Price Information
| Cat No. | Plasmid Name | Availability | Add to cart |
|---|---|---|---|
| V012723 | pLVX-IRES-mCherry | In stock (lyophilized plasmid) |
Buy one, get one free! |
Two vials of lyophilized plasmid will be delivered, each vial is about 5µg.
Basic Vector Information
pLVX-IRES-mCherry is an HIV-1-based, lentiviral expression vector that allows the simultaneous expression of your protein of interest and mCherry in virtually any mammalian cell type, including primary cells. mCherry is a mutant fluorescent protein derived from the tetrameric Discosoma sp. red fluorescent protein, DsRed (1). The vector expresses the two proteins from a bicistronic mRNA transcript, allowing mCherry to be used as an indicator of transduction efficiency and a marker for selection by flow cytometry. Expression of the bicistronic transcript is driven by the constitutively active human cytomegalovirus immediate early promoter (PCMV IE) located just upstream of the MCS. An encephalomyocarditis virus (EMCV) internal ribosome entry site (IRES), positioned between the MCS and mCherry, facilitates cap-independent translation of mCherry from an internal start site at the IRES/mCherry junction (1). pLVX-IRES-mCherry contains all of the viral processing elements necessary for the production of replication-incompetent lentivirus, as well as elements to improve viral titer, transgene expression, and overall vector function. The woodchuck hepatitis virus posttranscriptional regulatory element (WPRE) promotes RNA processing events and enhances nuclear export of viral RNA (2), leading to increased viral titers from packaging cells. In addition, the vector includes a Rev-response element (RRE), which further increases viral titers by enhancing the transport of unspliced viral RNA out of the nucleus (3). Finally, pLVX-IRES-mCherry also contains a central polypurine tract/central termination sequence element (cPPT/CTS). During target cell infection, this element creates a central DNA flap that increases nuclear import of the viral genome, resulting in improved vector integration and more efficient transduction (4). The vector also contains a pUC origin of replication and an E. coli ampicillin resistance gene (Ampr) for propagation and selection in bacteria.
pLVX-IRES-mCherry vector Vector Map
Plasmid Resuspension 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 ℃.
References
- Mereby SA, Maehigashi T, Holler JM, Kim DH, Schinazi RF, Kim B. Interplay of ancestral non-primate lentiviruses with the virus-restricting SAMHD1 proteins of their hosts. J Biol Chem. 2018 Oct 19;293(42):16402-16412.
pLVX-IRES-mCherry vector Sequence
LOCUS pLVX-IRES-mCherr 8172 bp DNA circular SYN 08-APR-2021
DEFINITION synthetic circular DNA.
ACCESSION .
VERSION .
KEYWORDS pLVX-IRES-mCherry.
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 8172)
TITLE Direct Submission
REFERENCE 2 (bases 1 to 8172)
AUTHORS .
TITLE Direct Submission
COMMENT SGRef: number: 1; type: "Journal Article"
FEATURES Location/Qualifiers
source 1..8172
/mol_type="other DNA"
/organism="synthetic DNA construct"
LTR 1..634
/label=3' LTR
/note="3' long terminal repeat (LTR) from HIV-1"
misc_feature 681..806
/label=HIV-1 Psi
/note="packaging signal of human immunodeficiency virus
type 1"
misc_feature 1303..1536
/label=RRE
/note="The Rev response element (RRE) of HIV-1 allows for
Rev-dependent mRNA export from the nucleus to the
cytoplasm."
CDS 1721..1765
/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 1914..1955
/note="Protein Tat from Human immunodeficiency virus type 1
group M subtype B (isolate WMJ22). Accession#: P12509"
misc_feature 2027..2144
/label=cPPT/CTS
/note="central polypurine tract and central termination
sequence of HIV-1"
enhancer 2201..2504
/label=CMV enhancer
/note="human cytomegalovirus immediate early enhancer"
promoter 2505..2708
/label=CMV promoter
/note="human cytomegalovirus (CMV) immediate early
promoter"
misc_feature 2843..3420
/label=IRES2
/note="internal ribosome entry site (IRES) of the
encephalomyocarditis virus (EMCV)"
CDS 3417..4124
/label=mCherry
/note="monomeric derivative of DsRed fluorescent protein
(Shaner et al., 2004)"
misc_feature 4141..4729
/label=WPRE
/note="woodchuck hepatitis virus posttranscriptional
regulatory element"
LTR 4936..5569
/label=5' LTR
/note="5' long terminal repeat (LTR) from HIV-1"
primer_bind complement(5697..5713)
/label=M13 rev
/note="common sequencing primer, one of multiple similar
variants"
protein_bind complement(5721..5737)
/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)."
promoter complement(5745..5775)
/label=lac promoter
/note="promoter for the E. coli lac operon"
protein_bind complement(5790..5811)
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
rep_origin complement(6099..6687)
/direction=LEFT
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
CDS complement(6861..7718)
/label=AmpR
/note="beta-lactamase"
promoter complement(7719..7823)
/label=AmpR promoter
polyA_signal 7871..8005
/label=SV40 poly(A) signal
/note="SV40 polyadenylation signal"