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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Distinguishing mammalian sialidases by inhibition kinetics with novel derivatives of 5-acetamido-2,6-anhydro-3,5-dideoxy-D-glycero-D-galacto-non-2-enonic acid, an unsaturated derivative of N-acetylneuraminic acid.

Kinetic analysis of mammalian sialidases was carried out using analogs of the potent sialidase inhibitor, 5-acetamido-2,6-anhydro-3,5-dideoxy-D-glycero-D-galacto-non-2-enonic+ ++ acid (1). Substitutents at C-9 in place of the terminal hydroxyl group included a, 4-azido-2-nitrophenylthio group to give 5-acetamido-2,6-anhydro-9-S-(4-azido-2-nitrophenyl)-3,5, 9-trideoxy-9-thio-D-glycero-D-galacto-non-2-enonic acid (2), and an azide group to give 5-acetamido-2,6-anhydro-9-azido-3,5,9-trideoxy-D-glycero-D-galacto-non-2 -enonic acid (3). Competitive inhibition kinetics were observed when 1,2, and 3 were tested with the lysosomal sialidase (cultured fibroblasts) and the plasma membrane sialidase (adenovirus DNA-transformed, human embryonic kidney cells), giving a Ki of about 10 microM for both enzymes with all three compounds. In contrast, only 1 was a potent inhibitor of the microsomal sialidase (rat muscle).[1]

References

  1. Distinguishing mammalian sialidases by inhibition kinetics with novel derivatives of 5-acetamido-2,6-anhydro-3,5-dideoxy-D-glycero-D-galacto-non-2-enonic acid, an unsaturated derivative of N-acetylneuraminic acid. Warner, T.G., Louie, A., Potier, M., Ribeiro, A. Carbohydr. Res. (1991) [Pubmed]
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