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fluorescent MIF ligand B   Click here for help

GtoPdb Ligand ID: 9987

Immunopharmacology Ligand  Ligand is labelled
Compound class: Synthetic organic
Comment: Fluorescent MIF ligand B is reported in Cisneros et al. (2016) [1]. It is a macrophage migration inhibitory factor (MIF) inhibitor tethered to fluorescein to generate a probe suitable for fluorescence polarization assay determination of dissociation constant (Kd) of MIF inhibitors as an alternative to the Ki or IC50 values that are obtained from tautomerization assays.
2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 9
Hydrogen bond donors 6
Rotatable bonds 17
Topological polar surface area 233.78
Molecular weight 881.26
XLogP 7.4
No. Lipinski's rules broken 3

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES O=C(CCCOc1cccc2c1ccc(n2)c1nnn(c1)c1ccc(c(c1)F)O)NCCCCCNC(=S)Nc1ccc2c(c1)C(=O)OC12c2ccc(cc2Oc2c1ccc(c2)O)O
Isomeric SMILES O=C(CCCOc1cccc2c1ccc(n2)c1nnn(c1)c1ccc(c(c1)F)O)NCCCCCNC(=S)Nc1ccc2c(c1)C(=O)OC12c2ccc(cc2Oc2c1ccc(c2)O)O
InChI InChI=1S/C47H40FN7O8S/c48-36-23-28(10-18-40(36)58)55-26-39(53-54-55)38-17-13-31-37(52-38)6-4-7-41(31)61-21-5-8-44(59)49-19-2-1-3-20-50-46(64)51-27-9-14-33-32(22-27)45(60)63-47(33)34-15-11-29(56)24-42(34)62-43-25-30(57)12-16-35(43)47/h4,6-7,9-18,22-26,56-58H,1-3,5,8,19-21H2,(H,49,59)(H2,50,51,64)
InChI Key BMCSDEYJDALUKV-UHFFFAOYSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Immunopharmacology Comments
Fluorescent MIF ligand B is a tracer that can be used to determine MIF binding affinity [1], and is a more reliable alternative to the commonly used, but inconsistent [2], MIF enzymatic activity assays that have been used previously. It will also facilitate the identification of MIF inhibitors that are devoid of tautomerase inhibitory action.