Price Information
| Cat No. | Plasmid Name | Availability | Buy one, get one free! (?) |
|---|---|---|---|
| V002615 | pTKRED | In stock, instant shipping |
Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.
Basic Vector Information
pSC101 ori is a low-copy replication origin that requires the Rep101 protein, which is a temperature-sensitive protein. When bacteria containing a plasmid with this ori is cultured at 37℃, the plasmid will be lost.
- Vector Name:
- pTKRED
- Antibiotic Resistance:
- Streptomycin
- Length:
- 10798 bp
- Type:
- Helper vector
- Replication origin:
- pSC101 ori
- Source/Author:
- Kuhlman TE, Cox EC.
- Copy Number:
- Low Copy
- Promoter:
- araBAD
- Growth Strain(s):
- Top10
- Growth Temperature:
- 30℃
pTKRED 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
- Kuhlman TE, Cox EC. Site-specific chromosomal integration of large synthetic constructs. Nucleic Acids Res. 2010 Apr;38(6):e92. doi: 10.1093/nar/gkp1193. Epub 2010 Jan 4. PMID: 20047970; PMCID: PMC2847246.
pTKRED vector Sequence
LOCUS Exported 10798 bp DNA circular SYN 14-JUL-2025
DEFINITION synthetic circular DNA
ACCESSION .
VERSION .
KEYWORDS pTKRED
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 10798)
AUTHORS .
TITLE Direct Submission
FEATURES Location/Qualifiers
source 1..10798
/mol_type="other DNA"
/organism="synthetic DNA construct"
CDS 1..681
/codon_start=1
/gene="exo"
/product="5' to 3' double-stranded DNA exonuclease in the
lambda Red system"
/label=Exo
/note="creates 3' single-stranded DNA tails"
/translation="MTPDIILQRTGIDVRAVEQGEDAWHKLRLGVITASEVHNVIAKPR
SGKKWPDMKMSYFHTLLAEVCTGVAPEVNAKALAWGKQYENDARTLFEFTSGVNVTESP
IIYRDESMRTACSPDGLCSDGNGLELKCPFTSRDFMKFRLGGFEAIKSAYMAQVQYSMW
VTRKNAWYFANYDPRMKREGLHYVVIERDEKYMASFDEIVPEFIEKMDEALAEIGFVFG
EQWR"
CDS complement(1005..1796)
/codon_start=1
/gene="aadA"
/product="aminoglycoside adenylyltransferase (Murphy,
1985)"
/label=SmR
/note="confers resistance to spectinomycin and
streptomycin"
/translation="MREAVIAEVSTQLSEVVGVIERHLEPTLLAVHLYGSAVDGGLKPH
SDIDLLVTVTVRLDETTRRALINDLLETSASPGESEILRAVEVTIVVHDDIIPWRYPAK
RELQFGEWQRNDILAGIFEPATIDIDLAILLTKAREHSVALVGPAAEELFDPVPEQDLF
EALNETLTLWNSPPDWAGDERNVVLTLSRIWYSAVTGKIAPKDVAAYWAMERLPAQYQP
VILEARQAYLGQEEDRLASRADQLEEFVHYVKGEITKVVGK"
RBS 3091..3099
/label=Shine-Dalgarno sequence
/note="full consensus sequence for ribosome-binding sites
upstream of start codons in E. coli; complementary to a
region in the 3' end of the 16S rRNA (Chen et al., 1994)"
promoter complement(3126..3410)
/gene="araBAD"
/label=araBAD promoter
/note="promoter of the L-arabinose operon of E. coli; the
araC regulatory gene is transcribed in the opposite
direction (Guzman et al., 1995)"
CDS 3437..4315
/codon_start=1
/gene="araC"
/product="L-arabinose regulatory protein"
/label=araC
/translation="MAEAQNDPLLPGYSFNAHLVAGLTPIEANGYLDFFIDRPLGMKGY
ILNLTIRGQGVVKNQGREFVCRPGDILLFPPGEIHHYGRHPEAREWYHQWVYFRPRAYW
HEWLNWPSIFANTGFFRPDEAHQPHFSDLFGQIINAGQGEGRYSELLAINLLEQLLLRR
MEAINESLHPPMDNRVREACQYISDHLADSNFDIASVAQHVCLSPSRLSHLFRQQLGIS
VLSWREDQRISQAKLLLSTTRMPIATVGRNVGFDDQLYFSRVFKKCTGASPSEFRAGCE
EKVNDVAVKLS"
rep_origin 5271..5493
/label=pSC101 ori
/note="low-copy replication origin that requires the Rep101
protein"
CDS 5541..6491
/codon_start=1
/gene="rep101 encoding an A56V mutation"
/product="temperature-sensitive version of the RepA protein
needed for replication with the pSC101 origin (Armstrong et
al., 1984)"
/label=Rep101(Ts)
/translation="MSELVVFKANELAISRYDLTEHETKLILCCVALLNPTIENPTRKE
RTVSFTYNQYVQMMNISRENAYGVLAKATRELMTRTVEIRNPLVKGFEIFQWTNYAKFS
SEKLELVFSEEILPYLFQLKKFIKYNLEHVKSFENKYSMRIYEWLLKELTQKKTHKANI
EISLDEFKFMLMLENNYHEFKRLNQWVLKPISKDLNTYSNMKLVVDKRGRPTDTLIFQV
ELDRQMDLVTELENNQIKMNGDKIPTTITSDSYLHNGLRKTLHDALTAKIQLTSFEAKF
LSDMQSKYDLNGSFSWLTQKQRTTLENILAKYGRI"
CDS 6677..7759
/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"
CDS 8320..9381
/codon_start=1
/gene="recA"
/product="DNA repair protein from E. coli"
/label=RecA
/translation="MAIDENKQKALAAALGQIEKQFGKGSIMRLGEDRSMDVETISTGS
LSLDIALGAGGLPMGRIVEIYGPESSGKTTLTLQVIAAAQREGKTCAFIDAEHALDPIY
ARKLGVDIDNLLCSQPDTGEQALEICDALARSGAVDVIVVDSVAALTPKAEIEGEIGDS
HMGLAARMMSQAMRKLAGNLKQSNTLLIFINQIRMKIGVMFGNPETTTGGNALKFYASV
RLDIRRIGAVKEGENVVGSETRVKVVKNKIAAPFKQAEFQILYGEGINFYGELVDLGVK
EKLIEKAGAWYSYKGEKIGQGKANATAWLKDNPETAKEIEKKVRELLLSNPNSTPDFSV
DDSEGVAETNEDF"
promoter 9507..9537
/label=lac UV5 promoter
/note="E. coli lac promoter with an ""up"" mutation"
protein_bind 9545..9561
/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 9595..10011
/codon_start=1
/gene="gam"
/product="inhibitor of the host RecBCD nuclease in the
lambda Red system"
/label=Gam
/note="protects the double-stranded DNA substrate for
recombination"
/translation="MDINTETEIKQKHSLTPFPVFLISPAFRGRYFHSYFRSSAMNAYY
IQDRLEAQSWARHYQQLAREEKEAELADDMEKGLPQHLFESLCIDHLQRHGASKKSITR
AFDDDVEFQERMAEHIRYMVETIAHHQVDIDSEV"
CDS join(10017..10798,1..4)
/codon_start=1
/gene="bet"
/product="single-stranded DNA binding recombinase in the
lambda Red system"
/label=Beta
/note="mediates pairing of a single-stranded DNA with a
complementary target"
/translation="MSTALATLAGKLAERVGMDSVDPQELITTLRQTAFKGDASDAQFI
ALLIVANQYGLNPWTKEIYAFPDKQNGIVPVVGVDGWSRIINENQQFDGMDFEQDNESC
TCRIYRKDRNHPICVTEWMDECRREPFKTREGREITGPWQSHPKRMLRHKAMIQCARLA
FGFAGIYDKDEAERIVENTAYTAERQPERDITPVNDETMQEINTLLIALDKTWDDDLLP
LCSQIFRRDIRASSELTQAEAVKALGFLKQKAAEQKVAA"