pHERD20T vector (V005568)

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Price Information

Cat No.	Plasmid Name	Availability	Add to cart
V005568	pHERD20T	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

The pHERD20T is a Escherichia-Pseudomonas shuttle vector. The shuttle vector pHERD20T containing an arabinose inducible promoter was used to construct the CRISPRi system.

Vector Name:: pHERD20T

Antibiotic Resistance:: Ampicillin

Length:: 5087 bp

Type:: Escherichia-Pseudomonas shuttle vector

Replication origin:: ori

Source/Author:: Qiu D, Damron FH, Mima T, Schweizer HP, Yu HD.

Promoter:: araBAD

Growth Strain(s):: Top10

Growth Temperature:: 37℃

pHERD20T vector Map

Copy Sequence View 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

Zhou D, Huang G, Xu G, et al. CRISPRi-Mediated Gene Suppression Reveals Putative Reverse Transcriptase Gene PA0715 to Be a Global Regulator of Pseudomonas aeruginosa [published correction appears in Infect Drug Resist. 2024 Jan 12;17:141-142]. Infect Drug Resist. 2022;15:7577-7599. Published 2022 Dec 22. doi:10.2147/IDR.S384980

pHERD20T vector Sequence

LOCUS       40924_24473        5087 bp DNA     circular SYN 18-DEC-2018
DEFINITION  Escherichia-Pseudomonas shuttle vector pHERD20T, complete sequence.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5087)
  AUTHORS   Qiu D, Damron FH, Mima T, Schweizer HP, Yu HD.
  TITLE     PBAD-based shuttle vectors for functional analysis of toxic and 
            highly regulated genes in Pseudomonas and Burkholderia spp. and 
            other bacteria
  JOURNAL   Appl. Environ. Microbiol. 74 (23), 7422-7426 (2008)
  PUBMED    18849445
REFERENCE   2  (bases 1 to 5087)
  AUTHORS   Qiu D, Yu HD.
  TITLE     Direct Submission
  JOURNAL   Submitted (31-MAR-2008) Biochemistry and Microbiology, Marshall 
            University Joan C. Edwards School of Medicine, 1 John Marshall 
            Drive, Huntington, WV 25755, USA
REFERENCE   3  (bases 1 to 5087)
  TITLE     Direct Submission
REFERENCE   4  (bases 1 to 5087)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"; journalName: "Appl. 
            Environ. Microbiol."; date: "2008"; volume: "74"; issue: "23"; 
            pages: "7422-7426"
COMMENT     SGRef: number: 2; type: "Journal Article"; journalName: "Submitted 
            (31-MAR-2008) Biochemistry and Microbiology, Marshall University 
            Joan C. Edwards School of Medicine, 1 John Marshall Drive, 
            Huntington, WV 25755, USA"
COMMENT     SGRef: number: 3; type: "Journal Article"
FEATURES             Location/Qualifiers
     source          1..5087
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     promoter        96..200
                     /label=AmpR promoter
     CDS             201..1058
                     /codon_start=1
                     /label=AmpR
                     /note="beta-lactamase"
                     /translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
                     ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVEYS
                     PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
                     EPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
                     LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
                     LIKHW"
     rep_origin      1232..1820
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     oriT            complement(1892..2000)
                     /direction=LEFT
                     /label=oriT
                     /note="incP origin of transfer"
     CDS             complement(2160..3035)
                     /codon_start=1
                     /label=araC
                     /note="L-arabinose regulatory protein"
                     /translation="MAEAQNDPLLPGYSFNAHLVAGLTPIEANGYLDFFIDRPLGMKGY
                     ILNLTIRGQGVVKNQGREFVCRPGDILLFPPGEIHHYGRHPEAREWYHQWVYFRPRAYW
                     HEWLNWPSIFANTGFFRPDEAHQPHFSDLFGQIINAGQGEGRYSELLAINLLEQLLLRR
                     MEAINESLHPPMDNRVREACQYISDHLADSNFDIASVAQHVCLSPSRLSHLFRQQLGIS
                     VLSWREDQRISQAKLLLSTTRMPIATVGRNVGFDDQLYFSRVFKKCTGASPSEFRAGCE
                     EKVNDVAVKLS"
     promoter        3062..3346
                     /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)"
     RBS             3373..3395
                     /label=RBS
                     /note="efficient ribosome binding site from bacteriophage
                     T7 gene 10 (Olins and Rangwala, 1989)"
     misc_feature    3421..3477
                     /label=MCS
                     /note="pUC18/19 multiple cloning site"
     primer_bind     complement(3481..3497)
                     /label=M13 fwd
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     CDS             complement(3661..4491)
                     /codon_start=1
                     /label=pRO1600 Rep
                     /note="replication protein for the broad-host-range plasmid
                     pRO1600 from Pseudomonas aeruginosa"
                     /translation="VASPPMVYKSNALVEAAYRLSVQEQRIVLACISQVKRSEPVTDEV
                     MYSVTAEDIATMAGVPIESSYNQLKEAALRLKRREVRLTQEPNGKGKRPSVMITGWVQT
                     IIYREGEGRVELRFTKDMLPYLTELTKQFTKYALADVAKMDSTHAIRLYELLMQWDSIG
                     QREIEIDQLRKWFQLEGRYPSIKDFKLRVLDPAVTQINEHSPLQVEWAQRKTGRKVTHL
                     LFSFGPKKPAKAVGKAPAKRKAGKISDAEIAKQARPGETWEAARARLTQMPLDLA"
     rep_origin      4505..4856
                     /label=pRO1600 oriV
                     /note="broad-host-range origin of replication from
                     Pseudomonas aeruginosa plasmid pRO1600; requires the 
                     pRO1600 Rep protein for replication (West et al., 1994)"