5j7q

Macrophage Migration Inhibitory Factor bound to Inhibitor K664 Derivative

spinqualitylabelsall models 5j7q, resolution 2.05Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5j7q is a 3 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.05Å Ligands: 6H2, GOL, IPA, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Disease MIF_HUMAN Genetic variations in MIF are associated with susceptibility to 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. Function MIF_HUMAN 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. Publication Abstract from PubMed Inhibitors of human macrophage migration inhibitory factor (MIF) previously reported in the literature have been reexamined by synthesis, assaying for tautomerase activity, and protein crystallography. Substantial inconsistencies between prior and current assay results are noted. They appear to arise from difficulties with the tautomerase substrates, solubility issues, and especially covalent inhibition. Incubation time variation shows that 3, 4, 6, and 9 are covalent or slow-binding inhibitors. Two protein crystal structures are provided; one confirms that the twice-discovered 3 is a covalent inhibitor. Irregularities in enzyme assays: The case of macrophage migration inhibitory factor.,Cisneros JA, Robertson MJ, Valhondo M, Jorgensen WL Bioorg Med Chem Lett. 2016 Jun 15;26(12):2764-7. doi: 10.1016/j.bmcl.2016.04.074., Epub 2016 Apr 26. PMID:27156768 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Macrophage inhibitory factor 3D structures

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