Price Information
| Cat No. | Plasmid Name | Availability | Buy one, get one free! (?) |
|---|---|---|---|
| V010930 | pETDuet-1 | In stock, instant shipping |
Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.
Basic Vector Information
pETDuet-1 is a commonly used E. coli protein dual expression vector plasmid
- Vector Name:
- pETDuet-1
- Antibiotic Resistance:
- Ampicillin
- Length:
- 5417 bp
- Type:
- pET & Duet Vectors (Novagen)
- Replication origin:
- ori
- Source/Author:
- Novagen (EMD Millipore)
- Copy Number:
- High copy number
- Growth Strain(s):
- DH10B
- Growth Temperature:
- 37℃
pETDuet-1 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
- Chang Z, Liu D, Yang Z, Wu J, Zhuang W, Niu H, Ying H. Efficient Xylitol Production from Cornstalk Hydrolysate Using Engineered Escherichia coli Whole Cells. J Agric Food Chem. 2018 Dec 19;66(50):13209-13216. doi: 10.1021/acs.jafc.8b04666. Epub 2018 Dec 5. PMID: 30465421.
- Lan J, Ji S, Yang C, Cai G, Lu J, Li X. Extracellular Expression of Feruloyl Esterase and Xylanase in Escherichia coli for Ferulic Acid Production from Agricultural Residues. Microorganisms. 2023 Jul 25;11(8):1869. doi: 10.3390/microorganisms11081869. PMID: 37630429; PMCID: PMC10456899.
- Özcan D, SİpahİoĞlu HM. Simultaneous production of alpha and beta amylase enzymes using separate gene bearing recombinant vectors in the same Escherichia coli cells. Turk J Biol. 2020 Aug 19;44(4):201-207. doi: 10.3906/biy-2001-71. PMID: 32922127; PMCID: PMC7478135.
pETDuet-1 vector Sequence
LOCUS Exported 5417 bp DNA circular SYN 10-SEP-2025
DEFINITION Bacterial vector for the co-expression of two genes.
ACCESSION .
VERSION .
KEYWORDS pETDuet-1
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 5417)
AUTHORS Novagen (EMD Millipore)
TITLE Direct Submission
REFERENCE 2 (bases 1 to 5417)
TITLE Direct Submission
REFERENCE 3 (bases 1 to 5417)
TITLE Direct Submission
REFERENCE 4 (bases 1 to 5417)
AUTHORS .
TITLE Direct Submission
COMMENT SGRef: number: 1; type: "Journal Article"
COMMENT SGRef: number: 2; type: "Journal Article"
COMMENT SGRef: number: 3; type: "Journal Article"
FEATURES Location/Qualifiers
source 1..5417
/mol_type="other DNA"
/organism="synthetic DNA construct"
source join(303..5417,1..302)
/mol_type="other DNA"
/organism="synthetic DNA construct"
promoter 286..304
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
protein_bind 305..329
/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 344..366
/label=RBS
/note="efficient ribosome binding site from bacteriophage
T7 gene 10 (Olins and Rangwala, 1989)"
CDS 373..375
/codon_start=1
/product="start codon"
/label=start codon
/note="ATG"
/translation="M"
CDS 385..402
/label=6xHis
/note="6xHis affinity tag"
promoter 516..534
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
protein_bind 535..559
/label=lac repressor encoded by lacI binding site
/bound_moiety="lac repressor encoded by lacI"
/note="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 588..593
/note="ribosome binding site"
CDS 602..604
/codon_start=1
/product="start codon"
/label=start codon
/note="ATG"
/translation="M"
CDS 668..712
/label=S-Tag
/note="affinity and epitope tag derived from pancreatic
ribonuclease A"
terminator 764..811
/label=T7 terminator
/note="transcription terminator for bacteriophage T7 RNA
polymerase"
rep_origin 848..1303
/label=f1 ori
/note="f1 bacteriophage origin of replication; arrow
indicates direction of (+) strand synthesis"
CDS complement(1418..2278)
/codon_start=1
/gene="bla"
/product="beta-lactamase"
/label=AmpR
/note="confers resistance to ampicillin, carbenicillin, and
related antibiotics"
/translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVEYS
PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
EPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
LIKHW"
promoter complement(2279..2371)
/label=AmpR promoter
rep_origin 2452..3040
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
misc_feature complement(3226..3365)
/label=bom
/note="basis of mobility region from pBR322"
CDS complement(3467..3658)
/codon_start=1
/gene="rop"
/product="Rop protein, which maintains plasmids at low copy
number"
/label=rop
/translation="MTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
DELYRSCLARFGDDGENL"
protein_bind complement(4196..4217)
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
CDS complement(4230..5312)
/codon_start=1
/gene="lacI"
/product="lac repressor"
/label=lacI
/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)."
/translation="MKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAEL
NYIPNRVAQQLAGKQSLLIGVATSSLALHAPSQIVAAIKSRADQLGASVVVSMVERSGV
EACKAAVHNLLAQRVSGLIINYPLDDQDAIAVEAACTNVPALFLDVSDQTPINSIIFSH
EDGTRLGVEHLVALGHQQIALLAGPLSSVSARLRLAGWHKYLTRNQIQPIAEREGDWSA
MSGFQQTMQMLNEGIVPTAMLVANDQMALGAMRAITESGLRVGADISVVGYDDTEDSSC
YIPPLTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNTQTASPR
ALADSLMQLARQVSRLESGQ"
promoter complement(5313..5390)
/label=lacI promoter