查询词典 enzymes

Many enzymes are composed of several subunits, and some have binding and catalytic functions encoded by different domains.

许多酶是由几个基组成，有些具有不同区域形成的结合和催化功能。

But the enzymes that govern biochemistry are such precise tools that, often, only one-handedness is acceptable.

可是，在生物化学界占支配地位的酶，恰恰是这样一种往往只能接受某一手性的精密工具。

Myonecrosis after revascularization procedures［J］. J Am Coll Cardiol,1998,31:241251.［3］Tardiff BE, Califf RM, Tcheng JE, et al. Clinical outcomes after detection of elevated cardiac enzymes in patients undergoing percutaneous intervention［J］. J Am Coll Cardiol,1999,33:8896.［4］Simoons ML, Van den Brand M, Lincoff M, et al. Minimal myocardial damage during coronary intervention is associated with impaired outcome［J］.

研究显示，PCI术后往往伴随一定的心肌损伤，发生率约为5%～40%，临床表现为心肌损伤标记物水平的升高［17］；这种心肌损伤在大部分患者并不产生明显的临床症状和心电图变化，对其心脏功能也无明显影响，但是对患者的预后却有不良影响，使死亡率及不良事件发生率升高［38］。

The biomass production of grafted seedlings, activities of antioxidant enzymes and contents of proline and soluble protein in leaves of grafted seedlings were significantly higher than those of own-root seedlings, while O2(superscript -) production rate, contents of H2O2 and MDA in leaves of grafted seedlings were significantly lower than those of own-root seedlings under Ca(NO3)2 stress.

结果表明，Ca(NO3)2胁迫明显抑制植株生长，显著提高植株抗氧化酶活性，显著增加植株O2生成速率以及H2O2、MDA、脯氨酸和可溶性蛋白含量，但胁迫后嫁接苗的生物量显著高于自根苗，抗氧化酶活性、脯氨酸和可溶性蛋白含量均显著高于自根苗，而O2生成速率、H2O2和MDA含量则显著低于自根苗。

Compared with the ck, the sugar accumulation increased extremely significant by grafting with the wild watermelon 2, but that of the other treatments all decreased and the sugar accumulation of loofah/Zaojia was the lowest. The sucrose invertase activity decreased; the activitives of sucrose phosphate synthase and net for sucrose-metabolism enzymes all increased during the development of own-rooted and grafted watermelons.

与对照相比，野生西瓜2号／早佳组合的果实糖积累极显著增高，而其他嫁接组合的糖积累均降低，丝瓜／早佳组合的果实糖含量最低；自根和嫁接西瓜果实发育过程中蔗糖转化酶活性降低，蔗糖磷酸合酶活性升高，蔗糖合酶在西瓜果实发育后期主要起合成作用，促进果实蔗糖积累，蔗糖代谢相关酶净活性值增大。

Unilever and others have produced lipase to process palm oil to produce cocoa butter- like fat, and enzymes have also been used in the production of semi-synthetic penicillin.

Unilever公司已经生产出脂肪酶，用来把棕榈油加工成可可奶油脂肪。酶还用在生产半合成的青霉素上。

Natural enzymes penetrate and break up the paraffin, asphaltenes, scale, resin and minerals that typically deposit on the walls of oil well tubing over time, restricting valuable oil and gas production.

这种生物酶能够渗入并解除蜡，沥青质，水垢，酸液，矿物等在油井套管上沉积的物质，这些沉积物的附着妨碍了油气的生产。

Often spoilage microorganisms have specialized enzymes that help them weaken and penetrate protective peels and rinds, especially after the fruits and vegetables have been bruised.

腐败微生物经常有专用的酶，它可以帮助它们减弱并穿透保护性的果皮和外壳，特别是在水果和蔬菜被损伤口。

We named these RNA enzymes "ribozymes".

我们称这种 RNA 为核酶。

The activities are high in the topsoil and low in the subsoil, decrease from rhizoplane soil to root-free soil for all three enzymes.

从表层土向下，由根表土向外，碳矿化速率及其相关的各种酶活性均呈下降趋势。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。