Synergistic Inhibition of Human α-1,3-Fucosyltransferase V
摘要:
Human alpha-1,3-fucosyltransferase V (FucT V), which catalyzes the transfer of L-fucose moiety from guanosine diphosphate beta-L-fucose (GDP-Fuc) to an acceptor sugar To form sialyl Lewis x (sLe(x)), was shown to proceed through an ordered, sequential mechanism by product inhibition studies. The designed azatrisaccharide propyl 2-acetamido-2-deoxy-4-O-(beta-D-galactopyranosyl)-3 -O-(2-(N-(beta-L-homofuconojirimycinyl))ethyl)-alpha-D- glucopyranoside (2), prepared by covalently linking the N-group of beta-L-homofuconojirimycin (1) to the 3-OH of LacNAc through an ethylene unit, in the presence of GDP was found to be an effective inhibitor of FucT V. In the presence of 30 mu M GDP, the concentration of 2 necessary to cause 50% inhibition was reduced 77-fold to 31 mu M. Presumably, the azatrisaccharide and GDP form a complex which mimics the transition state of the enzymatic reaction. Given the low affinity of FucT V for its substrate LacNAc (K-m = 35 mM), the designed azatrisaccharide in the presence of GDP represents the most potent synergistic inhibitor complex reported so far.
Iminoheptitols as glycosidase inhibitors: synthesis of and specific α-L-fucosidase inhibition by β-L-homofuconojirimycin and 1-β-C-substituted deoxymannojirimycins
Synthesis of Azasugars through a Proline-Catalyzed Reaction
作者:Félix Calderón、Elisa G. Doyagüez、Alfonso Fernández-Mayoralas
DOI:10.1021/jo060568b
日期:2006.8.1
We report an efficient route to obtain azasugars from the enantiomerically pure l- and d-diethyltartrate. The key step is a proline-catalyzed aldol condensation, in which both enantiomers of proline have been used as catalyst, affording complementary anti-aldol products.
Rapid Diversity-Oriented Synthesis in Microtiter Plates for In Situ Screening: Discovery of Potent and Selectiveα-Fucosidase Inhibitors
作者:Chung-Yi Wu、Chuan-Fa Chang、Jenny Szu-Yu Chen、Chi-Huey Wong、Chun-Hung Lin
DOI:10.1002/anie.200351823
日期:2003.10.6
FLEET, G. W. J.;NAMGOONG, S. K.;BARKER, C.;BAINES, S.;JACOB, G. S.;WINCHE+, TETRAHEDRON LETT. , 30,(1989) N3, C. 4439-4442
作者:FLEET, G. W. J.、NAMGOONG, S. K.、BARKER, C.、BAINES, S.、JACOB, G. S.、WINCHE+
DOI:——
日期:——
Iminoheptitols as glycosidase inhibitors: synthesis of and specific α-L-fucosidase inhibition by β-L-homofuconojirimycin and 1-β-C-substituted deoxymannojirimycins
Synergistic Inhibition of Human α-1,3-Fucosyltransferase V
作者:Lei Qiao、Brion W. Murray、Makoto Shimazaki、Jody Schultz、Chi-Huey Wong
DOI:10.1021/ja960274f
日期:1996.1.1
Human alpha-1,3-fucosyltransferase V (FucT V), which catalyzes the transfer of L-fucose moiety from guanosine diphosphate beta-L-fucose (GDP-Fuc) to an acceptor sugar To form sialyl Lewis x (sLe(x)), was shown to proceed through an ordered, sequential mechanism by product inhibition studies. The designed azatrisaccharide propyl 2-acetamido-2-deoxy-4-O-(beta-D-galactopyranosyl)-3 -O-(2-(N-(beta-L-homofuconojirimycinyl))ethyl)-alpha-D- glucopyranoside (2), prepared by covalently linking the N-group of beta-L-homofuconojirimycin (1) to the 3-OH of LacNAc through an ethylene unit, in the presence of GDP was found to be an effective inhibitor of FucT V. In the presence of 30 mu M GDP, the concentration of 2 necessary to cause 50% inhibition was reduced 77-fold to 31 mu M. Presumably, the azatrisaccharide and GDP form a complex which mimics the transition state of the enzymatic reaction. Given the low affinity of FucT V for its substrate LacNAc (K-m = 35 mM), the designed azatrisaccharide in the presence of GDP represents the most potent synergistic inhibitor complex reported so far.