It is intended to contribute to the solution of environmental problems caused by destroying the ozone layer and serious problems concerning the food resources in the 21 st century by isolating a photoreactivating enzyme from an ultraviolet light-tolerant rice plant, thus acquiring information on the photoreactivation mechanism of the plant which still remains unknown mostly, and constructing an ultraviolet light-tolerant plant with the use of a cloned gene. Genes encoding a photoreactivating enzyme originating in rice plant, in particular, a gene encoding a protein as specified in the following (a) or (b): (a) a protein comprising the amino acid sequence represented by SEQ ID NO:1; and (b) a protein comprising an amino acid sequence derived from the amino acid sequence (a) by deletion, substitution or addition of one to several amino acids and having a photoreactivating enzyme activity.
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机译：它旨在通过从耐紫外线的水稻植物中分离光活化酶来解决21世纪破坏臭氧层所引起的环境问题和与粮食资源有关的严重问题，从而获得有关光活化机理的信息仍然大部分未知的植物的一部分，并利用克隆的基因构建耐紫外线的植物。编码起源于水稻的光活化酶的基因，特别是编码下述（a）或（b）中指定的蛋白质的基因：（a）包含由SEQ ID NO：1表示的氨基酸序列的蛋白质; （b）蛋白质，该蛋白质包含通过缺失，取代或添加一个至几个氨基酸而衍生自氨基酸序列（a）的氨基酸序列，并且具有光活化酶活性。
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