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The interchangeable properties of no less than six of the G --> 6MI point mutants highlight UV1C ' s built - in functional flexibility , which may serve as a starting point for the creation of efficient , visible light - harnessing , photolyase DNAzymes for either the prophylaxis or therapy of UV damage to human skin .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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