成酶的

It includes determination of properties of the acid protease and lipase, application of acid enzymes to processes of bating pickling pelt and wet blue of sheepskins, analysis of activities of collagenase in acid protease and trypsin. Comparison was conducted to acid bating and common bating. Orthogonal experiments were used to determine influence of some factors in acid bating on qualities of leather. Scanning electronic microscope was used to observe separating of collage fibers.

对酸性蛋白酶、酸性脂肪酶的性能进行了测定；将其用于绵羊服装革生产的酸性软化及蓝湿皮软化中，利用正交试验法研究了酸性酶软化各因素对成革质量的影响，并与常规酶软化进行了对比；用扫描电镜观察了酸性酶软化后胶原纤维的分散情况；对酸性蛋白酶的分子量进行了测定，对比了酸性蛋白酶与胰酶中的胶原酶活力，以说明酸性酶软化与胰酶软化对胶原性质的影响。

Phytase was a kind of enzyme for hydrolyzing phytate to release myoinositol and inorganic phosphate, which would promote the utilization of phosphate, reduce the drainage of phosphate in the dejecta and reduce the environmental pollution.

植酸酶是催化植酸及植酸盐水解成肌醇与磷酸的一类酶的总称。植酸酶添加在饲料中，会将其中的植酸水解成肌醇和磷酸，从而提高了磷的利用率，降低了粪便中磷的排放量，减少了植酸磷对环境的污染。

Myoblast fusion would required calpain activation while its fusibility would depend on the ratio of cell calpain to calpastatin.

成肌细胞融合需要钙激活酶的活性，融合率取决于细胞中钙激活酶与钙激活酶抑制蛋白的比例。

Conjugated enzyme :An enzyme that contains nonprotein component in addition to the amino acids.

酶的活性中心：酶分子中直接与底物结合，并催化其转变成产物的特定空间区域，是酶发挥催化作用的关键部位。

Lipase mediates esterification between caproic acid (0.6mol/L) and ethanol (0.6mol/L) in n-heptane at 40℃. The decrease in caproic acid is measured by titration and 1 unit of lipase synthetic activity is defined as 1 μmol caproic acid consumed per min.

在40℃下，脂肪酶催化己酸(0.6mol/L)与乙醇(0.6mol/L)在正庚烷中进行酯合成反应，通过滴定法测定剩余的己酸，1个脂肪酶有机相合成酶活单位定义为：在测定条件下每分钟消耗1μmol己酸的酶量。

Signal peptide sequence was removed lest it couldnt be recognized by Bacillus subtilis, gene coding for mature peptide was ligated to downstream of sacB signal peptide sequence of pWB980 to form a new ORF and generate pWB980-LipA, gene coding for its chaperone was also amplified and ligated to the downstream of LipA to generate a secretion/expression vector pWB980-LipAB.thechaperone gene was sequenced and analyzed by multiple alignments, resulted showed that there were mutations of nucleotides(1～7) and amino acids (1～2) with the other reported genes.

为了防止枯草芽孢杆菌信号肽酶不能识别脂肪酶的信号肽，切除掉脂肪酶的信号肽编码序列，与枯草芽孢杆菌分泌表达质粒pWB980连接并与质粒上的SacB信号肽构成一个完整的开放式阅读框，获得重组质粒pWB980-LipA，因为该脂肪酶的活性表达需要一个特异性分子伴侣帮助折叠成有活性的构象，将脂肪酶分子伴侣基因串连到脂肪酶基因的下游，获得重组分泌表达载体pWB980-LipAB并且测序分析分子伴侣的基因序列和氨基酸序列并与其它报导的序列进行了比对，发现有1到7个碱基的差异和1到2个氨基酸残基的突变。

Itamin D from the skin and diet is metabolized in the lier to 25-hydroxyitamin D (Figure 1), which is used to determine a patient's itamin D status1,2,3,4; 25-hydroxyitamin D is metabolized in the kidneys by the enzyme 25-hydroxyitamin D-1-hydroxylase (CYP27B1) to its actie form, 1,25-dihydroxyitamin D.1,2,3,4 The renal production of 1,25-dihydroxyitamin D is tightly regulated by plasma parathyroid hormone leels and serum calcium and phosphorus leels.1,2,3,4 Fibroblast growth factor 23, secreted from the bone, causes the sodium–phosphate cotransporter to be internalized by the cells of the kidney and small intestine and also suppresses 1,25-dihydroxyitamin D synthesis.5 The efficiency of the absorption of renal calcium and of intestinal calcium and phosphorus is increased in the presence of 1,25-dihydroxyitamin D (Figure 1).2,3,6 It also induces the expression of the enzyme 25-hydroxyitamin D-24-hydroxylase (CYP24), which catabolizes both 25-hydroxyitamin D and 1,25-dihydroxyitamin D into biologically inactie, water-soluble calcitroic acid.2,3,4

从皮肤和食物来的维生素D在肝中代谢为25-羟基维生素D（图1），被用来决定病人体内维生素D情况的1，2，3，4；25-羟基维生素D在肾中被25-羟基维生素D1羟化酶（CYP27B1）转变为有活性的1，25-二羟基维生素D 。1，2，3，4由肾产生1，25-二羟基维生素D是被血浆甲状旁腺激素和血清钙，磷水平紧密调节。1，2，3，4由骨分泌的成纤维细胞生长因子23使钠磷协同转运蛋白被肾和小肠细胞内化及抑制1，25-二羟维生素D合成。5 在1，25-二羟基维生素D作用下肾和小肠吸收钙及磷的效率增高(图1)。2，3，6 它也包括25-羟四- 24 -羟化酶的表达(CYP24)，且将1，25二羟基维生素D和25羟基维生素D异化成无生物活性，水溶性的维生素D3-23羧酸。2，3，4

An enzyme in human urine that catalyzes the conversion of plasminogen to plasmin and is used in medicine to dissolve blood clot s.

尿激酶人体尿液中的可促使血将酶原转代成血浆酶的酶，用于溶解血凝块的药物中

An enzyme in human urine that catalyzes the conversion of plasminogen to plasmin and is used in medicine to dissolve blood clots.

尿激酶人体尿液中的可促使血将酶原转代成血浆酶的酶，用于溶解血凝块的药物中

This experiment was made to investigate the changes of lipopro tein li pase and hepatic lipase activity and their effects on gallstone formati on in rabbit model in which the stones were induced by high cholesterol diet.Act ivities of plasma LPL and HL were determined; other data including concentratio n of plasma lipoprotein cholesterol, concentration of bile cholesterol and bile acids were also obtained.

为研究肝脂酶及脂蛋白脂酶在胆固醇结石成石过程中的变化及其对成石的影响，采用高胆固醇膳食诱发兔胆囊胆固醇结石模型，观测对照组及高胆固醇膳食1、2 、3、4周组动物血浆脂蛋白脂酶、肝脂酶活性、血浆脂蛋白胆固醇及胆汁中甘氨胆酸、甘氨脱氧胆酸、胆固醇的变化。

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。