Inhibitors of UDP-galactopyranose mutase thwart mycobacterial growth
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作者:
Dykhuizen, Emily C.
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Univ Wisconsin, Dept Chem, Madison, WI 53706 USAUniv Wisconsin, Dept Chem, Madison, WI 53706 USA
Dykhuizen, Emily C.
[1
]
May, John F.
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Univ Wisconsin, Dept Biochem, Madison, WI 53706 USAUniv Wisconsin, Dept Chem, Madison, WI 53706 USA
May, John F.
[2
]
Tongpenyai, Aimon
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Univ Wisconsin, Dept Chem, Madison, WI 53706 USAUniv Wisconsin, Dept Chem, Madison, WI 53706 USA
Tongpenyai, Aimon
[1
]
Kiessling, Laura L.
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Univ Wisconsin, Dept Chem, Madison, WI 53706 USA
Univ Wisconsin, Dept Biochem, Madison, WI 53706 USAUniv Wisconsin, Dept Chem, Madison, WI 53706 USA
Kiessling, Laura L.
[1
,2
]
机构:
[1] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA
[2] Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA
Galactofuranose (Galf) residues are fundamental components of the cell wall of mycobacteria. A key enzyme, UDP-galactopyranose mutase (UGM), that participates in Galf incorporation mediates isomerization of UDP-Galf from UDP-galactopyranose (UDP-Galp). UGM is of special interest as a therapeutic target because the gene encoding it is essential for mycobacterial viability and there is no comparable enzyme in humans. We used structure-activity relationships and molecular design to devise UGM inhibitors. From a focused library of synthetic aminothiazoles, several compounds that block the UGM from Klebsiella pneumoniae or Mycobacterium tuberculosis were identified. These inhibitors block the growth of M. smegmatis.