Product Name: pSF-H1
Product Code: OG52
Size (bp): 3801 bp
Bacterial Antibiotic Selection: KanR
Origin and Compatibility: pUC high copy derived from pBR322
Bacterial Copy Number: 500-700 per cell
Promoter: Human H1 promoter
The expression of short hairpin RNA in eukaryotic cells. The H1 is transcribed by RNA polymerase III (RNA pol III) which terminates transcription at a string of thymidine residues typically a minimum of five residues in mammalian cells. Unlike most SnapFastTM vectors this plasmid contains an RNA pol III terminator downstream of the XhoI site although it is more common to insert a terminator sequence at the end of the sequence you insert into the MCS that encodes a shRNA.
Please select the file type you require. For reference most cloning programs will import a .gb (Genbank) file and will show all of the plasmids features automatically when downloaded and imported.
This vector contains an RNA polymerase III promoter (H1) which will terminate at a string of thymidine residues. Typically this is 5-6 T residues in length. This plasmid contains a string of thymidines in the multiple cloning site to allow termination.
This vector has a modified MCS compared to standard plasmids. The ATG start codon in the NcoI site has been removed as have the Shine-Dalgarno and KOZAK sequences as these are not required for RNA Pol3 expressed transcripts.
The terminator for RNA polymerase III has been positioned immediately downstream of the XhoI site. There is an additional string of Thymidine residues (the terminator sequence for RNA Pol III) at the end of the SV40 polyA region however using this site will produce a long transcript and has not been validated. We recommend inserting your hairpin DNA sequence between Hind3 and XhoI. The theoretical RNA position +1 is the first base of the NotI restriction site.
This product is part of our SnapFast plasmid range, for more information on the Intellectual property status of this plasmid please click here