contained within the vial of "MIF, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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