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pBAD/His B vector (V000734)

Price Information

Cat No. Plasmid Name Availability Add to cart
V000734 pBAD/His B In stock, 1 week for quality controls

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

Basic Vector Information

Vector Name:
pBAD/His B
Antibiotic Resistance:
Ampicillin
Length:
4092 bp
Type:
E. coli Expression Vectors
Replication origin:
ori
Copy Number:
High copy number
Promoter:
araBAD
Cloning Method:
Enzyme digestion and ligation
5' Primer:
pBAD-F: ATGCCATAGCATTTTTATCC
3' Primer:
pBAD-R: gatttaatctgtatcagg
Fusion Tag:
N-His, N-EK

pBAD/His B vector Vector Map

pBAD/His B4092 bp60012001800240030003600araBAD promoter6xHisT7 tag (gene 10 leader)Xpress(TM) tagrrnB T1 terminatorrrnB T2 terminatorAmpR promoterAmpRoribomaraC

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.

pBAD/His B vector Sequence

Copy Sequence

Download GeneBank File(.gb)

LOCUS       40924_5759        4092 bp DNA     circular SYN 13-JAN-2022
DEFINITION  synthetic circular DNA.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 4092)
  TITLE     Direct Submission
REFERENCE   2  (bases 1 to 4092)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"
FEATURES             Location/Qualifiers
     source          1..4092
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     promoter        1..285
                     /label=araBAD promoter
                     /note="promoter of the L-arabinose operon of E. coli; the
                     araC regulatory gene is transcribed in the opposite 
                     direction (Guzman et al., 1995)"
     CDS             331..348
                     /codon_start=1
                     /label=6xHis
                     /note="6xHis affinity tag"
                     /translation="HHHHHH"
     CDS             352..384
                     /codon_start=1
                     /label=T7 tag (gene 10 leader)
                     /note="leader peptide from bacteriophage T7 gene 10"
                     /translation="MASMTGGQQMG"
     CDS             388..411
                     /codon_start=1
                     /label=Xpress(TM) tag
                     /note="Xpress(TM) epitope tag, including an enterokinase 
                     recognition and cleavage site"
                     /translation="DLYDDDDK"
     terminator      663..749
                     /label=rrnB T1 terminator
                     /note="transcription terminator T1 from the E. coli rrnB
                     gene"
     terminator      841..868
                     /label=rrnB T2 terminator
                     /note="transcription terminator T2 from the E. coli rrnB
                     gene"
     promoter        887..978
                     /label=AmpR promoter
     CDS             979..1836
                     /codon_start=1
                     /label=AmpR
                     /note="beta-lactamase"
                     /translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
                     ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRVDAGQEQLGRRIHYSQNDLVEYS
                     PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
                     EPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
                     LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
                     LIKHW"
     rep_origin      2010..2598
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     misc_feature    complement(2784..2924)
                     /label=bom
                     /note="basis of mobility region from pBR322"
     CDS             complement(3191..4066)
                     /codon_start=1
                     /label=araC
                     /note="L-arabinose regulatory protein"
                     /translation="MAEAQNDPLLPGYSFNAHLVAGLTPIEANGYLDFFIDRPLGMKGY
                     ILNLTIRGQGVVKNQGREFVCRPGDILLFPPGEIHHYGRHPEAREWYHQWVYFRPRAYW
                     HEWLNWPSIFANTGFFRPDEAHQPHFSDLFGQIINAGQGEGRYSELLAINLLEQLLLRR
                     MEAINESLHPPMDNRVREACQYISDHLADSNFDIASVAQHVCLSPSRLSHLFRQQLGIS
                     VLSWREDQRISQAKLLLSTTRMPIATVGRNVGFDDQLYFSRVFKKCTGASPSEFRAGCE
                     EKVNDVAVKLS"