Single miR30-shRNA piggyBac shRNA knockdown vector
5' ITR: 5' inverted terminal repeat. When a DNA sequence is flanked by two ITRs, the piggyBac transpose can recognize them, and insert the flanked region including the two ITRs into the host genome.
Promoter: Drives transcription of the downstream ORF and shRNAmiR polycistron. This is an RNA polymerase II promoter, rather than an RNA polymerase III promoter such as U6.
Kozak: Kozak consensus sequence. It is placed in front of the start codon of the ORF of interest because it is believed to facilitate translation initiation in eukaryotes.
ORF: The open reading frame of your gene of interest or reporter gene is placed here. This can be used to monitor shRNA expression.
5' miR-30E: An optimized version of the human miR30 5’ context sequence. Facilitates maturation and processing of the shRNA and separation from the tandemly transcribed ORF and other shRNAs.
3' miR-30E: An optimized version of the human miR30 3’ context sequence. Facilitates maturation and processing of the shRNA and separation from the tandemly transcribed ORF and other shRNAs.
miR30-shRNA: This sequence is derived from your target sequence and is transcribed to form the stem portion of the “hairpin” structure of the shRNA.
rBG pA: Rabbit β-globin polyadenylation signal. Facilitates transcription termination and polyadenylation of the upstream ORF and shRNAmiR polycistron.
CMV promoter: Human cytomegalovirus immediate early promoter. It drives the ubiquitous expression of the downstream marker gene.
Marker: A drug selection gene (such as neomycin resistance), a visually detectable gene (such as EGFP), or a dual-reporter gene (such as EGFP/Neo). This allows cells transduced with the vector to be selected and/or visualized.
BGH pA: Bovine growth hormone polyadenylation signal. It facilitates transcriptional termination of the upstream ORF.
3' ITR: 3' inverted terminal repeat.
Ampicillin: Ampicillin resistance gene. It allows the plasmid to be maintained by ampicillin selection in E. coli.
pUC ori: pUC origin of replication. Plasmids carrying this origin exist in high copy numbers in E. coli.
Multiple miR30-shRNA piggyBac shRNA knockdown vector
5' ITR: 5' inverted terminal repeat. When a DNA sequence is flanked by two ITRs, the piggyBac transpose can recognize them, and insert the flanked region including the two ITRs into the host genome.
Promoter: Drives transcription of the downstream ORF and shRNAmiR polycistron. This is an RNA polymerase II promoter, rather than an RNA polymerase III promoter such as U6.
Kozak: Kozak consensus sequence. It is placed in front of the start codon of the ORF of interest because it is believed to facilitate translation initiation in eukaryotes.
ORF: The open reading frame of your gene of interest or reporter gene is placed here. This can be used to monitor shRNA expression.
5' miR-30E: An optimized version of the human miR30 5’ context sequence. Facilitates maturation and processing of the shRNA and separation from the tandemly transcribed ORF and other shRNAs.
3' miR-30E: An optimized version of the human miR30 3’ context sequence. Facilitates maturation and processing of the shRNA and separation from the tandemly transcribed ORF and other shRNAs.
miR30-shRNA #1: This sequence is derived from your first target sequence and is transcribed to form the stem portion of the “hairpin” structure of the shRNA.
miR30-shRNA #2: This sequence is derived from your second target sequence and is transcribed to form the stem portion of the “hairpin” structure of the shRNA.
miR30-shRNA #3: This sequence is derived from your third target sequence and is transcribed to form the stem portion of the “hairpin” structure of the shRNA.
miR30-shRNA #4: This sequence is derived from your fourth target sequence and is transcribed to form the stem portion of the “hairpin” structure of the shRNA.
rBG pA: Rabbit β-globin polyadenylation signal. Facilitates transcription termination and polyadenylation of the upstream ORF and shRNAmiR polycistron.
CMV promoter: Human cytomegalovirus immediate early promoter. It drives the ubiquitous expression of the downstream marker gene.
Marker: A drug selection gene (such as neomycin resistance), a visually detectable gene (such as EGFP), or a dual-reporter gene (such as EGFP/Neo). This allows cells transduced with the vector to be selected and/or visualized.
BGH pA: Bovine growth hormone polyadenylation signal. It facilitates transcriptional termination of the upstream ORF.
3' ITR: 3' inverted terminal repeat.
Ampicillin: Ampicillin resistance gene. It allows the plasmid to be maintained by ampicillin selection in E. coli.
pUC ori: pUC origin of replication. Plasmids carrying this origin exist in high copy numbers in E. coli.