The use of chromogenic substrates for evaluation of class I alpha-mannosidase is described. 2('),4(')-Dinitrophenyl-alpha-D-mannopyranoside allows rapid and sensitive assays of enzymatic activities, e.g., of heterologously expressed alpha-1,2-mannosidase from Trichoderma reesei. Interaction constants of several ligands with alpha-mannosidases from class I and II could also be determined. Furthermore, novel types of inhibitors derived from D-lyxose are presented. Methyl-alpha-D-lyxopyranosyl-(1(')-->2)-alpha-D-mannopyranoside is a potent inhibitor of the alpha-1,2-mannosidase from T. reesei (K(i)=600 microM) and since it probably spans subsites -1/+1, this disaccharide could be valuable in crystallographic studies of class I alpha-mannosidases.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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