限速酶

COX-2是合成前列腺素的限速酶。

COX-2 is a rate-limiting enzyme of prostaglandin synthesis .

酪氨酸羟化酶（TH）是多巴胺合成的限速酶，作为多巴胺的标记。

Tyrosine hydroxylase ( TH ) is the rate-limiting enzyme in the synthesis of dopamine , as a marker of dopamine .

RT-PCR扩增检测肺组织中PC合成限速酶磷酸胆碱二胞苷酰基转移酶（CCTα）mRNA含量；

MRNA content of phosphocholine cytidylyltransferase ( CCT ) in lung explants was investigated in RT-PCR ;

一氧化氮合酶（NOS）为产生NO的限速酶，与NO的各种生理功能密切相关。

The key enzyme which produces NO , is also associated with the physiological functions of NO.

血红素加氧酶（HO）在动物体内是血红素分解代谢过程中的限速酶。

Heme oxygenase ( HO ) has been regarded as a rate-limiting enzyme in heme degradation .

4.Asp对COX表达的影响：COX是前列腺素合成的限速酶。

Effect of aspirin on COX expression : The COX is a rate-limiting enzyme synthesizing prostaglandin .

COX是一种膜结合蛋白，是前列腺素生物合成的限速酶。

COX is a membrane conjugated protein and is the rate-limiting enzyme in the synthesis of prostaglandins .

血红素氧合酶（HO）是体内产生CO的限速酶。

Heme oxygenase ( HO ) is the rate-limiting enzyme of the CO production , and HO-1 is the induced form of HO .

血红素加氧酶（HemeOxygenase，HO）是血红素代谢的限速酶。

Heme oxygenase ( HO ) catalyzes the rate-limiting step in the degradation of heme .

背景与目的：环氧化酶（cyclooxygenase，COX）是人体内合成前列腺素的限速酶。

Background & Objectives : Cyclooxygenase ( COX ) is a rate limiting enzyme in prostaglandin synthesis .

在体内，NO不易测定，因一氧化氮合酶（Nitricoxidesynthase，NOS）是NO合成的主要限速酶，故常以NOS的活性来间接反映NO的水平高低。

In body , nitric oxide synthase ( NOS ) can reflect the level of NO , which is the restriction enzyme of NO synthesise .

血红素氧化酶&1（HemeOxygenase-1，HO-1）是一应激蛋白，是血红素降解的限速酶。

Heme oxygenase-1 ( HO-1 ) is a stress protein and the rate-limiting enzyme in heme degradation .

目的：通过制备豚鼠变应性鼻炎动物模型，观察并分析内源性一氧化碳（CO）的限速酶血红素氧合酶1（HO1）在豚鼠鼻黏膜组织中的表达。

Objective : To study the expression of a specific inhibitor of endogenous carbon monoxide ( CO ) generating enzyme Heme oxygenase - 1 ( HO-1 ) in allergic rhinitis guinea pigs .

硝酸还原酶（NR）是植物体内硝酸盐代谢过程中的第一个关键酶，也是限速酶，NR又是一种诱导酶。

Nitrate reductase ( NR ) is a crucial enzyme in the process of nitrate metabolizing and can be induced by nitrate .

环氧合酶（cyclooxyengase，COX）是花生四烯酸转化为前列腺素的限速酶，有二种同功酶，即环氧合酶1（COX-1）和环氧合酶2（COX-2）。

Cyclooxygenase-1 and - 2 ( COX-1 and COX-2 ) are the rate-limiting enzymes that convert arachidonic acid to prostaglandins .

目的：COX（环氧化酶）是花生四烯酸合成前列腺素类的关键限速酶，在炎症反应中起重要作用。

Objective : Cycloxygenase is the key enzyme of prostaglandin synthesis from arachidonic acid , taking great part in the progress of Inflammation .

ACC（1-aminocyclopropane-1-carboxylicAcid）合成酶是高等植物乙烯生物合成途径中的限速酶。

ACC ( 1-aminocyclopropane-1-carboxylic acid ) synthase ( ACS ) is one of the key rate-limiting enzymes for ethylene biosynthesis in higher plants .

有报道表明TDC酶是长春花生物碱代谢途径的一个限速酶；

It has been reported that TDC is the key enzyme in biosynthesis of alkaloid from Catharanthus Roseus ;

血红素加氧酶（HemeOxygenase，HO）是血红素分解代谢过程中的限速酶，它能使细胞内的血红素降解成胆绿素和一氧化碳（CarbonMonoxide，CO）。

Heme oxygenase ( HO ) is a rate limiting enzyme of heme degradation , which converts the cellular heme to bilirubin and carbon monoxide ( CO ) .

胆碱乙酰转移酶（cholineacetyltransferase，CHAT）是合成ACh过程中的限速酶。

Cholineacetyltransferase ( CHAT ) is the rate-limiting enzyme in the process of the synthesized acetylcholine .

血红素氧化酶（HO）降解血红素生成胆绿素、一氧化碳和游离铁，是血红素代谢反应过程中的限速酶。

Heme oxygenase ( HO ) is an enzyme that catalyzes the rate-limiting step in the degradation of heme to biliverdin , carbon monoxide and iron .

研究的背景与目的：血红素氧合酶（HemeoxygenaseHO）是催化血红素降解的起始酶和限速酶。

Background and objective : Heme oxygenase ( HO ) catalyzes the oxidation of heme to carbon monoxide , biliverdin , and iron .

G6PD是磷酸戊糖旁路代谢的限速酶，也是重要的看家酶.G6PD缺乏症是人类常见的遗传性疾病。

Glucose-6-phosphate dehydrogenase ( G6PD ) is the key enzyme of Pentose Phosphate Pathway , G6PD deficiency is common hereditary disease .

血红素氧化酶是血红素降解过程中的一种限速酶，有3种亚型：HO-1、HO-2和HO-3，其中HO-1的研究较多。

Heme oxygenase ( HO ) is the rate-limiting enzyme in the degradation of heme .

而查尔酮合酶（ChalconeSynthase）是黄酮类化合物合成途径中第一个关键的限速酶，对黄酮含量的高低有着很大的影响。

Chalcone synthase is a key rate-limiting enzyme in the biosynthesis of flavonoids , having a great impact on the level of flavonoid content .

MPA的主要作用机理是抑制次黄嘌呤单核苷酸脱氢酶（IMPDH），该酶是鸟嘌呤核苷酸从头合成途径的限速酶。IMPDH受抑导致鸟嘌呤核苷酸生成减少，进而DNA、RNA合成受阻。

The main mechanism of MPA is that it inhibits IMPDH which is the rate-limiting enzyme in de novo synthesis of guanosine nucleotides .

酰基辅酶A氧化酶（ACO）是热带假丝酵母内二元酸β氧化的限速酶。

Acyl Coenzyme A Oxidase ( ACO ) is the rate-limiting enzyme of the β - oxidation of dicarboxylic acid in Candida tropicalis .

DPD是尿嘧啶和胸腺嘧啶分解过程中的第一限速酶，可降低用于DNA合成的尿嘧啶和胸腺嘧啶的水平而影响DNA的合成。

DPD is the first rate-limiting enzyme in the catabolism of uracil and thymine , and affects DNA synthesis by decreasing the level of uracil and thymine , the necessary material for DNA synthesis .

血红素氧合酶（HemeOxygenase，HO）是血红素降解的起始酶和限速酶，在体内分解血红素生成一氧化碳（CarbonMonoxide，CO）、胆绿素和自由铁。

Heme oxygenase ( HO ) is an initial and limiting enzyme of heme oxidization , which can catalyze the heme into carbon monoxide ( CO ), biliverdin and free iron .

随着1979年乙烯合成途径的证实，使人们认识到ACC合成酶是乙烯合成的限速酶。

In 1979 , the confirmed of ethylene biosynthetic pathway make people recognizing that the ACC sythase is the rate-limiting enzyme of the ethylene biosynthetic pathway .