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pXMJ19 vector (V013071)

Price Information

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V013071 pXMJ19 In stock, instant shipping

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

Basic Vector Information

pXMJ19 is a plasmid that functions as a shuttle vector between Corynebacterium glutamiens and Escherichia coli. This biotechnological tool is tailored for growth in the DH5α strain and is cultured in LB medium at a temperature of 37 degrees Celsius.

Vector Name:
pXMJ19
Antibiotic Resistance:
Chloramphenicol
Length:
6601 bp
Type:
Protein expression
Replication origin:
ori
Host:
Corynebacterium glutamicum
Promoter:
Tac
Growth Strain(s):
DH10B
Growth Temperature:
37℃

pXMJ19 vector Map

Copy Sequence View Map
pXMJ196601 bp3006009001200150018002100240027003000330036003900420045004800510054005700600063006600MCSrrnB T1 terminatorrrnB T2 terminatorAmpR promoteroriCmRlacIq promotertac promoterlac operator

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

  • Lu N, Zhang C, Zhang W, Xu H, Li Y, Wei M, Meng J, Meng Y, Wang J, Chen N. A Myo-Inositol-Inducible Expression System for Corynebacterium glutamicum and Its Application. Front Bioeng Biotechnol. 2021 Nov 15;9:746322. doi: 10.3389/fbioe.2021.746322. PMID: 34869258; PMCID: PMC8634428.

pXMJ19 vector Sequence

LOCUS       62056_22845        6601 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 6601)
  AUTHORS   .
  TITLE     Direct Submission
FEATURES             Location/Qualifiers
     source          1..6601
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     misc_feature    complement(5..61)
                     /label=MCS
                     /note="pUC18/19 multiple cloning site"
     terminator      269..355
                     /label=rrnB T1 terminator
                     /note="transcription terminator T1 from the E. coli rrnB
                     gene"
     terminator      447..474
                     /label=rrnB T2 terminator
                     /note="transcription terminator T2 from the E. coli rrnB
                     gene"
     promoter        493..584
                     /label=AmpR promoter
     rep_origin      complement(971..1559)
                     /direction=LEFT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     CDS             complement(4413..5069)
                     /codon_start=1
                     /label=CmR
                     /note="chloramphenicol acetyltransferase"
                     /translation="MEKKITGYTTVDISQWHRKEHFEAFQSVAQCTYNQTVQLDITAFL
                     KTVKKNKHKFYPAFIHILARLMNAHPEFRMAMKDGELVIWDSVHPCYTVFHEQTETFSS
                     LWSEYHDDFRQFLHIYSQDVACYGENLAYFPKGFIENMFFVSANPWVSFTSFDLNVANM
                     DNFFAPVFTMGKYYTQGDKVLMPLAIQVHHAVCDGFHVGRMLNELQQYCDEWQGGA"
     promoter        complement(6221..6298)
                     /label=lacIq promoter
                     /note="In the lacIq allele, a single base change in the
                     promoter boosts expression of the lacI gene about 10-fold."
     promoter        6528..6556
                     /label=tac promoter
                     /note="strong E. coli promoter; hybrid between the trp and
                     lac UV5 promoters"
     protein_bind    6564..6580
                     /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)."