Price Information
| Cat No. | Plasmid Name | Availability | Buy one, get one free! (?) |
|---|---|---|---|
| V013269 | pSNAP-tag(T7)2-His | In stock, instant shipping |
Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.
Basic Vector Information
Expression of protein of interest with SNAP-Tag in bacterial cells
- Vector Name:
- pSNAP-tag(T7)2-His
- Antibiotic Resistance:
- Ampicillin
- Length:
- 6324 bp
- Replication origin:
- ori
- Host:
- E. coli
- Growth Strain(s):
- DH10B
- Growth Temperature:
- 37℃
pSNAP-tag(T7)2-His 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.
pSNAP-tag(T7)2-His vector Sequence
LOCUS Exported 6324 bp DNA circular SYN 04-SEP-2025
DEFINITION synthetic circular DNA.
ACCESSION .
VERSION .
KEYWORDS .
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 6324)
AUTHORS .
TITLE Direct Submission
FEATURES Location/Qualifiers
source 1..6324
/mol_type="other DNA"
/organism="synthetic DNA construct"
promoter 35..139
/label=AmpR promoter
CDS 140..1000
/codon_start=1
/gene="bla"
/product="beta-lactamase"
/label=AmpR
/note="confers resistance to ampicillin, carbenicillin, and
related antibiotics"
/translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRVDAGQEQLGRRIHYSQNDLVEYS
PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
EPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
LIKHW"
rep_origin complement(1042..1555)
/direction=LEFT
/label=M13 ori
/note="M13 bacteriophage origin of replication; arrow
indicates direction of (+) strand synthesis"
rep_origin 1666..2254
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
CDS complement(2623..2814)
/codon_start=1
/gene="rop"
/product="Rop protein, which maintains plasmids at low copy
number"
/label=rop
/translation="MTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
DELYRSCLARFGDDGENL"
protein_bind complement(3337..3358)
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
CDS complement(3371..4453)
/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"
promoter complement(4454..4531)
/label=lacI promoter
terminator 4684..4770
/gene="Escherichia coli rrnB"
/label=rrnB T1 terminator
/note="transcription terminator T1 from the E. coli rrnB
gene"
terminator 4867..4953
/gene="Escherichia coli rrnB"
/label=rrnB T1 terminator
/note="transcription terminator T1 from the E. coli rrnB
gene"
terminator 5050..5136
/gene="Escherichia coli rrnB"
/label=rrnB T1 terminator
/note="transcription terminator T1 from the E. coli rrnB
gene"
terminator 5233..5319
/gene="Escherichia coli rrnB"
/label=rrnB T1 terminator
/note="transcription terminator T1 from the E. coli rrnB
gene"
terminator complement(5236..5279)
/label=rrnB T1 terminator
/note="transcription terminator T1 from the E. coli rrnB
gene"
promoter 5454..5472
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
protein_bind 5473..5497
/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)."
RBS 5512..5534
/label=RBS
/note="efficient ribosome binding site from bacteriophage
T7 gene 10 (Olins and Rangwala, 1989)"
CDS 5584..6129
/codon_start=1
/label=SNAP-tag(R)
/note="human O6-alkylguanine-DNA-alkyltransferase variant
that forms covalent bonds with benzylguanine derivatives"
/translation="MDKDCEMKRTTLDSPLGKLELSGCEQGLHEIKLLGKGTSAADAVE
VPAPAAVLGGPEPLMQATAWLNAYFHQPEAIEEFPVPALHHPVFQQESFTRQVLWKLLK
VVKFGEVISYQQLAALAGNPAATAAVKTALSGNPVPILIPCHRVVSSSGAVGGYEGGLA
VKEWLLAHEGHRLGKPGLG"
CDS 6130..6147
/codon_start=1
/label=6xHis
/note="6xHis affinity tag"
/translation="HHHHHH"
terminator 6252..6299
/label=T7 terminator
/note="transcription terminator for bacteriophage T7 RNA
polymerase"