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p-蛋白
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  “p-蛋白”译为未确定词的双语例句
     In this thesis a chimeric gene, p1300gdcsP:lys, was constructed by using a vascular specific promoter, gdcsP isolated from C3-C4 intermediate plant Flaveria anomala and T4 lysozyme gene (its product is able to cleave the peptidoglycan of bacterial cell walls and results).
     gdcsP启动子分离于C_3-C_4中间型植物Flaveria anomala中甘氨酸脱羧酶(GDC)P-蛋白亚基的上游调控序列。 研究发现gdcsP启动子具有维管束表达特异性,在水稻中的表达受植物发育阶段的调控,在幼嫩组织中表达较强,随着发育程度的增加,表达活性也随之降低,而在成熟组织中表达较弱。
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     The multidrug resistance of 7721/Adm to multianticarcinogen was detected by MTT assay, and the distribution of its cell cycle, the expressions of P gp, multidrug resistance associated protein (MRP) and GSH/GST were also detected by flow cytometry.
     用 MTT法鉴定该耐药细胞模型对多种抗癌药物的多药耐药性 ; 以流式细胞技术检测该耐药细胞模型细胞周期分布、细胞表面多药耐药基因 (MDR)的表达产物 - P-蛋白 (P- gp)、多药耐药相关蛋白 MRP及谷胱甘肽硫转移系统(GSH/ GST)的表达等 .
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  相似匹配句对
     protein binding;
     蛋白结合;
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     proteinuria(-);
     尿蛋白(-);
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     ALBUMINOUS CELLS
     蛋白细胞
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     WD-repeat Protein
     WD-重复蛋白
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     P53 oncoprotein was localized inthe nuclei.
     P53蛋白
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  p-glycoprotein
Molecular Modeling of P-Glycoprotein and Related Drugs
      
This paper summarizes the results from molecular modeling of various multidrug resistance (MDR) modulators and the MDR protein P-glycoprotein (P-gp).
      
Molecular model and ATPase activity of carboxyl-terminal nucleotide binding domain from human P-glycoprotein
      
ATP binding and hydrolysis are required for P-glycoprotein mediated multidrug resistance.
      
Modeling revealed the human P-glycoprotein ATP-binding site and the possible role of conserved Gln1118 residue.
      
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  p-protein
All Group I species possess a bifunctional protein (P-protein) which catalyzes both chorismate mutase and prephenate dehydratase reactions.
      
Thus, the channeling action of the P-protein whereby chorismate is committed towards L-phenylalanine formation can be negated by selective feedback inhibition exerted by L-phenylalanine upon the prephenate dehydratase component of the P-protein.
      
lwoffii both possess two chorismate mutase isozymes: one a monofunctional isozyme (chorismate mutase-F), and the other (chorismate mutase-P) a component of a bifunctional P-protein (chorismate mutase-prephenate dehydratase).
      
While both P-protein activities were feedback inhibited by l-phenylalanine, the chorismate mutase-P activity was additionally inhibited by prephenate.
      
The fine structure of sieve elements in general resembles that of the sieve elements in angiosperms except that not all the species of palms have P-protein.
      
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A detached garlic scape in long storage will eventually give rise to a whorl of freshy aerial cloves at its apex(Text fig.2).This can only be brought about at the expense of the stalk proper,where withering starts from the lower end and extends gradually up- ward until the whole stalk is completely exhausted.The material transfer involved must be mainly concerned with the redistribution and reultilization of cellular contents from the senescing stalk to the growing cloves.The present systematic investigation...

A detached garlic scape in long storage will eventually give rise to a whorl of freshy aerial cloves at its apex(Text fig.2).This can only be brought about at the expense of the stalk proper,where withering starts from the lower end and extends gradually up- ward until the whole stalk is completely exhausted.The material transfer involved must be mainly concerned with the redistribution and reultilization of cellular contents from the senescing stalk to the growing cloves.The present systematic investigation on the whole process is primarily based upon serial microscopic and electron-microscopic examination on conducting channels and withering parenchyma. Our previous investigations on garlic have shown that the exhaustive withdrawl of cellular contents from the senescing tissue is finally accomlished by intercellular move- ment of the partially disassembled protoplasm itself.The present result are essentially in agreement with such a general scheme.Light-and electron-micrographs that show nuclear material and other macro-molecular substances tranversing through the plasmo- desmata are rather common.The high resolving electron-micrographs have enabled us to detect the finer details in intercellular transport as given below: 1.Filamentous and fluffy material,somewhat similar in structure to P-protein in sieve tube,can be found in abundance in senescing parenchyma cells in which the demar- kations between protoplasmic components gradually become indistinct.The filamentous material is in transit through plasmodesmata between parenehyma cells and also between parenchyma and sieve tube(Plate Ⅱ,16,18). 2.Withdrawl of cellular contents from the deteriorating parenehyma may assume the form of vesicular transport through plasmodesmata(Plate Ⅰ 9,10,11).Some of the vesicles are simply filled with vacuolar sap; some fully packed with prefabricated ma- terial of macro-molecular structure;and some actually loaded with disassembled pro- toplasmic fragments. 3.Fully packed vesicles as well as disassembled protoplasmic components(includ- ing disintegrated nucleus,degenerated mitochondrion,etc.) may extrude into the intercel- lular spaces and may invade the vessel cavity (Plate Ⅱ,12,13,20; Plate Ⅲ,21,22,23, 24).The fine strueture of the moving protoplasm in the vessel is quite distinct from that of the residual deposits which may cause plugging in the same cavity(Plate Ⅲ, 25,26).

以贮存蒜苔为材料,研究了在茎苔衰退与顶端珠蒜成长过程中物质的再分配,及其在显微、亚显微结构上的反映。观察到类 P-蛋白丝状物在衰退细胞中的形成及其经胞间连丝在薄壁细胞间、薄壁细胞与韧皮部之间进行运转的多种迹象,提出了大分子物质以集装囊泡的形式进行运输的新论点。进一步发现大分子物质在质外体(导管与细胞间隙)中存在与迁移状态;初步论证了它们与导管堵塞物在质上的差异;指出在特定生理状态下,质外体提供的“自由空间”作为大分子物质主动迁移途径的可能性。

The minor leaf vein of Populus deltoides Bartr. cv. 'Lux' (ex. I-69/55), and P. ×euramericana (Dode) Guinier cv. 'San Martino' (ex. I-72/58) has no A-type and B-type transfer cells, which exist in the herb dicotyledon. But some structures like compound plasmodesma and paramural body that vary morphologically with the development of the leaf can be produced by the companion cells and the phloem parechyma cells of the minor leaf vein. It's shown that their occurrence has something to do with the frequent local...

The minor leaf vein of Populus deltoides Bartr. cv. 'Lux' (ex. I-69/55), and P. ×euramericana (Dode) Guinier cv. 'San Martino' (ex. I-72/58) has no A-type and B-type transfer cells, which exist in the herb dicotyledon. But some structures like compound plasmodesma and paramural body that vary morphologically with the development of the leaf can be produced by the companion cells and the phloem parechyma cells of the minor leaf vein. It's shown that their occurrence has something to do with the frequent local transport. The sieve tube members in the minor leaf vein are differentiated through the formation of the P-protein body, the function of the lysosome in the vacuome and the secretion of the dictyosome. In the two clones of the Aegeiros poplar, i.e., I-69 and I-72 there exist distinctions. It seems that the distinctions are related to the increment. Therefore, they require further research.

Populus delioides Bartr.ev.‘Lux’(ex.I-69/55),和P. ×euramericana(Dode) Guinier ev.‘San Martino’.(ex.I-72/58)无性系后代实生苗叶小脉不具有草本双子叶植物中的A型和B型传递细胞(transfer cell),但小脉伴胞和韧皮薄壁细胞的某些结构-复合胞间连丝和壁旁体(paramural body)的形态是随叶片发育而变化,表明它们的发生与局部频繁的运输有联系。小脉筛管分子的分化是通过 P-蛋白体(P-protein body)的形成和液泡系的溶酶体作用,并伴之以高尔基体的分泌作用。I-69和I-72无性系后代实生苗叶小脉的超微结构有区别,似与生长量有一定的相关性,值得深入研究。

A comparative study on the ultrastructural localization of ATPase activity in the cells of the fifth internode of different species was carried out with cytochemical technique.In the phloem cells of sugarcane stem,ATPase activity was localized on the plasma membrane of sieve elem- ents and companion cells,the nuclei,vescles,full development vacuole of companion cell and P-protein.The ATPase activity showed obvious diffe- rence in the stem phloem cells of varous species.The ATPase activity in the phloem ceils...

A comparative study on the ultrastructural localization of ATPase activity in the cells of the fifth internode of different species was carried out with cytochemical technique.In the phloem cells of sugarcane stem,ATPase activity was localized on the plasma membrane of sieve elem- ents and companion cells,the nuclei,vescles,full development vacuole of companion cell and P-protein.The ATPase activity showed obvious diffe- rence in the stem phloem cells of varous species.The ATPase activity in the phloem ceils of wild species and original cultigens was higher than that of commercial varietes.The results suggested that the phloem ATPase acti- vity in the sugarcane stem be associaed with the transport and accumulation of sugar and the resistibility,and there be P-protein ATPase taking part in the phloem transport of sugarcane stem.

采用酶细胞化学技术对7个甘蔗种和品种进行研究。甘蔗茎韧皮部细胞 ATP 酶活性定位于筛管、伴胞质膜、伴胞核、小囊泡、充分发育的液泡膜和 P—蛋白上。野生种和栽培种茎韧皮部细胞 ATP 酶活性较高,而生产品种则较低。认为甘蔗茎韧皮部 ATP 酶活性与糖分的运输和抗性等有关。茎韧皮运输中,可能有 P—蛋白和 ATP 酶主动参与。

 
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