肽

To explore the biological function of propeptide, NK, pro, pronattokinase and active site-mutated proNK genes were cloned and overexpressed in E.

为研究pro肽的生物学功能，我们分别在大肠杆菌中表达并纯化了pro肽、proNK、Ser221Ala proNK、NK。

Ten of them were new sequences and the other 7 were duplicated sequences. These sequences represented respectively: depeptide ABC transporter periplasmic dipeptide-binding protein, permease protein, et al. Conclusion, Gene fragments specific to MTZ-resistant H.

对以上17个差异片段进行单向测序，根据最高同源性比对结果，分别代表二肽ABC载体渗透酶、二肽ABC载体结合蛋白等10个基因的同源基因片段在耐药株中存在高拷贝数。

Experiment 1: 54 weaned crossbred (Yorkshire ×Landrace) piglets with 10kg initial body weight were randomly assigned to six groups, with three replicates of 3 piglets per group. All groups were provided with the same basal diets which only differed in nutritional antibiotcs, respectively Nosiheptide of low, middle and high level (5mg/kg,10mg/kg,20mg/kg), Salinomycin group (50mg/kg), compound group with Zinc bacitracin 40mg/kg+CoIistin sulphate 10mg/kg and the Control group.

试验一：选择体重10kg左右、二元杂交断乳仔猪54头，随机分成6组，每组9头，每组3个重复，6组均在相同的基础饲粮中添加不同饲用抗生素，分别是低、中、高剂量那西肽组(5mg／kg、10mg／kg、20mg／kg)、盐霉素组(50mg／kg)、杆菌肽锌(40mg／kg)和硫酸抗敌素(10mg／kg)配伍组及对照组。

The linked -OH and aromatic ring showed synergistic reaction and enhanced their interaction.

磷酰化肽酯及小肽的体积大小、空间位阻对相互作用亦有显著影响。

Aureus growth that are known in the art, typically, yeast extract, glucose and essential salts, and, in the case of the invention, includes vegetarian amino acids and peptides (e.g., soy, pea hydrolyzate or cotton seed hydrolyzate peptide) as a source of amino acids. Vegetarian amino acids or peptides could, for instance, be derived from any non-animal e.g.

培养基可以由本领域中已知的用于以金黄色葡萄球菌生长为条件的培养基成分组成，一般为酵母提取物、葡萄糖和必需的盐，且在本发明的一些情况中包括植物氨基酸和肽(如大豆、豌豆水解产物或棉籽水解肽)作为氨基酸源。

Results As shown in Western blot analysis, the presence of microsomes did not alter the molecular weight of TM-TNF , but it did result in the cleavage of the IL-2 signal peptide from S-TNFm,suggesting that the leader sequence of TNF might differ from the signal peptide of typical secretory protein in that it seemed not to have undergone cleavage during translation in the rough-faced endoplasmic reticulum.

结果 经Western blot 分析结果表明：微粒体的存在并不改变26×103 TM-TNF的分子量，但微粒体的存在能将S-TNFm上的IL-2信号肽切除，证实TNF引导序列与一般分泌性蛋白的&信号肽&不同，在粗面内质网翻译过程中不被切除。

Results As shown in Western blot analysis, the presence of microsomes did not alter the molecular weight of TM-TNF , but it did result in the cleavage of the IL-2 signal peptide from S-TNFm,suggesting that the leader sequence of TNF might differ from the signal peptide of typical secretory protein in that it seemed not to have undergone cleavage during translation in the rough-faced endoplasmic reticulum. Further enzymatic analysis revealed that TM-TNF was converted into S-TNF through the effect of certain metalloproteinase. Conclusions These results suggest that the mechanisms of TNF-α production may be as follows: Activation of TNF-α producing cells by LPS leads to augmented transcription/translation of TNF-α gene, resulting firstly

实验结果提示17×103 S-TNF产生机制可能是：TNF产生细胞经LPS等激活后，导致TNF基因转录翻译增加，首先形成26×103 TNF，并借助其信号肽疏水氨基酸部分将之&锚定&在细胞膜，成为跨膜型TNF，介导细胞与细胞之间的生物学效应；在某些蛋白酶作用下，可将mTNF的&信号肽&切除，产生17×103分泌型TNF，释放至体液中，在局部或全身发挥作用。

If the products the braincells make resemble the hormones but are not identical to them,then thecDNA's should still bind to these mRNA's,but should not bind astightly as they would to mRNA's for the true hormones.

假若细胞所制造的产品类似于肽激素但并非与这些肽激素全然相同，那么，互补 cDNA's 应仍然和这些信使 mDNA's 粘结的程度。

Bacterial enolpyruvyl transferase is one of the key enzymes acting in the initial stage of peptidoglycan synthesis of bacterial cell walls.

肽聚糖是细菌细胞壁的重要成分，烯醇式丙酮酸转移酶是调节肽聚糖合成初始阶段的关键酶。

The results showed that (1) all the arteries tested had tachyphylaxis to peptidergic agonists;(2) the desensitization of the arteries tested to catecholamines was uneasy except BA;(3) the desensitizations to AⅡ, AVP and PE were homologous;(4) the endothelium-EDRF -cGMP pathway had no contribution to the tachyphylaxis of PA to AⅡ and AVP;(5) membrane receptor cycling (internaliation and re-insertion) contributed only in part to homologous desensitization;(6) there was no change in the function of voltage-dependent Ca〓 channel during desensitization to AⅡ and AVP;(7) some changes in G protein occurred during homologous desensitization;(8) the most surprising finding was that the caudal arterial smooth muscle of stroke-prone spontaneously hypertensive rat showed tachyphylaxis to α〓-adrenoceptor agonist PE, while the tachyphylaxis of pulmonary artery of SHR was not changed compared with that of Wistar rat.

脱敏是消除效应的一种有效方式。因此，研究不同血管对不同激动剂脱敏的差异及阐明脱敏的机制，有助于阐明血管活动个性化的机制。研究表明：血管对肽类激动剂的脱敏方式为快速脱敏，而对儿茶酚胺类激动剂不易脱敏；血管对肽类激动剂和儿茶酚胺类激动剂表现为同源脱敏；内皮-NO-cGMP通路不参与肺动脉对AⅡ和AVP的快速脱敏；用PAO抑制膜受体的内在化只能短暂抑制脱敏的发展，提示用膜受体数目的下调说不能完全解释同源脱敏；血管对AⅡ和AVP脱敏后VSMC细胞膜电压依赖性钙通道功能无改变；CA对AVP脱敏后GTPγS的量-效曲线下移，说明有G蛋白的变化，但这种变化并非G蛋白的亲和性改变；SHRsp之CA平滑肌对AⅡ和AVP的快速脱敏并未减弱，但对PE却表现为快速脱敏，这是我们首次发现的一个非常有趣的现象。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷