pK19mobsacB vector (V005261)

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

Basic Vector Information

The pK19mobsacB is a Corynebacterium glutamicum gene Knockout vector.

Vector Name:
pK19mobsacB
Antibiotic Resistance:
Kanamycin
Length:
5719 bp
Type:
Function E.coli Editing plasmids
Replication origin:
ori
Source/Author:
Okamoto S, Niki H.
Promoter:
sacB
Growth Strain(s):
JM109
Growth Temperature:
37℃

pK19mobsacB vector Map

pK19mobsacB5719 bp60012001800240030003600420048005400NeoR/KanRsacB promoterSacBoriTcat promotercat promoteroriCAP binding sitelac promoterlac operatorM13 revMCSM13 fwd

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

  • Schäfer A, Tauch A, Jäger W, Kalinowski J, Thierbach G, Pühler A. Small mobilizable multi-purpose cloning vectors derived from the Escherichia coli plasmids pK18 and pK19: selection of defined deletions in the chromosome of Corynebacterium glutamicum. Gene. 1994 Jul 22;145(1):69-73.

pK19mobsacB vector Sequence

LOCUS       40924_26496        5719 bp DNA     circular SYN 18-DEC-2018
DEFINITION  Cloning vector pK19mobsacB DNA, complete sequence.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5719)
  AUTHORS   Okamoto S, Niki H.
  TITLE     NBRP cloning vector collection sequence project
  JOURNAL   Unpublished
REFERENCE   2  (bases 1 to 5719)
  AUTHORS   Okamoto S, Niki H.
  TITLE     Direct Submission
  JOURNAL   Submitted (07-APR-2017) Contact:Sho Okamoto National Institute of 
            Genetics, Microbial Genetics Laboratory; 1111 Yata, Mishima, 
            Shizuoka 411-8540, Japan URL 
            :https://www.nig.ac.jp/labs/MicroGen/index.html
REFERENCE   3  (bases 1 to 5719)
  TITLE     Direct Submission
REFERENCE   4  (bases 1 to 5719)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"; journalName: 
            "Unpublished"
COMMENT     SGRef: number: 2; type: "Journal Article"; journalName: "Submitted 
            (07-APR-2017) Contact:Sho Okamoto National Institute of Genetics, 
            Microbial Genetics Laboratory; 1111 Yata, Mishima, Shizuoka 
            411-8540, Japan URL :https://www.nig.ac.jp/labs/MicroGen/index.html"
COMMENT     SGRef: number: 3; type: "Journal Article"
FEATURES             Location/Qualifiers
     source          1..5719
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     CDS             346..1137
                     /codon_start=1
                     /label=NeoR/KanR
                     /note="aminoglycoside phosphotransferase"
                     /translation="MIEQDGLHAGSPAAWVERLFGYDWAQQTIGCSDAAVFRLSAQGRP
                     VLFVKTDLSGALNELQDEAARLSWLATTGVPCAAVLDVVTEAGRDWLLLGEVPGQDLLS
                     SHLAPAEKVSIMADAMRRLHTLDPATCPFDHQAKHRIERARTRMEAGLVDQDDLDEEHQ
                     GLAPAELFARLKARMPDGEDLVVTHGDACLPNIMVENGRFSGFIDCGRLGVADRYQDIA
                     LATRDIAEELGGEWADRFLVLYGIAAPDSQRIAFYRLLDEFF"
     promoter        1186..1631
                     /label=sacB promoter
                     /note="sacB promoter and control region"
     CDS             1632..3050
                     /codon_start=1
                     /label=SacB
                     /note="secreted levansucrase that renders bacterial growth 
                     sensitive to sucrose"
                     /translation="MNIKKFAKQATVLTFTTALLAGGATQAFAKETNQKPYKETYGISH
                     ITRHDMLQIPEQQKNEKYQVSEFDSSTIKNISSAKGLDVWDSWPLQNADGTVANYHGYH
                     IVFALAGDPKNADDTSIYMFYQKVGETSIDSWKNAGRVFKDSDKFDANDSILKDQTQEW
                     SGSATFTSDGKIRLFYTDFSGKHYGKQTLTTAQVNVSASDSSLNINGVEDYKSIFDGDG
                     KTYQNVQQFIDEGNYSSGDNHTLRDPHYVEDKGHKYLVFEANTGTEDGYQGEESLFNKA
                     YYGKSTSFFRQESQKLLQSDKKRTAELANGALGMIELNDDYTLKKVMKPLIASNTVTDE
                     IERANVFKMNGKWYLFTDSRGSKMTIDGITSNDIYMLGYVSNSLTGPYKPLNKTGLVLK
                     MDLDPNDVTFTYSHFAVPQAKGNNVVITSYMTNRGFYADKQSTFAPSFLLNIKGKKTSV
                     VKDSILEQGQLTVNK"
     oriT            complement(3407..3516)
                     /direction=LEFT
                     /label=oriT
                     /note="incP origin of transfer"
     promoter        complement(3751..3841)
                     /label=cat promoter
                     /note="promoter of the E. coli cat gene encoding
                     chloramphenicol acetyltransferase"
     promoter        complement(4035..4125)
                     /label=cat promoter
                     /note="promoter of the E. coli cat gene encoding
                     chloramphenicol acetyltransferase"
     rep_origin      4485..5073
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     protein_bind    5361..5382
                     /label=CAP binding site
                     /note="CAP binding activates transcription in the presence
                     of cAMP."
     promoter        5397..5427
                     /label=lac promoter
                     /note="promoter for the E. coli lac operon"
     protein_bind    5435..5451
                     /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)."
     primer_bind     5459..5475
                     /label=M13 rev
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     misc_feature    complement(5487..5543)
                     /label=MCS
                     /note="pUC18/19 multiple cloning site"
     primer_bind     complement(5544..5560)
                     /label=M13 fwd
                     /note="common sequencing primer, one of multiple similar 
                     variants"