胞内酶

Cathepsin D and β-tubulin marked with fluorescence were followed in distribution observed by laser scaning microscope, the distribution was from nucleus nearby to cytoplasm and apophysis, which suggested that they took part in traffic in cells.

荧光双标组织蛋白酶D及β-tubulin，共焦激光扫描显微镜下观察，可见二者伴随分布，均由开始的核周分布明显到散在分布于胞质及突起中，说明溶酶体与骨架蛋白密切相关，提示共同参与细胞内的运输。

PSE7 and SOJB had the similar binding proteins in tobacco, suggesting that they may share some similar biological functions. The ubiquitin-conjugating protein and peptidase involved in protein degradation were found binding with SOJB but not PSE7. Both SOJB and PSE7 could bind with transmembrane transport protein, SOJB bound with copper transporter protein, and PSE7 bound with water channel protein. The results suggested that the target of SOJB and PSE7 may be located in cytoplast.

PSE7和SOJB在烟草中存在几个相似的结合蛋白，表明二者具有共享的生物学功能；SOJB能与肽酶和泛素结合蛋白（与蛋白质降解有密切关系）互作，而PSE7没有筛选到类似蛋白；SOJB和PSE7均能与跨膜运输蛋白结合，PSE7与水通道蛋白结合，SOJB与铜离子转运蛋白结合，表明二者在胞质内均存在作用靶标。

The peak of expression of the transferred cytosine deaminase gene occurred in cells at different time, but persisted beyond 11 days.

转染的胞嘧啶脱氨酶基因在细胞内的表达高峰出现在不同的时间，但一直持续到11天以后。

Methods Eukaryotic expression plasmid pCMVCD was constructed , and identified by re2 striction endoenzyme digestion. CD gene was transfected into NSCs from new2born Wistar rats using Lipofec2tamine2000. Positive clones (named NSCs/ CD cells) were screened by G418 presence. 52Fluorocytosine (52FC) ad2ministration of different concentrations were incubated with NSCs/ CD cells. NSCs/ CD cells viability ratios were mea2 sured by MTT assay.

通过构建真核表达质粒pCMVCD ，限制性内切酶消化鉴定后，采用Lipofectamine 2000 脂质体介导法转染新生大鼠室管膜下区神经干细胞(Neural stemcells ， NSCs)，G418 筛选阳性克隆，加入不同浓度的52氟胞嘧啶(52Flourocytosine ， 52FC)，MTT比色法测定NSCs的生存率。

Methods:Via a cannula iserted into adominal aorta, Gey's balanced salt solution containing 0.025% collagenase P was perfused into rat normal pancreas. After digestion with collagenase P and protease, Nycodenz density gradient centrifugation was performed to isolate PSC. PSC was identified by its morphology, cytoplasmic lipid droplets and immunocytochemical staining for desmin, GFAP and α-SMA. Results:The production,viability and purity of isolated PSC were（15.3 ± 4.6）× 103／g body weight,（95.0 ± 3.5）%, and ﹥80％ respectively.

大鼠腹主动脉插管灌注后，经胶原酶消化、Nycodenz密度梯度离心，分离得到PSC；通过观察细胞形态、胞质内脂滴和免疫细胞化学方法检测结蛋白、神经胶质酸纤维蛋白（glial fibrillary acidic protein，GFAP）、α平滑肌肌动素（α-smooth muscle actin，α-SMA）的表达来鉴定PSC。

The clathrin triskelions assenble into a basket-like convex framework that causes the membrane to invaginate clathrin-coated vesicles migrate into the cell where the clathrin coats are lost before delivering their contents to the lysosomes.

网格蛋白三脚复合体装配成篮状凸起懂得框架，使得膜在该处内陷，最终出芽而形成小泡。而在胞吞作用中，这些网格蛋白包被的小泡转移到细胞中，此处网格蛋白外被在小泡的内含物转移到溶酶体之前即行消失。

Here is the summary of currently research of metallo-β-lactamase genes,carried by integron in Pseudomonas aeruginosaincluding IMP,VIM,SPM,and GIM.

本文就铜绿假单胞菌中整合子携带的金属β-内酰胺酶基因IMP、VIM、SPM和GIM的研究进展作一综述。

Results Microscopically, different degrees of hepatocytic degenerative changes and hyperplasic fibrous tissue and typical false lobule formation could be seen. Timm's staining result showed uneven distributed black granular deposits in the hepatocytes. No specific PAS staining was observed. Utrastructurally, the mitochondria were increased in volume and dramatically different in shape. The number of lysomes were increased.

结果 光镜下肝细胞表现为不同程度的退行性变，胶原纤维增生以及典型假小叶形成；Timm's染色阳性，发现不均匀分布黑色颗粒或团块样物质沉积；PAS染色则普遍缺乏特异性染色；超微结构显示线粒体形态多样，体积增大，溶酶体增多，粗面内质网管腔扩张，附着核糖体的脱颗粒，以及胞质水肿，质膜溶解。

The main target of PDT-CPD4 was probably membrance organelles, such as cytomembrance、lysosome、microsome. It made lipide and protein of these membrance dissociate and degenerate, membrance penetration increased. Typical biochemical changes appeared, 180bp bases DNA fragmentation ladder pattern was observed in agar electrophoresis.

但PDT作用后出现线粒体肿胀，可能是因为PDT的主要靶部位是膜性细胞器如线粒体、胞质膜、内质网和溶酶体等，光化学反应产物使这些膜的脂类和蛋白质发生分解变性，膜通透性增高所致。

Transport signal in a soluble cargo protein (for example, a secreted protein that passes through the lumen) is a region that binds to the lumenal domain of a transmembrane cargo receptor, which in turn has an cytoplasmic domain that binds an adaptor protein. Interaction between the cargo and the coat

我们已经有了几种类型的信号的细节：要求一种构像用于蛋白质通过胞吞作用成为细胞内的一部分；一种氨基酸序列使得蛋白质到达内质网；和一种修饰使得蛋白质到达溶酶体（小的膜体，在那里蛋白质降解，见后面）。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。