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一般說明
亚基分子量:约 90,770
由六个亚基组成,总分子量:约 544620
由六个亚基组成,总分子量:约 544620
尿素酶是一种依赖镍的金属酶,存在于各种植物、细菌、真菌和藻类中。它含有两个不同的亚基——UreA(26.5 kDa)和UreB(60.3–61.6 kDa)。
生化/生理作用
在 Hela 细胞中,脲酶可诱导空泡化,这种作用取决于脲酶将尿素转化为氨的能力。
尿素酶有助于植物中氮的生物利用。它与防御机制有关,具有杀虫活性。此外,尿素酶可通过抑制丝状真菌和酵母的生长和影响细胞膜完整性表现出抗真菌活性。
單位定義
一微摩尔单位,在 pH7.0,25℃ 下,每分钟从尿素中释放出 1.0 μmole 的 NH3。它相当于1.0 I.U. 或 0.054 Sumner 单位(在 pH 7.0,20°C,5 分钟内 1.0 mg 氨氮)
訊號詞
Danger
危險分類
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
標靶器官
Respiratory system
儲存類別代碼
11 - Combustible Solids
水污染物質分類(WGK)
WGK 1
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probiotics-and-human
Today, diverse studies report the benefits of probiotics, such as inhibitory effects on pathogens, aid in the management or prevention of chronic intestinal inflammatory diseases or atopic syndromes, and support to the immune system. Potential beneficial applications abound, researchers continue to evaluate the effictiveness and clarify the mechanisms of action of probiotics.
我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.
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