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Plasmid Name
pRET.IS.IRES-EGFP N2
RRID:Addgene_1834 RRID Copied  
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RRID:Addgene_1834
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Plasmid Information

URL: http://www.addgene.org/1834

Proper Citation: RRID:Addgene_1834

Bacterial Resistance: Ampicillin

Defining Citation: PMID:10572187

Vector Backbone Description: Backbone Size:0; Vector Backbone:pRET; Vector Types:Mammalian Expression, Retroviral, Cre/Lox; Bacterial Resistance:Ampicillin

Comments: See scanned map. This is the original RET-EGFP vector. The highest virus titer that can be obtained with this construct is ~4x10^4 cfu/ml: the mRNA instability signal seems to block transcription of the virus genome at least to some extent. There are two versions, N1 and N2. Version N1 contains two XbaI sites and can be used for transfection after isolation of the XbaI-XbaI fragment. However, N1 contains an additional cryptic poly A signal between EGFP and GHpA, and its orientation is the same as that of virus transcription (from right to left in the figure). This means that N1 can not be used for the virus production: a full-length virus RNA is not produced efficiently. In contrast, N2 does not have such a cryptic poly A signal and is suitable for virus production. However, N2 contains an additional XbaI site between EGFP and GHpA, making it very difficult to isolate all the essential components of the vector on a single XbaI-XbaI fragment. Because of a weak NEO promoter, the number of G418-resistant colonies obtained after transfection (N1) or infection (N2) is fewer than that generated by other RET vectors with a strong NEO promoter. (Leder #C-1011)

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Data and Source Information

Source: Addgene