rate-limiting enzyme 中文意思是什麼

rate-limiting enzyme 解釋
退速酶
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  • limiting : adj. 限制（性）的，有限制力的，起限定作用的〈不涉及性質的各種定語如： several, four 等〉。
  • enzyme : n. 【化學】酶。 digestive enzyme 消化酶。 induced enzyme 誘導酶。
  1. Quinic acid, used shikimate pathway in e. coli, it is necessary to extend metabolic pathway by introduction of a heterogenous gene qutb into the host cell. double specific enzyme genes arog, qutb or three ones arog, qutb, arob were co - expressed in a single plasmid pbv220 to improve the enzymes " rate - limiting reactions. modifications of e. coli chromosome by both disruption of the arod gene and directed - site insertion of the arob gene resulted in the change of carbon flow redirected into the quinic acid biosynthesis branch

    利用大腸桿菌莽草酸途徑合成新的代謝物奎尼酸，須在宿主細胞引入異源酶基因擴展代謝途徑；串聯表達酶基因，同時適量增加不同種屬的多個關鍵酶酶量，改善限速反應；利用同源重組進行基因整合和基因破壞，改造染色體結構定向改變微生物代謝途徑；目的是將碳代謝流最大程度的引向奎尼酸生成的方向。
  2. Chorismate acid is branch point in aromatic amino acids biosynthesis, related to phenylalanine, bifunctional enzymes chorismate mutase / prephenate dehydratase ( encoded by phea ) is rate - limiting enzyme

    分支酸是芳香族氨基酸合成途徑的分支點，與苯丙氨酸合成有關，雙功能酶分支酸變位酶-預苯酸脫水酶（ phea基因編碼）是關鍵酶。
  3. Acc synthase is the rate - limiting enzyme of ethylene biosynthesis, and the rate of ethylene biosynthesis is tightly controlled by the activeness of acc synthase in plants

    Acc合酶（ acs ）是高等植物乙烯生物合成途徑中的限速酶，它在植物組織內的活性大小往往決定著乙烯產生的速率。
  4. The l - n - carbamoylase of arthrobacter bt801, coded by the hyuc gene, is the rate - limiting and the only stereoselective enzyme. hydantoin hydrolase gene ( hyuh ) and n - carbamoylase gene ( hyu c ) were amplified from the plasmid of puc18 - 169 by pcr and, at the same time, activity expression was obtained in e. coli and pichia pastor is gs115 respectively

    節桿菌bt801的乙內酰脲水解酶催化乙內酰脲類化合物水解開環， n -氨甲酰基氨基酸水解酶是該菌乙內酰脲酶系中惟一具有立體選擇性的酶，也是整個反應體系的限速酶。
  5. Prostaglandin e synthase ( pges ) is the terminal rate - limiting enzyme for pge2 synthesis, which catalyzes the conversion of pgh2 into pge2. there are two isoforms of pges, microsomal pges ( mpges ) and cytosolic pges ( cpges )

    前列腺素e合成酶（ pges ）是pge _ 2生物合成過程中的終端限速酶，催化環氧合酶的產物pgh _ 2轉化為pge _ 2 。
  6. Prostaglandin e synthase ( pges ) is the terminal rate - limiting enzyme for pge2 synthesis, which catalyzes the conversion of pgh2 into pge2

    前列腺素e合成酶（ prostaglandinesynthase ， pges ）是pge2生物合成過程的末端限速酶，催化環氧合酶的產物pgh2轉化成pge2 。
  7. 1. overexpression of the rate - limiting enzyme genes of e. coli strain e. coli w3110 chromosome dna and plasmid pg908 dna were separately used as template to amplfy genes arob and arog by pcr, the dna sequencing showed that the cloned genes were in agreement with the reported sequences

    大腸桿菌arog 、 arob基因的克隆與表達分別以大腸桿菌（ e . coli ） w3110染色體dna和質粒pg908dna為模板，用pcr方法擴增得到了arob基因和抗反饋抑制的arog基因，序列測定與文獻報道一致。
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