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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Computer-aided identification of Trypanosoma brucei uridine diphosphate galactose 4'-epimerase inhibitors
T2 - toward the development of novel therapies for African sleeping sickness
AU - Durrant, Jacob D.
AU - Urbaniak, Michael D.
AU - Ferguson, Michael A. J.
AU - McCammon, J. Andrew
N1 - ACS Author choice under CC-BY
PY - 2010/7/8
Y1 - 2010/7/8
N2 - Trypanosoma brucei, the causative agent of human African trypanosomiasis, affects tens of thousands of sub-Saharan Africans. As current therapeutics are inadequate due to toxic side effects, drug resistance, and limited effectiveness, novel therapies are urgently needed. UDP-galactose 4'-epimerase (TbGalE), an enzyme of the Leloir pathway of galactose metabolism, is one promising T. brucei drug target. We here use the relaxed complex scheme, an advanced computer-docking methodology that accounts for full protein flexibility, to identify inhibitors of TbGalE. An initial hit rate of 62% was obtained at 100 microM, ultimately leading to the identification of 14 low-micromolar inhibitors. Thirteen of these inhibitors belong to a distinct series with a conserved binding motif that may prove useful in future drug design and optimization.
AB - Trypanosoma brucei, the causative agent of human African trypanosomiasis, affects tens of thousands of sub-Saharan Africans. As current therapeutics are inadequate due to toxic side effects, drug resistance, and limited effectiveness, novel therapies are urgently needed. UDP-galactose 4'-epimerase (TbGalE), an enzyme of the Leloir pathway of galactose metabolism, is one promising T. brucei drug target. We here use the relaxed complex scheme, an advanced computer-docking methodology that accounts for full protein flexibility, to identify inhibitors of TbGalE. An initial hit rate of 62% was obtained at 100 microM, ultimately leading to the identification of 14 low-micromolar inhibitors. Thirteen of these inhibitors belong to a distinct series with a conserved binding motif that may prove useful in future drug design and optimization.
KW - Animals
KW - Cell Line
KW - Cell Proliferation
KW - Drug Design
KW - Enzyme Inhibitors
KW - Humans
KW - Inhibitory Concentration 50
KW - Molecular Dynamics Simulation
KW - Trypanocidal Agents
KW - Trypanosoma brucei brucei
KW - Trypanosomiasis, African
KW - UDPglucose 4-Epimerase
U2 - 10.1021/jm100456a
DO - 10.1021/jm100456a
M3 - Journal article
C2 - 20527952
VL - 53
SP - 5025
EP - 5032
JO - Journal of Medicinal Chemistry
JF - Journal of Medicinal Chemistry
SN - 1520-4804
IS - 13
ER -