Price Information
| Cat No. | Plasmid Name | Availability | Add to cart |
|---|---|---|---|
| V011029 | pET-15b | 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
- Vector Name:
- pET-15b
- Antibiotic Resistance:
- Ampicillin
- Length:
- 5705 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℃
pET-15b 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.
pET-15b vector Sequence
LOCUS Exported 5705 bp DNA circular SYN 12-AUG-2024
DEFINITION synthetic circular DNA
ACCESSION .
VERSION .
KEYWORDS .
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 5705)
AUTHORS 11111111
TITLE Direct Submission
FEATURES Location/Qualifiers
source 1..5705
/mol_type="other DNA"
/organism="synthetic DNA construct"
promoter 104..208
/gene="bla"
/label=AmpR promoter
CDS 209..1069
/codon_start=1
/gene="bla"
/product="beta-lactamase"
/label=AmpR
/note="confers resistance to ampicillin, carbenicillin, and
related antibiotics"
/translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRVDAGQEQLGRRIHYSQNDLVEYS
PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
EPELNEAIPNDERDTTMPAAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
LIKHW"
rep_origin 1240..1828
/direction=RIGHT
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
misc_feature 2014..2153
/label=bom
/note="basis of mobility region from pBR322"
CDS complement(2255..2446)
/codon_start=1
/gene="rop"
/product="Rop protein, which maintains plasmids at low copy
number"
/label=rop
/translation="MTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
DELYRSCLARFGDDGENL"
CDS complement(3758..4840)
/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(4841..4918)
/gene="lacI"
/label=lacI promoter
promoter 5227..5245
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
protein_bind 5246..5270
/label=lac operator
/bound_moiety="lac repressor encoded by 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)."
CDS 5326..5343
/codon_start=1
/product="6xHis affinity tag"
/label=6xHis
/translation="HHHHHH"
CDS 5353..5370
/codon_start=1
/product="thrombin recognition and cleavage site"
/label=thrombin site
/translation="LVPRGS"
terminator 5446..5493
/label=T7 terminator
/note="transcription terminator for bacteriophage T7 RNA
polymerase"
promoter complement(5668..5696)
/label=tet promoter
/note="E. coli promoter for tetracycline efflux protein
gene"