Price Information
| Cat No. | Plasmid Name | Availability | Buy one, get one free! (?) |
|---|---|---|---|
| V005494 | lenti_dCas9-KRAB-MeCP2 | In stock, instant shipping |
Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.
Basic Vector Information
Bipartite dCas9 repressor (dCas9-KRAB-MeCP2) in a UCOE-SFFV-dCas9 lentiviral vector. The plasmid vector lenti_dCas9-KRAB-MeCP2 is a lentiviral tool designed for targeted gene repression. It utilizes a catalytically inactive dCas9 fused to two repressor domains, KRAB and MeCP2, to synergistically silence specific genes guided by a designed RNA.
- Vector Name:
- lenti_dCas9-KRAB-MeCP2
- Antibiotic Resistance:
- Ampicillin
- Length:
- 15398 bp
- Type:
- Mammalian Expression, Lentiviral
- Replication origin:
- ori
- Source/Author:
- Xiangtian Tan
- Selection Marker:
- Blasticidin
- Copy Number:
- High copy number
- Promoter:
- SFFV
- Cloning Method:
- Restriction Enzyme
- 5' Primer:
- AACGGCAGCAGCGGATC
- 3' Primer:
- CGACCTGCAGGCATGCAA
- Growth Strain(s):
- DH10B
- Growth Temperature:
- 37℃
lenti_dCas9-KRAB-MeCP2 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
- Tan X, Worley J, Turunen M, Wong K, Fernández EC, Paull E, Jones S, Wang J, Noh H, Salvatori B, Chavez A, Califano A bioRxiv 2021.06.28.449297
lenti_dCas9-KRAB-MeCP2 vector Sequence
LOCUS V005494 15398 bp DNA circular SYN 13-MAY-2021
DEFINITION Exported.
ACCESSION V005494
VERSION V005494
KEYWORDS lenti_dCas9-KRAB-MeCP2
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
.
REFERENCE 1 (bases 1 to 15398)
TITLE Validation of VIPER-inferred master regulators by pooled CRISPR
screening
JOURNAL Unpublished
REFERENCE 2 (bases 1 to 15398)
TITLE Direct Submission
REFERENCE 3 (bases 1 to 15398)
AUTHORS .
TITLE Direct Submission
COMMENT SGRef: number: 1; type: "Journal Article"; journalName:
"Unpublished"
SGRef: number: 2; type: "Journal Article"
FEATURES Location/Qualifiers
source 1..15398
/mol_type="other DNA"
/organism="synthetic DNA construct"
promoter 103..510
/label="SFFV promoter"
/note="spleen focus-forming virus long terminal repeat
(LTR) promoter"
CDS 585..4688
/label="dCas9"
/note="catalytically dead mutant of the Cas9 endonuclease
from the Streptococcus pyogenes Type II CRISPR/Cas system"
CDS 4692..4718
/codon_start=1
/product="HA (human influenza hemagglutinin) epitope tag"
/label="HA"
/translation="YPYDVPDYA"
CDS 4737..4757
/codon_start=1
/product="nuclear localization signal of SV40 (simian virus
40) large T antigen"
/label="SV40 NLS"
/translation="PKKKRKV"
CDS 4764..4784
/codon_start=1
/product="nuclear localization signal of SV40 (simian virus
40) large T antigen"
/label="SV40 NLS"
/translation="PKKKRKV"
CDS 4824..5009
/label="KRAB"
/note="Kruppel-associated box (KRAB) transcriptional
repression domain from the human zinc finger protein ZNF10
(Margolin et al., 1994)"
CDS 5043..5063
/label="SV40 NLS"
/note="nuclear localization signal of SV40 (simian virus
40) large T antigen"
CDS 5073..5930
/label="MeCP2"
/note="transcriptional repression domain from rat
methyl-CpG-binding protein 2 (Nan et al., 1997)"
CDS 5940..5996
/codon_start=1
/product="2A peptide from porcine teschovirus-1
polyprotein"
/label="P2A"
/note="Eukaryotic ribosomes fail to insert a peptide bond
between the Gly and Pro residues, yielding separate
polypeptides."
/translation="ATNFSLLKQAGDVEENPGP"
CDS 5997..6392
/label="BSD"
/note="blasticidin S deaminase"
misc_feature 6456..7044
/label="WPRE"
/note="woodchuck hepatitis virus posttranscriptional
regulatory element"
primer_bind complement(7047..7063)
/label="KS primer"
/note="common sequencing primer, one of multiple similar
variants"
primer_bind complement(7048..7064)
/label="pBluescriptKS"
/note="For pBluescript vector"
LTR 7154..7387
/label="3' LTR (Delta-U3)"
/note="self-inactivating 3' long terminal repeat (LTR) from
HIV-1"
promoter complement(7412..7430)
/label="SP6 promoter"
/note="promoter for bacteriophage SP6 RNA polymerase"
primer_bind complement(7720..7739)
/label="pBRrevBam"
/note="pBR322 vectors, tet region, downstream of BamHI,
reverse primer"
primer_bind complement(7953..7972)
/label="pRS-marker"
/note="pRS vectors, use to sequence yeast selectable
marker"
primer_bind 8072..8094
/label="pGEX 3'"
/note="pGEX vectors, reverse primer"
primer_bind complement(8132..8150)
/label="pBRforEco"
/note="pBR322 vectors, upsteam of EcoRI site, forward
primer"
promoter 8218..8322
/label="AmpR promoter"
CDS 8323..9180
/label="AmpR"
/note="beta-lactamase"
rep_origin 9354..9942
/label="ori"
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
primer_bind 10096..10113
/label="L4440"
/note="L4440 vector, forward primer"
promoter 10188..10517
/label="SV40 promoter"
/note="SV40 enhancer and early promoter"
intron 11651..11716
/label="small t intron"
/note="SV40 (simian virus 40) small t antigen intron"
CDS 11846..11866
/label="SV40 NLS"
/note="nuclear localization signal of SV40 (simian virus
40) large T antigen"
polyA_signal 12291..12425
/label="SV40 poly(A) signal"
/note="SV40 polyadenylation signal"
LTR 12593..13226
/label="3' LTR"
/note="3' long terminal repeat (LTR) from HIV-1"
misc_feature 13273..13398
/label="HIV-1 Psi"
/note="packaging signal of human immunodeficiency virus
type 1"
misc_feature 13895..14128
/label="RRE"
/note="The Rev response element (RRE) of HIV-1 allows for
Rev-dependent mRNA export from the nucleus to the
cytoplasm."
CDS 14313..14357
/label="gp41 peptide"
/note="antigenic peptide corresponding to amino acids 655
to 669 of the HIV envelope protein gp41 (Lutje Hulsik et
al., 2013)"
CDS 14506..14547
/note="Protein Tat from Human immunodeficiency virus type 1
group M subtype B (isolate WMJ22). Accession#: P12509"
/label="Protein Tat"
misc_feature 14642..14759
/label="cPPT/CTS"
/note="central polypurine tract and central termination
sequence of HIV-1"