Lisofylline (1-(5-R-hydroxyhexyl)-3,5-dimethylxanthine (LSF)) is a new methylxanthine, a stereospecific isomer which is a metabolite of pentoxifylline (1-(5-oxohexyl)-3,5-dimethylxanthine (PTX)). Alcohol dehydrogenases (E.C. 1.1.X.Y.) are enzymes that catalyze the oxidation and reduction of hydroxyl and carbonyl compounds. They may be employed either as crude or purified enzymes or as components of whole cells. The aim of this study was to explore the stereoselective bioreduction of PTX in the presence of whole cell baker's and wine yeasts, which function as biocatalysts in the production of LSF. The experiments were conducted in water and a number of organic solvents (toluene, hexane, ethyl acetate), and we obtained LSF with different yields and ee values. Our research demonstrated that the highest activity is shown when the KKPU strain is used in an aqueous medium. The biotransformation of PTX into LSF in this case was characterized by high yield and enantioselectivity: 95% and ee = 98%, respectively.
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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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