FMP Publications

Our publications are recorded in a searchable database since 2010, updates will be added regularly.

All :: 2016, 2017
All :: (, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z 
All :: Nadler(*), ... , Neumann(*), Nguyen(*), Ni(*), ... , Nykjaer(*) 
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Small Molecules Targeting Human N-Acetylmannosamine Kinase
Hinderlich(*), S., Neuenschwander, M., Wratil(*), P. R., Oder, A., Lisurek, M., Nguyen(*), L. D., von Kries, J. P.; Hackenberger, C. P. R.

Tags: Chemical Biology II (Hackenberger), Screening Unit ( von Kries)

Abstract: N-Acetylmannosamine kinase (MNK) plays a key role in the biosynthesis of sialic acids and glycosylation of proteins. Sialylated glycoconjugates affect a large number of biological processes, including immune modulation and cancer transformation. In search of effective inhibitors of MNK we applied high-throughput screening of drug-like small molecules. By applying different orthogonal assays for their validation we identified four potential MNK-specific inhibitors with IC50 values in the low-micromolar range. Molecular modelling of the inhibitors into the active site of MNK supports their binding to the sugar or the ATP-binding pocket of the enzyme or both. These compounds are promising for downregulation of the sialic acid content of glycoconjugates and for studying the functional contribution of sialic acids to disease development.


Inhibition of the key enzyme of sialic acid biosynthesis by C6-Se modified N-acetylmannosamine analogs
Nieto-Garcia, O., Wratil(*), P. R., Nguyen(*), L. D., Bohrsch(*), V., Hinderlich(*), S., Reutter(*), W.; Hackenberger, C. P. R.
Chem Sci, 7:3928-3933

Tags: Chemical Biology II (Hackenberger)

Abstract: Synthetically accessible C6-analogs of N-acetylmannosamine (ManNAc) were tested as potential inhibitors of the bifunctional UDP-N-acetylglucosamine-2-epimerase/N-acetylmannosamine kinase (GNE/MNK), the key enzyme of sialic acid biosynthesis. Enzymatic experiments revealed that the modification introduced at the C6 saccharide position strongly influences the inhibitory potency. A C6-ManNAc diselenide dimer showed the strongest kinase inhibition in the low mu M range among all the substrates tested and successfully reduced cell surface sialylation in Jurkat cells.

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Leibniz-Forschungsinstitut für Molekulare Pharmakologie im Forschungsverbund Berlin e.V. (FMP)
Campus Berlin-Buch
Robert-Roessle-Str. 10
13125 Berlin, Germany
+4930 94793 - 100 
+4930 94793 - 109 (Fax)

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