活性核

By contrast, the activities of SOD from haemocytes were lower in test groups than those in control group (P.05). These results indicated that the immune activities were enhanced by pearl-nucleus-inserting operation in Hyriopsis cumingii.

本研究表明，内脏团插核手术后三角帆蚌机体的免疫防御调节增强，血液中免疫相关基因α2M的表达水平和免疫相关酶ACP和SOD活性均有明显变化。

The stability of catalyst cobalt sulfonated phthalocyanine used in liquified petroleum gas sweetening process was researched by ultraviolet-visible spectrometry method in alkaline solution .

结果表明，由于氧与磺化酞菁钴形成活性很低的双核二氧聚合物，催化剂在碱液中不稳定，尤其在氧存在下易失活。

Objective: To express recombinant human endostatin in yeast and study its mitogenic activity on 3T3 fibroblast cells.

摘 要 目的：利用酵母真核细胞表达系统表达出重组人内皮抑制素，并对其促成纤维细胞有丝分裂活性进行研究。

The parthenogenetic blastocysts and morulas were seeded on MEF feeder respectively to examine the primary ICM appearance and compare the derivation rate, Results: Twelve batches of mouse parthenogenetic embryonic stem cells were established.

结果：共建立了12株小鼠孤雌胚胎干细胞系，这些细胞SSEA-1抗原阳性，SSEA-4，TRA-1-81，TRA-1-60表面抗原阴性，具有AKP活性，保持正常染色体核型，体内外分化分别形成畸胎瘤和拟胚体。

Potato spindle tuber viroid ; hammerhead ribozyme ; cleavage activity in vitro

马铃薯纺锤形块茎类病毒；锤头型核酶；体外切割活性

UCK is able to catalyze phosphorylation of its physiological substrate uridine and cytidine, and it also plays important roles for the phosphorylation of nucleoside analogs that are being investigated for possible use in chemotherapy of cancer, such as 6-azauridine, 5-fluorouridine and so on.

将表达UCK不同丰度的肝癌细胞进行6-氮尿苷的敏感试验显示，6-氮尿苷对UCK表达量较高的HepG2细胞的毒性作用强于对UCK表达量较低的L02细胞，提示UCK有可能成为临床用药的一个参考指标，克隆人类尿苷胞苷激酶对寻找新的嘧啶核苷类似物并研究它们的药理活性有着重要的意义。

A uricase gene was cloned and sequenced from Bacillus subtilis strain CCRC 14199. The cloned uricase gene contained an open reading frame of 1491 nucleotides encoding a protein of about 55 kDa. A uricase-MBP fusion protein of about 98 kDa was expressed and purified.

尿酸氧化酵素基因是来自枯草杆菌CCRC14199的重组DNA，其基因序列包含1491 核甘酸约55 kDa蛋白质，及表现在麦芽糖结合蛋白大约98 kDa之融合蛋白质，并呈现高尿酸氧化酵素的活性(9.1 U/mg)。

AIM To construct the expression vector of endo-statin gene and transfect it into C6cell,and to discuss its an-tiangiogenesis activity.

目的 构建endostatin基因的真核表达载体，并将其转染C6脑胶质瘤细胞，探讨其体外抑制血管内皮细胞生长的活性。

AIM: To determine the cleavage activity of anti-transforming growth factor β1 hammerhead ribozymes which was inserted into U1 small nuclear RNA in cell-free system.

目的：研究抗转化生长因子β1 U1snRNA嵌合型锤头状核酶的细胞外切割活性。

Objective:To study the effect of ribozyme mediated inhibition on telomerase activity and cell proliferation of GBC-SD cells.

目的： 探讨锤头状核酶切割技术对胆囊癌细胞端粒酶活性的影响及对胆囊癌细胞生长增殖的作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。