Price Information
Cat No. | Plasmid Name | Availability | Add to cart |
---|---|---|---|
V012814 | pGEM-HE | In stock, instant shipping |
Buy one, get one free! |
Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.
Basic Vector Information
Xenopus oocyte expression vector. It contains a 3'-UTR of the major beta-globin gene of Xenopus laevis. The pGEM-HE is a derivative of pGEM3Z vector.
- Vector Name:
- pGEM-HE
- Antibiotic Resistance:
- Ampicillin
- Length:
- 3047 bp
- Type:
- Protein Expression plasmid
- Replication origin:
- ori
- Selection Marker:
- Ampicillin, 100 μg/mL
- Copy Number:
- High copy number
- Promoter:
- T7
- Growth Strain(s):
- DH5alpha
- Growth Temperature:
- 37℃
pGEM-HE 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
- Loewen SK, Yao SY, Slugoski MD, Mohabir NN, Turner RJ, Mackey JR, Weiner JH, Gallagher MP, Henderson PJ, Baldwin SA, Cass CE, Young JD. Transport of physiological nucleosides and anti-viral and anti-neoplastic nucleoside drugs by recombinant Escherichia coli nucleoside-H(+) cotransporter (NupC) produced in Xenopus laevis oocytes. Mol Membr Biol. 2004 Jan-Feb;21(1):1-10.
pGEM-HE vector Sequence
LOCUS pGEM-HE. 3047 bp DNA circular SYN 03-AUG-2023 DEFINITION synthetic circular DNA. ACCESSION . VERSION . KEYWORDS pGEM-HE SOURCE synthetic DNA construct ORGANISM synthetic DNA construct REFERENCE 1 (bases 1 to 3047) TITLE Direct Submission FEATURES Location/Qualifiers source 1..3047 /mol_type="other DNA" /organism="synthetic DNA construct" primer_bind 46..62 /label=M13 fwd /note="common sequencing primer, one of multiple similar variants" promoter 69..87 /label=T7 promoter /note="promoter for bacteriophage T7 RNA polymerase" 5'UTR 119..161 /label=Xenopus globin 5'-UTR /note="translational enhancer from the 5'-UTR of the major beta-globin gene of Xenopus laevis" 3'UTR 220..345 /label=Xenopus globin 3'-UTR /note="3'-UTR of the major beta-globin gene of Xenopus laevis" promoter complement(457..475) /label=SP6 promoter /note="promoter for bacteriophage SP6 RNA polymerase" primer_bind complement(493..509) /label=M13 rev /note="common sequencing primer, one of multiple similar variants" protein_bind complement(517..533) /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(541..571) /label=lac promoter /note="promoter for the E. coli lac operon" protein_bind complement(586..607) /label=CAP binding site /note="CAP binding activates transcription in the presence of cAMP." rep_origin complement(895..1483) /direction=LEFT /label=ori /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of replication" CDS complement(1657..2514) /label=AmpR /note="beta-lactamase" promoter complement(2515..2619) /label=AmpR promoter