Price Information
| Cat No. | Plasmid Name | Availability | Add to cart |
|---|---|---|---|
| V010946 | pET-55-DEST | In stock, instant shipping |
Buy one, get one free! |
Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.
Basic Vector Information
pET-55-DEST vector is designed to create expression clones (pEXPR) that are fused to a Strep-Tag II coding sequence at the N-terminal.
- Vector Name:
- pET-55-DEST
- Antibiotic Resistance:
- Ampicillin
- Length:
- 6835 bp
- Type:
- pET & Duet Vectors (Novagen)
- Replication origin:
- ori
- Source/Author:
- Novagen (EMD Millipore)
- Copy Number:
- High copy number
pET-55-DEST 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.
References
- Jiang L, Liu X, Xiong G, Liu H, Chen F, Wang L, Meng X, Liu G, Yu H, Yuan Y, Yi W, Zhao L, Ma H, He Y, Wu Z, Melcher K, Qian Q, Xu HE, Wang Y, Li J. DWARF 53 acts as a repressor of strigolactone signalling in rice. Nature. 2013 Dec 19;504(7480):401-5. doi: 10.1038/nature12870. Epub 2013 Dec 11. Erratum in: Nature. 2014 Feb 20;506(7488):396. PMID: 24336200; PMCID: PMC5802366.
pET-55-DEST vector Sequence
LOCUS pET-55-DEST. 6835 bp DNA circular SYN 01-JAN-1980
DEFINITION Gateway(R) Nova bacterial destination vector for expressing proteins
tagged at the N-terminus with Strep-Tag II.
ACCESSION .
VERSION .
KEYWORDS pET-55-DEST
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 6835)
AUTHORS Novagen (EMD Millipore)
TITLE Direct Submission
REFERENCE 2 (bases 1 to 6835)
AUTHORS .
TITLE Direct Submission
COMMENT SGRef: number: 1; type: "Journal Article"
FEATURES Location/Qualifiers
source 1..6835
/mol_type="other DNA"
/organism="synthetic DNA construct"
rep_origin 12..467
/label=f1 ori
/note="f1 bacteriophage origin of replication; arrow
indicates direction of (+) strand synthesis"
CDS complement(585..1442)
/label=AmpR
/note="beta-lactamase"
promoter complement(1443..1535)
/label=AmpR promoter
rep_origin 1616..2204
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
misc_feature complement(2390..2532)
/label=bom
/note="basis of mobility region from pBR322"
CDS complement(2637..2825)
/label=rop
/note="Rop protein, which maintains plasmids at low copy
number"
protein_bind complement(3363..3384)
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
CDS complement(3400..4479)
/label=lacI
/note="lac repressor"
promoter complement(4480..4557)
/label=lacI promoter
promoter 4870..4888
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
protein_bind 4889..4913
/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)."
RBS 4928..4950
/label=RBS
/note="efficient ribosome binding site from bacteriophage
T7 gene 10 (Olins and Rangwala, 1989)"
CDS 4957..4959
/codon_start=1
/product="start codon"
/label=start codon
/note="ATG"
/translation="M"
CDS 4966..4989
/label=Strep-Tag II
/note="peptide that binds Strep-Tactin(R), an engineered
form
of streptavidin"
protein_bind 4999..5123
/label=attR1
/note="recombination site for the Gateway(R) LR reaction"
promoter 5148..5178
/label=lac UV5 promoter
/note="E. coli lac promoter with an 'up' mutation"
CDS 5232..5888
/label=CmR
/note="chloramphenicol acetyltransferase"
CDS 6233..6535
/label=ccdB
/note="CcdB, a bacterial toxin that poisons DNA gyrase"
protein_bind complement(6579..6703)
/label=attR2
/note="recombination site for the Gateway(R) LR reaction"
CDS 6705..6722
/label=6xHis
/note="6xHis affinity tag"
terminator 6763..6810
/label=T7 terminator
/note="transcription terminator for bacteriophage T7 RNA
polymerase"