- The last step of kanamycin biosynthesis: Unique deamination reaction catalyzed by the α-ketoglutarate-dependent nonheme iron dioxygenase KanJ and the NADPH-dependent reductase KanK
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Mystery solved: Using heterologous expression, the activities of two enzymes exclusively belonging to the kanamycin biosynthetic pathway have been identified in vitro. A distinctive reaction mechanism (see scheme) to produce kanamycin is proposed and the previously unknown catalytic deamination activity of KanJ dioxygenase is uncovered. Copyright
- Sucipto, Hilda,Kudo, Fumitaka,Eguchi, Tadashi
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supporting information; experimental part
p. 3428 - 3431
(2012/06/30)
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- Method for apparatus for a defined serumfree medical solution useful for corneal preservation
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A defined serumfree medical solution for applications in Ophthalmology, that contains one or more cell nutrient supplements which maintains and enhances the preservation of eye tissues, including human corneal tissues at low temperatures (2° C. to 15° C.). This solution is composed of a defined aqueous nutrient and electrolyte solution, supplemented with a glycosaminoglycan(s), a deturgescent agent(s), an energy source(s), a buffer system(s), an antioxidant(s), membrane stabilizing components, antibiotic(s), ATP precursors and nutrient cell supplements.
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