Basic Vector Information
The pET-46 Ek/LIC vector is prepared for rapid, directional cloning of PCR-amplified DNA for highlevel expression of polypeptides. Using specifically designed primers for amplification and the pET-46 Ek/LIC Cloning Kit (Cat. No. 71335-3), inserts can be efficiently cloned without the need for restriction digestion or ligation. Fusion proteins contain an N-terminal cleavable His•Tag sequence. Fusion to an optional C-terminal S•TagTM sequence can also be created for detection, purification and quantification of fusion proteins. Unique sites are shown on the circle map. Note that the sequence is numbered by the pBR322 convention, so the T7 expression region is reversed on the circle map. The f1 origin is oriented so that infection with helper phage will produce virions containing single stranded DNA that corresponds to the coding strand. Therefore, single stranded sequencing should be performed using the T7 Terminator Primer (Cat. No. 69337-3).
- Vector Name:
- pET-46 Ek/LIC
- Antibiotic Resistance:
- Ampicillin
- Length:
- 5200 bp
- Type:
- pET & Duet Vectors (Novagen)
- Replication origin:
- ori
- Source/Author:
- Novagen (EMD Millipore)
- Copy Number:
- High copy number
- Cloning Method:
- Enzyme digestion and ligation
- 3' Primer:
- T7t: 5'-TGCTAGTTATTGCTCAGCGG-3'
- Fusion Tag:
- N-His, N-EK, C-S
pET-46 Ek/LIC vector Map
pET-46 Ek/LIC vector Sequence
LOCUS pET-46_Ek_LIC. 5200 bp DNA circular SYN 01-JAN-1980
DEFINITION Bacterial vector for ligation-independent cloning (LIC) to express
6xHis-tagged proteins with an enterokinase site.
ACCESSION .
VERSION .
KEYWORDS pET-46 Ek_LIC
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 5200)
AUTHORS Novagen (EMD Millipore)
TITLE Direct Submission
REFERENCE 2 (bases 1 to 5200)
AUTHORS .
TITLE Direct Submission
COMMENT SGRef: number: 1; type: "Journal Article"
COMMENT For LIC, linearize with BseRI and treat with T4 DNA polymerase plus
dTTP.
FEATURES Location/Qualifiers
source 1..5200
/mol_type="other DNA"
/organism="synthetic DNA construct"
terminator complement(26..73)
/label=T7 terminator
/note="transcription terminator for bacteriophage T7 RNA
polymerase"
CDS complement(125..169)
/label=S-Tag
/note="affinity and epitope tag derived from pancreatic
ribonuclease A"
CDS complement(203..217)
/label=enterokinase site
/note="enterokinase recognition and cleavage site"
CDS complement(221..238)
/label=6xHis
/note="6xHis affinity tag"
CDS complement(242..244)
/codon_start=1
/product="start codon"
/label=start codon
/note="ATG"
/translation="M"
RBS complement(251..273)
/label=RBS
/note="efficient ribosome binding site from bacteriophage
T7 gene 10 (Olins and Rangwala, 1989)"
protein_bind complement(288..312)
/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(313..331)
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
promoter 644..721
/label=lacI promoter
CDS 722..1801
/label=lacI
/note="lac repressor"
protein_bind 1817..1838
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
CDS 2376..2564
/label=rop
/note="Rop protein, which maintains plasmids at low copy
number"
misc_feature 2669..2811
/label=bom
/note="basis of mobility region from pBR322"
rep_origin complement(2997..3585)
/direction=LEFT
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
promoter 3666..3758
/label=AmpR promoter
CDS 3759..4616
/label=AmpR
/note="beta-lactamase"
rep_origin complement(4734..5189)
/direction=LEFT
/label=f1 ori
/note="f1 bacteriophage origin of replication; arrow
indicates direction of (+) strand synthesis"
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