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吲哚胺2,3双加氧酶对免疫的调节作用

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摘要 1 IDO的生物学特性1963年,Shimizu等分离出IDO,发现其在哺乳动物体内分布广泛,在各种肝外组织中都有IDO的存在,尤以胎盘和肺中表达最多。IDO与肝内的L-色氨酸2,3-双加氧酶(TDO)催化的反应相同。IDO以超氧阴离子(02-)作为辅助因子,酶解吡咯环,生成N-甲酰犬尿氨酸和犬尿氨酸。其底物主要包括D-色氨酸、5-羟色氨、5-羟-L-色氨酸和L-色氨酸,动力学研究表明其最适底物是L-色氨酸。
作者 赵智成
出处 《医疗装备》 2015年第18期39-39,共1页 Medical Equipment
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