Price Information
| Cat No. | Plasmid Name | Availability | Add to cart |
|---|---|---|---|
| V010450 | pLKO.1 puro | 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
pLKO.1 puro is a 3rd gen lentiviral backbone for cloning and expression of new shRNA sequences. The selection marker is puromycin.
- Vector Name:
- pLKO.1 puro
- Antibiotic Resistance:
- Ampicillin
- Length:
- 7032 bp
- Type:
- Viral Expression & Packaging Vectors
- Replication origin:
- ori
- Source/Author:
- Weinberg Lab / Addgene
- Selection Marker:
- Puromycin
- Copy Number:
- High copy number
- Promoter:
- hPGK
- Growth Strain(s):
- JM108
- Growth Temperature:
- 37℃
pLKO.1 puro 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
- Kanungo J. Puromycin-resistant lentiviral control shRNA vector, pLKO.1 induces unexpected cellular differentiation of P19 embryonic stem cells. Biochem Biophys Res Commun. 2017 Apr 29;486(2):481-485.
- Takenaka C, Nishishita N, Takada N, Jakt LM, Kawamata S. Effective generation of iPS cells from CD34+ cord blood cells by inhibition of p53. Exp Hematol. 2010 Feb;38(2):154-62. doi: 10.1016/j.exphem.2009.11.003. Epub 2009 Nov 14. PMID: 19922768.
pLKO.1 puro vector Sequence
LOCUS Exported 7032 bp DNA circular SYN 17-DEC-2020
DEFINITION synthetic circular DNA
ACCESSION .
VERSION .
KEYWORDS .
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 7032)
AUTHORS hfytfiu
TITLE Direct Submission
FEATURES Location/Qualifiers
source 1..7032
/mol_type="other DNA"
/organism="synthetic DNA construct"
CDS 529..1128
/codon_start=1
/gene="pac from Streptomyces alboniger"
/product="puromycin N-acetyltransferase"
/label=PuroR
/note="confers resistance to puromycin"
/translation="MTEYKPTVRLATRDDVPRAVRTLAAAFADYPATRHTVDPDRHIER
VTELQELFLTRVGLDIGKVWVADDGAAVAVWTTPESVEAGAVFAEIGPRMAELSGSRLA
AQQQMEGLLAPHRPKEPAWFLATVGVSPDHQGKGLGSAVVLPGVEAAERAGVPAFLETS
APRNLPFYERLGFTVTADVEVPEGPRTWCMTRKPGA"
LTR 1256..1489
/label=3' LTR (Delta-U3)
/note="self-inactivating 3' long terminal repeat (LTR) from
HIV-1"
polyA_signal 1561..1682
/label=SV40 poly(A) signal
/note="SV40 polyadenylation signal"
rep_origin 1722..1857
/label=SV40 ori
/note="SV40 origin of replication"
promoter complement(1878..1896)
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
primer_bind complement(1906..1922)
/label=M13 fwd
/note="common sequencing primer, one of multiple similar
variants"
rep_origin 2064..2519
/direction=RIGHT
/label=f1 ori
/note="f1 bacteriophage origin of replication; arrow
indicates direction of (+) strand synthesis"
promoter 2545..2649
/gene="bla"
/label=AmpR promoter
CDS 2650..3510
/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"
rep_origin 3681..4269
/direction=RIGHT
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
protein_bind 4557..4578
/label=CAP binding site
/bound_moiety="E. coli catabolite activator protein"
/note="CAP binding activates transcription in the presence
of cAMP."
promoter 4593..4623
/label=lac promoter
/note="promoter for the E. coli lac operon"
protein_bind 4631..4647
/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)."
primer_bind 4655..4671
/label=M13 rev
/note="common sequencing primer, one of multiple similar
variants"
promoter 4692..4710
/label=T3 promoter
/note="promoter for bacteriophage T3 RNA polymerase"
promoter 4736..4964
/label=RSV promoter
/note="Rous sarcoma virus enhancer/promoter"
LTR 4965..5145
/label=5' LTR (truncated)
/note="truncated 5' long terminal repeat (LTR) from HIV-1"
misc_feature 5192..5317
/label=HIV-1 Psi
/note="packaging signal of human immunodeficiency virus
type 1"
misc_feature 5810..6043
/label=RRE
/note="The Rev response element (RRE) of HIV-1 allows for
Rev-dependent mRNA export from the nucleus to the
cytoplasm."
promoter 6570..6810
/label=U6 Promoter
/note="RNA polymerase III promoter for human U6 snRNA"
misc_feature 6863..6980
/label=cPPT/CTS
/note="central polypurine tract and central termination
sequence of HIV-1"
promoter join(7029..7032,1..507)
/label=hPGK promoter
/note="human phosphoglycerate kinase 1 promoter"