天净沙咪唑甘油磷酸合酶活性测定试剂盒产品图片
天净沙咪唑甘油磷酸合酶活性测定试剂盒产品图片

天净沙咪唑甘油磷酸合酶活性测定试剂盒

英文名:Skygen Imidazole Glycerol-Phosphate Synthase Assay Kit
别名:IGP Synthase; HisFH (Gene Names); HIS7 (Gene Name)
产品编号:7-EC4.3.2.10
保存温度:-20℃
运输温度:Cold
货号 规格 货期 目录价
7-EC4.3.2.10 100 T 3-4 Weeks

产品内容

本酶催化的反应为5-[(5-Phospho-1-Deoxy-D-Ribulos-1-Ylamino)methylideneamino]-1-(5-Phospho-beta-D-Ribosyl)imidazole-4-Carboxamide + L-Glutamine = 5-Amino-1-(5-Phospho-beta-D-Ribosyl)imidazole-4-Carboxamide + D-Erythro-1-(Imidazol-4-Yl)glycerol 3-Phosphate + L-Glutamate (Overall Reaction);;(1a) L-Glutamine + H2O = L-Glutamate + NH3;;(1b) 5-[(5-Phospho-1-Deoxy-D-Ribulos-1-Ylamino)methylideneamino]-1-(5-Phospho-beta-D-Ribosyl)imidazole-4-Carboxamide + NH3 = 5-Amino-1-(5-Phospho-beta-D-Ribosyl)imidazole-4-Carboxamide + D-Erythro-1-(Imidazol-4-Yl)glycerol 3-Phosphate + H2O,系统名称为5-[(5-Phospho-1-Deoxy-D-Ribulos-1-Ylamino)methylideneamino]-1-(5-Phospho-beta-D-Ribosyl)imidazole-4-Carboxamide D-Erythro-1-(Imidazol-4-Yl)glycerol 3-Phosphate-Lyase (L-Glutamine-Hydrolysing; 5-Amino-1-(5-Phospho-beta-D-Ribosyl)imidazole-4-Carboxamide-Forming),该酶参与组氨酸生物合成以及嘌呤核苷酸生物合成。来自古菌和细菌的该酶是异二聚体。谷氨酰胺酶组分(参见 EC 3.5.1.2,谷氨酰胺酶)产生一个氨分子,后者经一条 25 埃的隧道转移到环化酶组分,环化酶将其加到咪唑环上,导致分子裂解和一个产物的环化。谷氨酰胺酶亚基只在二聚复合物内才有活性。在真菌和植物中,两个亚基合并为单条多肽。
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