Adenosine kinase (AK), a key enzyme in the regulation of the cellular concentrations of adenosine (A), is an important physiological effector of many cells and tissues. In this article, we reported that ak, which encoded adenosine kinase, was cloned from Saccharomyces cerevisiae, sequenced, and overexpressed in E. coli using the pET16b expression system, and the recombinant protein was purified to apparent homogeneity using conventional protein purification techniques. Kinetic analysis of S. cerevisiae AK revealed K(m) values of (3.5+/-0.2) micromol/L for adenosine and (100.0+/-11.0) micromol/L for ATP, with k(cat) of (1530+/-20) min(-1) for adenosine and (1448+/-25) min(-1) for ATP. The determination of the K(m) value for other nucleosides and deoxynucleoside indicated that the nucleoside specificity of this enzyme from yeast was quite high.
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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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| 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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