transcriptional level 中文意思是什麼
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In plants, the expression of many genes is regulated at transcriptional level, and mostly by cis - and trans - acting elements
許多植物基因表達的調控發生在轉錄水平上，主要受順式元件和反式因子的調控。 -
This expression vector plbcas - hsa - lgl has the following advantages : i ) the 1. 7kb promoter is able to drive cell - specific and hormone - dependent expression ; ii ) the inclusion of intron - 1 can increase expression level of fusion genes ; iii ) the 5 ' utr of bovine p - casein mrna may have a positive role in both transcriptional and post - transcriptional regulation ; iv ) the gfp gene make the selection of positive clone among embryos possible ; v ) the gfp gene can be easily excised via cre - mediated recombination between the two loxp sites after the expression vector has been integrated into chromosome ; vi ) the two incompatible lox sites, loxp and lox2272, would facilitate cre - recombinase mediated cassette exchange ( rmce ), which in theory will leading to develop a technology of site - specific gene expression in animal mammary glands
該載體的特點是：具有可以調控外源基因在乳腺中特異表達的牛-酪蛋白基因5 `端側翼區和包括第一外顯子及內含子在內的5 `端調控區；將人血清白蛋白cdna準確地置於牛-酪蛋白基因第二外顯子中的翻譯起始密碼子atg之後，而且沒有增加額外的序列和使人血清白蛋白cdna移碼；引入標記基因gfp ，便於在胚胎期鑒定陽性胚胎，減少受體；引入cre lox重組系統： （ ? ）標記基因gfp的兩端的兩個loxp位點可以在表達載體整合到基因組后，刪除標記基因； （ ? ）餘下的一個loxp位點可以和前面的lox2272位點組成cre重組酶介導的盒式交換系統。 -
Kyot2 lacked two lim domains from the c terminus and had a frameshift in the last exon, creating the rbp - j - binding region in the c terminus. kyotl had a negligible level of interaction with rbp - j. the binding site of kyot2 on rbp - j overlaps those of ramic and kyot2 repressed the rbp - j mediated transcriptional activation by ramic by competing with them for binding to rbp - j
在肌肉母細胞系czc12內過表達kyoth時可阻斷轉錄激活物notch胞內區或ebnaz對rbp依賴性啟動子的轉錄激活作用，這種阻斷作用呈劑量依賴性，提示kyoth可與notch胞內區或ebnaz競爭rbp j上的結合位點，從而抑制二者的轉錄激活活性 -
Grp94 is a stress protein whose transcriptional level increases under several physiologial and pathological conditions. this is the unfolded protein response ( upr ) pathway which associates with the signal transferring from ers to nucle - us
Grp94作為應激蛋白，其轉錄水平在許多生理和病理條件下都可明顯升高，與此相關的從內質網到細胞核的信號傳導通路就是未折疊蛋白反應（ theunfoldedproteinresponse ， upr ）通路。 -
The result of rt - pcr of transgenic plants showed : in transcriptional level, vp7 gene was expressed in leaves and fruits of 4 transgenic tomato plants under control of camv35s promoter ; vp7 gene was expressed in the tomato fruits not in the leaves of 3 transgenic tomato plants under control of fruit - specific tfp promoter
Rt - pcr分析證明，在組成型啟動子camv35s控制下的5株轉基因植株的葉片和果實中，有4株vp7基因在轉錄水平上表達；而在果實特異表達啟動子tfp控制下的3株轉基因植株， vp7基因僅在果實中獲得轉錄水平上表達。 -
Salsa roots was significantly higher than that in leaves and shoots after bei ng treated with 400mmol / l nacl for 72h. and we also concluded that the transcriptional level of sspip in s. salsa leaves was increased after being treated with 400 mmol / l nacl for 4d and 6d respectively. transformation of soybean has been far from routine
大豆的遺傳轉化一直是作物基因工程領域的難點之一，自hinchee和mccabe分別用兩種不同方法轉化大豆成功得到轉基因植株以來，有關於此方面的研究一直沒有突破性的進展，具體來說最重要的一點就是轉化效率沒有顯著提高。
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