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pKOV vector (V012926)

Price Information

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V012926 pKOV In stock, 1 week for quality controls

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Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.

Basic Vector Information

Vector Name:
pKOV
Antibiotic Resistance:
Chloramphenicol
Length:
8662 bp
Type:
Gene knockout
Replication origin:
pSC101 ori
Host:
E. coli
Promoter:
sacB
Growth Strain(s):
DH5a
Growth Temperature:
30℃

pKOV vector Map

Copy Sequence View Map
pKOV8662 bp4008001200160020002400280032003600400044004800520056006000640068007200760080008400cat promoterCmRbacterial terminatorf1 orisacB promoterSacBRep101(Ts)pSC101 ori

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.

pKOV vector Sequence

LOCUS       62056_13585        8662 bp DNA     circular SYN 01-JAN-1980
DEFINITION  synthetic circular DNA.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 8662)
  AUTHORS   .
  TITLE     Direct Submission
FEATURES             Location/Qualifiers
     source          1..8662
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     promoter        118..220
                     /label=cat promoter
                     /note="promoter of the E. coli cat gene encoding
                     chloramphenicol acetyltransferase"
     CDS             221..877
                     /codon_start=1
                     /label=CmR
                     /note="chloramphenicol acetyltransferase"
                     /translation="MEKKITGYTTVDISQWHRKEHFEAFQSVAQCTYNQTVQLDITAFL
                     KTVKKNKHKFYPAFIHILARLMNAHPEFRMAMKDGELVIWDSVHPCYTVFHEQTETFSS
                     LWSEYHDDFRQFLHIYSQDVACYGENLAYFPKGFIENMFFVSANPWVSFTSFDLNVANM
                     DNFFAPVFTMGKYYTQGDKVLMPLAIQVHHAVCDGFHVGRMLNELQQYCDEWQGGA"
     terminator      complement(3075..3118)
                     /label=bacterial terminator
                     /note="putative bacterial transcription terminator"
     rep_origin      4110..4565
                     /label=f1 ori
                     /note="f1 bacteriophage origin of replication; arrow
                     indicates direction of (+) strand synthesis"
     promoter        4669..5114
                     /label=sacB promoter
                     /note="sacB promoter and control region"
     CDS             5115..6533
                     /codon_start=1
                     /label=SacB
                     /note="secreted levansucrase that renders bacterial growth 
                     sensitive to sucrose"
                     /translation="MNIKKFAKQATVLTFTTALLAGGATQAFAKETNQKPYKETYGISH
                     ITRHDMLQIPEQQKNEKYQVPEFDSSTIKNISSAKGLDVWDSWPLQNADGTVANYHGYH
                     IVFALAGDPKNADDTSIYMFYQKVGETSIDSWKNAGRVFKDSDKFDANDSILKDQTQEW
                     SGSATVTSDGKIRLFYTDFSGKHYGKQTLTTAQVNVSASDSSLNINGVEDYKSIFDGDG
                     KTYQNVQQFIDEGNYSSGDNHTLRDPHYVEDKGHKYLVFEANTGTEDGYQGEESLFNKA
                     YYGKSTSFFRQESQKLLQSDKKRTAELANGALGMIELNDDYTLKKVMKPLIASNTVTDE
                     IERANVFKMNGKWYLFTDSRGSKMTIDGITSNDIYMLGYVSNSLTGPYKPLNKTGLVLK
                     MDLDPNDVTFTYSHFAVPQAKGNNVVITSYMTNRGFYADKQSTFAPSFLLNIKGKKTSV
                     VKDSILEQGQLTVNK"
     CDS             complement(6932..7879)
                     /codon_start=1
                     /label=Rep101(Ts)
                     /note="temperature-sensitive version of the RepA protein
                     needed for replication with the pSC101 origin (Armstrong et
                     al., 1984)"
                     /translation="MSELVVFKANELAISRYDLTEHETKLILCCVALLNPTIENPTRKE
                     RTVSFTYNQYVQMMNISRENAYGVLAKATRELMTRTVEIRNPLVKGFEIFQWTNYAKFS
                     SEKLELVFSEEILPYLFQLKKFIKYNLEHVKSFENKYSMRIYEWLLKELTQKKTHKANI
                     EISLDEFKFMLMLENNYHEFKRLNQWVLKPISKDLNTYSNMKLVVDKRGRPTDTLIFQV
                     ELDRQMDLVTELENNQIKMNGDKIPTTITSDSYLRNGLRKTLHDALTAKIQLTSFEAKF
                     LSDMQSKHDLNGSFSWLTQKQRTTLENILAKYGRI"
     rep_origin      complement(7927..8149)
                     /direction=LEFT
                     /label=pSC101 ori
                     /note="low-copy replication origin that requires the Rep101
                     protein"