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The progression of cell cycle in eukaryotes is controlled by protein complexes composed of p34 protein kinase and cyclin subunits. Recently, we have described four B1 type mitotic cyclin in yellow lupine. The presence of several closely related cyclin genes within the same plant species raised the question about tissue specificity of respective cyclins or their different regulations by plant-specific...
Adenosine nucleosidase from yellow lupin (Lupinus luteus) seeds has been purified to homogeneity. The enzyme catalyzes the hydrolysis of purine nucleosides to the base and the sugar. The enzyme was purified 146-fold to yield a specific activity of 6.6 μmol/min mg. The best substrate was 5′-deoxyadenosine followed by adenosine, 2′-deoxyadenosine, and guanosine. Protonation of N7 appears to be a requirement...
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