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pMDLg pRRE載體說明書
最近更新時間：2013-8-7
提 供 商：上海起發(fā)實(shí)驗(yàn)試劑有限公司資料大小：94.7KB
文件類型：PDF 文件下載次數(shù)：326次
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pMDLg pRRE載體
| 型號 | 載體名稱 | 出品公司 | 載體用途 |
| VMA0374 | pMDLg pRRE | Addgene | 慢病毒載體 |
This 3rd generation LV packaging plasmid includes gag, coding for the virion main structural proteins; pol, responsible for the retrovirus-specific enzymes; and RRE, a binding site for the Rev protein which facilitates export of the RNA from the nucleus. This plasmid does not include Rev. The third generation packaging system offers maximal biosafety but is more cumbersome, as it involves the transfection of four different plasmids in the producer cells.
Example of a 3rd generation packaging combo: pMDLg/pRRE + pRSV-Rev + pMD2.G.
Please note that most Trono lab lentivectors contain a wt 5'LTR and can be packaged only using the 2nd generation packaging system （as the wt 5'LTR requires TAT for activation）.
If you wish to use the 3rd generation packaging system, you need to have a lentivector with a chimeric 5'LTR （e.g. CCL-, RRL-, etc） in which the HIV promoter is replaced with CMV or RSV, thus making it TAT-independent. The lentivectors carrying the chimeric 5'LTR can be packaged into either a 2nd or 3rd generation packaging system.
