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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 - Fragment screening reveals salicylic hydroxamic acid as an inhibitor of Trypanosoma brucei GPI GlcNAc-PI de-N-acetylase
AU - Urbaniak, Michael D.
AU - Capes, Amy S.
AU - Crossman, Arthur
AU - O'Neill, Sandra
AU - Thompson, Stephen
AU - Gilbert, Ian H.
AU - Ferguson, Michael A. J.
N1 - Copyright © 2013 Elsevier Ltd. All rights reserved. This article is distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
PY - 2014/3/31
Y1 - 2014/3/31
N2 - The zinc-metalloenzyme GlcNAc-PI de-N-acetylase is essential for the biosynthesis of mature GPI anchors and has been genetically validated in the bloodstream form of Trypanosoma brucei, which causes African sleeping sickness. We screened a focused library of zinc-binding fragments and identified salicylic hydroxamic acid as a GlcNAc-PI de-N-acetylase inhibitor with high ligand efficiency. This is the first small molecule inhibitor reported for the trypanosome GPI pathway. Investigating the structure activity relationship revealed that hydroxamic acid and 2-OH are essential for potency, and that substitution is tolerated at the 4- and 5-positions.
AB - The zinc-metalloenzyme GlcNAc-PI de-N-acetylase is essential for the biosynthesis of mature GPI anchors and has been genetically validated in the bloodstream form of Trypanosoma brucei, which causes African sleeping sickness. We screened a focused library of zinc-binding fragments and identified salicylic hydroxamic acid as a GlcNAc-PI de-N-acetylase inhibitor with high ligand efficiency. This is the first small molecule inhibitor reported for the trypanosome GPI pathway. Investigating the structure activity relationship revealed that hydroxamic acid and 2-OH are essential for potency, and that substitution is tolerated at the 4- and 5-positions.
KW - GPI
KW - Trypanosoma brucei
KW - Hydroxamic acid
KW - Inhibitor
KW - N-Deacetylase
U2 - 10.1016/j.carres.2013.12.016
DO - 10.1016/j.carres.2013.12.016
M3 - Journal article
C2 - 24589444
VL - 387
SP - 54
EP - 58
JO - Carbohydrate Research
JF - Carbohydrate Research
SN - 0008-6215
ER -