Basic Vector Information
- Vector Name:
- pET-21d
- Antibiotic Resistance:
- Ampicillin
- Length:
- 5436 bp
- Type:
- Protein expression
- Replication origin:
- ori
- Host:
- E. coli
- Copy Number:
- Low
- Promoter:
- T7
- Growth Strain(s):
- DH5a
- Growth Temperature:
- 37℃
pET-21d vector Vector Map
Plasmid Resuspension 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 ℃.
pET-21d vector Sequence
LOCUS 62056_9530 5436 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 5436)
AUTHORS .
TITLE Direct Submission
FEATURES Location/Qualifiers
source 1..5436
/mol_type="other DNA"
/organism="synthetic DNA construct"
promoter 209..227
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
protein_bind 228..252
/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 267..289
/label=RBS
/note="efficient ribosome binding site from bacteriophage
T7 gene 10 (Olins and Rangwala, 1989)"
CDS 296..328
/codon_start=1
/label=T7 tag (gene 10 leader)
/note="leader peptide from bacteriophage T7 gene 10"
/translation="MASMTGGQQMG"
CDS 376..393
/codon_start=1
/label=6xHis
/note="6xHis affinity tag"
/translation="HHHHHH"
terminator 460..507
/label=T7 terminator
/note="transcription terminator for bacteriophage T7 RNA
polymerase"
rep_origin 544..999
/label=f1 ori
/note="f1 bacteriophage origin of replication; arrow
indicates direction of (+) strand synthesis"
promoter 1025..1129
/label=AmpR promoter
CDS 1130..1987
/codon_start=1
/label=AmpR
/note="beta-lactamase"
/translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVEYS
PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
EPELNEAIPNDERDTTMPAAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
LIKHW"
rep_origin 2161..2749
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
misc_feature complement(2935..3074)
/label=bom
/note="basis of mobility region from pBR322"
CDS complement(3179..3367)
/codon_start=1
/label=rop
/note="Rop protein, which maintains plasmids at low copy
number"
/translation="VTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
DELYRSCLARFGDDGENL"
protein_bind complement(4142..4163)
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
CDS complement(4179..5258)
/codon_start=1
/label=lacI
/note="lac repressor"
/translation="VKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAEL
NYIPNRVAQQLAGKQSLLIGVATSSLALHAPSQIVAAIKSRADQLGASVVVSMVERSGV
EACKAAVHNLLAQRVSGLIINYPLDDQDAIAVEAACTNVPALFLDVSDQTPINSIIFSH
EDGTRLGVEHLVALGHQQIALLAGPLSSVSARLRLAGWHKYLTRNQIQPIAEREGDWSA
MSGFQQTMQMLNEGIVPTAMLVANDQMALGAMRAITESGLRVGADISVVGYDDTEDSSC
YIPPLTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNTQTASPR
ALADSLMQLARQVSRLESGQ"
promoter complement(5259..5336)
/label=lacI promoter
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