pET- 28a


  • Model: PVT0072
  • 50 Units in Stock
Ask a question

Add to Cart:


PVT0072   2ug


pET-28a Informaiton

Use:pET Plasmid

Alias: pET28a, pET-28a+

Promoter: T7/lac Promoter

Replicon: pBR322 ori

Terminator: T7 Terminator

Plasmid classification: large intestine plasmid; large intestine expression plasmid; pET series plasmid.

Plasmid size: 5369bp

Plasmid tagging: N-6 * His, N-Thrombin, N-T7, C-6 * His

Prokaryotic resistance: kanamycin Kan (50 g/ml)

Clone strain: Escherichia coli DH5 alpha

Culture conditions: 37 C, aerobic, LB

Expression vector: Escherichia coli BL21 (DE3)

Culture conditions: 37 C, aerobic, LB

Induction: IPTG or lactose and its analogues.

5'sequencing primers: T7 (TAATACGACTCACTATAGGG)

3'sequencing primers: T7-ter (TGCTAGTTATTGCTCAGCGG)


pET-28a Description

pET-28a is a prokaryotic expression vector. The C-terminal contains a 6*His tag and the N-terminal contains a 6*His tag, a thrombin digestion site and a T7 tag. The plasmid contains several commonly used restriction sites to facilitate cloning of different genes. The expression was induced by T7 RNA polymerase from host cells. The target gene was cloned into plasmid vector and controlled by strong phage transcription and translation signals. The single polyclonal site of the pET28a vector is seen above the circular plasmid map. Note: The vector sequence is encoded according to the coding rules of the pBR322 plasmid, so the T7 protein expression region is reversed on the plasmid map. The cloning and expression regions initiated by T7 RNA polymerase were also labelled in plasmid profiles. The F1 replicon of the plasmid is directed, so the viral particles containing the protein coding sequence can be produced by the T7 phage polymerase, and the protein expression can be initiated. The protein expression will be terminated by the T7 terminator sequence. The pET system is the most powerful system ever used to express recombinant protein in E. coli. It is also the most widely used system in prokaryotic expression. The plasmids can easily reduce protein expression by decreasing the concentration of inducers. Under non inducible conditions, the target gene can be completely silenced without transcribing.


pET-28a Multiple cloning site




pET-28a Sequence

LOCUS       Exported                5369 bp ds-DNA     circular SYN 16-JUN-2017
DEFINITION  synthetic circular DNA.
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5369)
  TITLE     Direct Submission
  JOURNAL   Exported Wednesday, July 12, 2017 
FEATURES             Location/Qualifiers
     source          1..5369
                     /organism="synthetic DNA construct"
                     /mol_type="other DNA"
     rep_origin      12..467
                     /note="f1 ori"
                     /note="f1 bacteriophage origin of replication; arrow
                     indicates direction of (+) strand synthesis"
     CDS             complement(560..1375)
                     /product="aminoglycoside phosphotransferase"
                     /note="confers resistance to kanamycin in bacteria or G418
                     (Geneticin(R)) in eukaryotes"
     rep_origin      1497..2085
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
     misc_feature    2271..2413
                     /note="basis of mobility region from pBR322"
     CDS             complement(2515..2706)
                     /product="Rop protein, which maintains plasmids at low copy
     CDS             complement(3515..4597)
                     /product="lac repressor"
                     /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        4598..4675
                     /note="lacI prom"
     promoter        4984..5002
                     /note="T7 prom"
                     /note="promoter for bacteriophage T7 RNA polymerase"
     protein_bind    5003..5027
                     /bound_moiety="lac repressor encoded by 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)."
     RBS             5042..5064
                     /note="efficient ribosome binding site from bacteriophage
                     T7 gene 10 (Olins and Rangwala, 1989)"
     CDS             5083..5100
                     /product="6xHis affinity tag"
     CDS             5110..5127
                     /product="thrombin recognition and cleavage site"
     CDS             5131..5163
                     /product="leader peptide from bacteriophage T7 gene 10"
                     /note="T7 tag"
                     /note="promotes efficient translation in E. coli"
     misc_feature    5167..5212
     CDS             5213..5230
                     /product="6xHis affinity tag"
     terminator      5297..5344
                     /note="T7 term"
                     /note="transcription terminator for bacteriophage T7 RNA
        1 tggcgaatgg gacgcgccct gtagcggcgc attaagcgcg gcgggtgtgg tggttacgcg
       61 cagcgtgacc gctacacttg ccagcgccct agcgcccgct cctttcgctt tcttcccttc
      121 ctttctcgcc acgttcgccg gctttccccg tcaagctcta aatcgggggc tccctttagg
      181 gttccgattt agtgctttac ggcacctcga ccccaaaaaa cttgattagg gtgatggttc
      241 acgtagtggg ccatcgccct gatagacggt ttttcgccct ttgacgttgg agtccacgtt
      301 ctttaatagt ggactcttgt tccaaactgg aacaacactc aaccctatct cggtctattc
      361 ttttgattta taagggattt tgccgatttc ggcctattgg ttaaaaaatg agctgattta
      421 acaaaaattt aacgcgaatt ttaacaaaat attaacgttt acaatttcag gtggcacttt
      481 tcggggaaat gtgcgcggaa cccctatttg tttatttttc taaatacatt caaatatgta
      541 tccgctcatg aattaattct tagaaaaact catcgagcat caaatgaaac tgcaatttat
      601 tcatatcagg attatcaata ccatattttt gaaaaagccg tttctgtaat gaaggagaaa
      661 actcaccgag gcagttccat aggatggcaa gatcctggta tcggtctgcg attccgactc
      721 gtccaacatc aatacaacct attaatttcc cctcgtcaaa aataaggtta tcaagtgaga
      781 aatcaccatg agtgacgact gaatccggtg agaatggcaa aagtttatgc atttctttcc
      841 agacttgttc aacaggccag ccattacgct cgtcatcaaa atcactcgca tcaaccaaac
      901 cgttattcat tcgtgattgc gcctgagcga gacgaaatac gcgatcgctg ttaaaaggac
      961 aattacaaac aggaatcgaa tgcaaccggc gcaggaacac tgccagcgca tcaacaatat
     1021 tttcacctga atcaggatat tcttctaata cctggaatgc tgttttcccg gggatcgcag
     1081 tggtgagtaa ccatgcatca tcaggagtac ggataaaatg cttgatggtc ggaagaggca
     1141 taaattccgt cagccagttt agtctgacca tctcatctgt aacatcattg gcaacgctac
     1201 ctttgccatg tttcagaaac aactctggcg catcgggctt cccatacaat cgatagattg
     1261 tcgcacctga ttgcccgaca ttatcgcgag cccatttata cccatataaa tcagcatcca
     1321 tgttggaatt taatcgcggc ctagagcaag acgtttcccg ttgaatatgg ctcataacac
     1381 cccttgtatt actgtttatg taagcagaca gttttattgt tcatgaccaa aatcccttaa
     1441 cgtgagtttt cgttccactg agcgtcagac cccgtagaaa agatcaaagg atcttcttga
     1501 gatccttttt ttctgcgcgt aatctgctgc ttgcaaacaa aaaaaccacc gctaccagcg
     1561 gtggtttgtt tgccggatca agagctacca actctttttc cgaaggtaac tggcttcagc
     1621 agagcgcaga taccaaatac tgtccttcta gtgtagccgt agttaggcca ccacttcaag
     1681 aactctgtag caccgcctac atacctcgct ctgctaatcc tgttaccagt ggctgctgcc
     1741 agtggcgata agtcgtgtct taccgggttg gactcaagac gatagttacc ggataaggcg
     1801 cagcggtcgg gctgaacggg gggttcgtgc acacagccca gcttggagcg aacgacctac
     1861 accgaactga gatacctaca gcgtgagcta tgagaaagcg ccacgcttcc cgaagggaga
     1921 aaggcggaca ggtatccggt aagcggcagg gtcggaacag gagagcgcac gagggagctt
     1981 ccagggggaa acgcctggta tctttatagt cctgtcgggt ttcgccacct ctgacttgag
     2041 cgtcgatttt tgtgatgctc gtcagggggg cggagcctat ggaaaaacgc cagcaacgcg
     2101 gcctttttac ggttcctggc cttttgctgg ccttttgctc acatgttctt tcctgcgtta
     2161 tcccctgatt ctgtggataa ccgtattacc gcctttgagt gagctgatac cgctcgccgc
     2221 agccgaacga ccgagcgcag cgagtcagtg agcgaggaag cggaagagcg cctgatgcgg
     2281 tattttctcc ttacgcatct gtgcggtatt tcacaccgca tatatggtgc actctcagta
     2341 caatctgctc tgatgccgca tagttaagcc agtatacact ccgctatcgc tacgtgactg
     2401 ggtcatggct gcgccccgac acccgccaac acccgctgac gcgccctgac gggcttgtct
     2461 gctcccggca tccgcttaca gacaagctgt gaccgtctcc gggagctgca tgtgtcagag
     2521 gttttcaccg tcatcaccga aacgcgcgag gcagctgcgg taaagctcat cagcgtggtc
     2581 gtgaagcgat tcacagatgt ctgcctgttc atccgcgtcc agctcgttga gtttctccag
     2641 aagcgttaat gtctggcttc tgataaagcg ggccatgtta agggcggttt tttcctgttt
     2701 ggtcactgat gcctccgtgt aagggggatt tctgttcatg ggggtaatga taccgatgaa
     2761 acgagagagg atgctcacga tacgggttac tgatgatgaa catgcccggt tactggaacg
     2821 ttgtgagggt aaacaactgg cggtatggat gcggcgggac cagagaaaaa tcactcaggg
     2881 tcaatgccag cgcttcgtta atacagatgt aggtgttcca cagggtagcc agcagcatcc
     2941 tgcgatgcag atccggaaca taatggtgca gggcgctgac ttccgcgttt ccagacttta
     3001 cgaaacacgg aaaccgaaga ccattcatgt tgttgctcag gtcgcagacg ttttgcagca
     3061 gcagtcgctt cacgttcgct cgcgtatcgg tgattcattc tgctaaccag taaggcaacc
     3121 ccgccagcct agccgggtcc tcaacgacag gagcacgatc atgcgcaccc gtggggccgc
     3181 catgccggcg ataatggcct gcttctcgcc gaaacgtttg gtggcgggac cagtgacgaa
     3241 ggcttgagcg agggcgtgca agattccgaa taccgcaagc gacaggccga tcatcgtcgc
     3301 gctccagcga aagcggtcct cgccgaaaat gacccagagc gctgccggca cctgtcctac
     3361 gagttgcatg ataaagaaga cagtcataag tgcggcgacg atagtcatgc cccgcgccca
     3421 ccggaaggag ctgactgggt tgaaggctct caagggcatc ggtcgagatc ccggtgccta
     3481 atgagtgagc taacttacat taattgcgtt gcgctcactg cccgctttcc agtcgggaaa
     3541 cctgtcgtgc cagctgcatt aatgaatcgg ccaacgcgcg gggagaggcg gtttgcgtat
     3601 tgggcgccag ggtggttttt cttttcacca gtgagacggg caacagctga ttgcccttca
     3661 ccgcctggcc ctgagagagt tgcagcaagc ggtccacgct ggtttgcccc agcaggcgaa
     3721 aatcctgttt gatggtggtt aacggcggga tataacatga gctgtcttcg gtatcgtcgt
     3781 atcccactac cgagatatcc gcaccaacgc gcagcccgga ctcggtaatg gcgcgcattg
     3841 cgcccagcgc catctgatcg ttggcaacca gcatcgcagt gggaacgatg ccctcattca
     3901 gcatttgcat ggtttgttga aaaccggaca tggcactcca gtcgccttcc cgttccgcta
     3961 tcggctgaat ttgattgcga gtgagatatt tatgccagcc agccagacgc agacgcgccg
     4021 agacagaact taatgggccc gctaacagcg cgatttgctg gtgacccaat gcgaccagat
     4081 gctccacgcc cagtcgcgta ccgtcttcat gggagaaaat aatactgttg atgggtgtct
     4141 ggtcagagac atcaagaaat aacgccggaa cattagtgca ggcagcttcc acagcaatgg
     4201 catcctggtc atccagcgga tagttaatga tcagcccact gacgcgttgc gcgagaagat
     4261 tgtgcaccgc cgctttacag gcttcgacgc cgcttcgttc taccatcgac accaccacgc
     4321 tggcacccag ttgatcggcg cgagatttaa tcgccgcgac aatttgcgac ggcgcgtgca
     4381 gggccagact ggaggtggca acgccaatca gcaacgactg tttgcccgcc agttgttgtg
     4441 ccacgcggtt gggaatgtaa ttcagctccg ccatcgccgc ttccactttt tcccgcgttt
     4501 tcgcagaaac gtggctggcc tggttcacca cgcgggaaac ggtctgataa gagacaccgg
     4561 catactctgc gacatcgtat aacgttactg gtttcacatt caccaccctg aattgactct
     4621 cttccgggcg ctatcatgcc ataccgcgaa aggttttgcg ccattcgatg gtgtccggga
     4681 tctcgacgct ctcccttatg cgactcctgc attaggaagc agcccagtag taggttgagg
     4741 ccgttgagca ccgccgccgc aaggaatggt gcatgcaagg agatggcgcc caacagtccc
     4801 ccggccacgg ggcctgccac catacccacg ccgaaacaag cgctcatgag cccgaagtgg
     4861 cgagcccgat cttccccatc ggtgatgtcg gcgatatagg cgccagcaac cgcacctgtg
     4921 gcgccggtga tgccggccac gatgcgtccg gcgtagagga tcgagatctc gatcccgcga
     4981 aattaatacg actcactata ggggaattgt gagcggataa caattcccct ctagaaataa
     5041 ttttgtttaa ctttaagaag gagatatacc atgggcagca gccatcatca tcatcatcac
     5101 agcagcggcc tggtgccgcg cggcagccat atggctagca tgactggtgg acagcaaatg
     5161 ggtcgcggat ccgaattcga gctccgtcga caagcttgcg gccgcactcg agcaccacca
     5221 ccaccaccac tgagatccgg ctgctaacaa agcccgaaag gaagctgagt tggctgctgc
     5281 caccgctgag caataactag cataacccct tggggcctct aaacgggtct tgaggggttt
     5341 tttgctgaaa ggaggaacta tatccggat

Product is for research use only!

Search name

pET-28a,Plasmid pET-28a,pET-28a vector

No customer comments for the moment.

Add A Comment

Related Products


No products

Total $0.00

Prices don't include postage.