Price Information
| Cat No. | Plasmid Name | Availability | Add to cart |
|---|---|---|---|
| V014808 | pLac-6×His-T7 RNA polymerase | In stock, 1 week for quality controls |
Buy one, get one free! |
Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.
Basic Vector Information
- Vector Name:
- pLac-6×His-T7 RNA polymerase
- Antibiotic Resistance:
- Ampicillin
- Length:
- 5413 bp
- Type:
- Protein expression
- Replication origin:
- ori
- Host:
- E. coli
- Promoter:
- Lac
- Growth Temperature:
- 37℃
pLac-6×His-T7 RNA polymerase vector Map
Plasmid Protocol
1. Centrifuge at 5,000×g for 5 min.
2. Carefully open the tube and add 20 μl of sterile water to dissolve the DNA.
3. Close the tube and incubate for 10 minutes at room temperature.
4. Briefly vortex the tube and then do a quick spin to concentrate the liquid at the bottom. Speed is less than 5000×g.
5. Store the plasmid at -20 ℃.
6. The concentration of plasmid re-measurement sometimes differs from the nominal value, which may be due to the position of the lyophilized plasmid in the tube, the efficiency of the re-dissolution, the measurement bias, and adsorption on the wall of the tube, therefore, it is recommended to transform and extract the plasmid before using it
General Plasmid Transform Protocol
1. Take one 100μl of the competent cells and thaw it on ice for 10min, add 2μl of plasmid, then ice bath for 30min, then heat-shock it at 42℃ for 60s, do not stir, and then ice bath for 2min.
2. Add 900μl of LB liquid medium without antibiotics, and incubate at 37℃ for 45min (30℃ for 1-1.5 hours) with 180rpm shaking.
3. Centrifuge at 6000rpm for 5min, leave only 100μl of supernatant to resuspend the bacterial precipitate and spread it onto the target plasmid-resistant LB plate.
4. Invert the plate and incubate at 37℃ for 14h, or at 30℃ for 20h.
5. Pick a single colony into LB liquid medium, add the corresponding antibiotics, incubate at 220rpm for 14h, and extract the plasmid according to the experimental needs and the instructions of the plasmid extraction kit.
pLac-6×His-T7 RNA polymerase vector Sequence
LOCUS V014808 5413 bp DNA circular SYN 01-JAN-1980
DEFINITION Exported.
ACCESSION V014808
VERSION V014808
KEYWORDS .
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
.
REFERENCE 1 (bases 1 to 5413)
AUTHORS .
TITLE Direct Submission
FEATURES Location/Qualifiers
source 1..5413
/mol_type="other DNA"
/organism="synthetic DNA construct"
protein_bind 288..309
/label="CAP binding site"
/note="CAP binding activates transcription in the presence
of cAMP."
promoter 324..354
/label="lac promoter"
/note="promoter for the E. coli lac operon"
protein_bind 362..378
/label="lac operator"
/note="The lac repressor binds to the lac operator to
inhibit transcription in E. coli. This inhibition can be
relieved by adding lactose or
isopropyl-beta-D-thiogalactopyranoside (IPTG)."
primer_bind 386..402
/label="M13 rev"
/note="common sequencing primer, one of multiple similar
variants"
RBS 451..473
/label="RBS"
/note="efficient ribosome binding site from bacteriophage
T7 gene 10 (Olins and Rangwala, 1989)"
CDS 492..509
/label="6xHis"
/note="6xHis affinity tag"
CDS 519..533
/label="enterokinase site"
/note="enterokinase recognition and cleavage site"
CDS 534..3182
/note="T7 RNA polymerase from Escherichia phage T7.
Accession#: P00573"
/label="T7 RNA polymerase"
promoter complement(3548..3576)
/label="tet promoter"
/note="E. coli promoter for tetracycline efflux protein
gene"
promoter 3689..3793
/label="AmpR promoter"
CDS 3794..4651
/label="AmpR"
/note="beta-lactamase"
rep_origin 4825..5413
/direction=RIGHT
/label="ori"
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"