LOCUS       sequence-226710-        5014 bp    DNA     circular SYN 15-DEC-2025
DEFINITION  Allows cloning of gene of interest into bacterial expression vector 
            with PreScission Protease cleavable N-terminal GST tag, and a 
            retained N-terminal Strep-II tag..
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5014)
  TITLE     Bacterial expression plasmids for production of recombinant proteins
            with a PreScission Protease cleavable GST tag and additional small 
            affinity tags
  JOURNAL   Unpublished
REFERENCE   2  (bases 1 to 5014)
  AUTHORS   .
  TITLE     Direct Submission
  JOURNAL   Exported Dec 15, 2025 from SnapGene Server 8.0.1
            https://www.snapgene.com
COMMENT     SGRef: number: 1; type: "Journal Article"; journalName: 
            "Unpublished"
COMMENT     Sequence Label: pGEX6P1-N-Strep2
FEATURES             Location/Qualifiers
     source          1..5014
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     promoter        join(183..188,189..204,205..211)
                     /label=tac promoter
                     /note="strong E. coli promoter; hybrid between the trp and 
                     lac UV5 promoters"
     protein_bind    219..235
                     /label=lac operator
                     /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)."
     CDS             258..911
                     /codon_start=1
                     /product="glutathione S-transferase from Schistosoma 
                     japonicum"
                     /label=GST
                     /translation="MSPILGYWKIKGLVQPTRLLLEYLEEKYEEHLYERDEGDKWRNKK
                     FELGLEFPNLPYYIDGDVKLTQSMAIIRYIADKHNMLGGCPKERAEISMLEGAVLDIRY
                     GVSRIAYSKDFETLKVDFLSKLPEMLKMFEDRLCHKTYLNGDHVTHPDFMLYDALDVVL
                     YMDPMCLDAFPKLVCFKKRIEAIPQIDKYLKSSKYIAWPLQGWQATFGGGDHPPK"
     primer_bind     869..891
                     /label=pGEX 5'
                     /note="pGEX vectors, Glutathione-S-transferase, forward 
                     primer"
     CDS             918..941
                     /codon_start=1
                     /product="recognition and cleavage site for human 
                     rhinovirus 3C and PreScission proteases"
                     /label=HRV 3C site
                     /translation="LEVLFQGP"
     CDS             951..974
                     /codon_start=1
                     /product="peptide that binds Strep-Tactin(R), an engineered
                     form of streptavidin"
                     /label=Strep-Tag II
                     /translation="WSHPQFEK"
     primer_bind     complement(1064..1086)
                     /label=pGEX 3'
                     /note="pGEX vectors, reverse primer"
     primer_bind     complement(1231..1249)
                     /label=pBRforEco
                     /note="pBR322 vectors, upsteam of EcoRI site, forward 
                     primer"
     promoter        1317..1421
                     /gene="bla"
                     /label=AmpR promoter
     CDS             join(1422..1490,1491..2282)
                     /codon_start=1
                     /gene="bla"
                     /product="beta-lactamase"
                     /label=AmpR
                     /note="confers resistance to ampicillin, carbenicillin, and
                     related antibiotics"
                     /translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
                     ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRVDAGQEQLGRRIHYSQNDLVEYS
                     PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
                     EPELNEAIPNDERDTTMPAAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
                     LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
                     LIKHW"
     primer_bind     complement(1640..1659)
                     /label=Amp-R
                     /note="Ampicillin resistance gene, reverse primer"
     rep_origin      2453..3041
                     /direction=RIGHT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     primer_bind     2942..2961
                     /label=pBR322ori-F
                     /note="pBR322 origin, forward primer"
     primer_bind     3195..3212
                     /label=L4440
                     /note="L4440 vector, forward primer"
     promoter        3285..3362
                     /gene="lacI (mutant)"
                     /label=lacIq promoter
                     /note="In the lacIq allele, a single base change in the 
                     promoter boosts expression of the lacI gene about 10-fold."
     CDS             3363..4445
                     /codon_start=1
                     /gene="lacI"
                     /product="lac repressor"
                     /label=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)."
                     /translation="MKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAEL
                     NYIPNRVAQQLAGKQSLLIGVATSSLALHAPSQIVAAIKSRADQLGASVVVSMVERSGV
                     EACKAAVHNLLAQRVSGLIINYPLDDQDAIAVEAACTNVPALFLDVSDQTPINSIIFSH
                     EDGTRLGVEHLVALGHQQIALLAGPLSSVSARLRLAGWHKYLTRNQIQPIAEREGDWSA
                     MSGFQQTMQMLNEGIVPTAMLVANDQMALGAMRAITESGLRVGADISVVGYDDTEDSSC
                     YIPPSTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNTQTASPR
                     ALADSLMQLARQVSRLESGQ"
     primer_bind     complement(3382..3401)
                     /label=LacI-R
                     /note="LacI, reverse primer"
     protein_bind    4458..4479
                     /label=CAP binding site
                     /bound_moiety="E. coli catabolite activator protein"
                     /note="CAP binding activates transcription in the presence 
                     of cAMP."
     promoter        join(4494..4499,4500..4517,4518..4524)
                     /label=lac promoter
                     /note="promoter for the E. coli lac operon"
     protein_bind    4532..4548
                     /label=lac operator
                     /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)."
     primer_bind     4556..4572
                     /label=M13 rev
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     primer_bind     4556..4572
                     /label=M13 Reverse
                     /note="In lacZ gene. Also called M13-rev"
     CDS             join(4568..5014,1..81)
                     /codon_start=1
                     /gene="lacZ fragment"
                     /product="LacZ-alpha fragment of beta-galactosidase"
                     /label=lacZ-alpha
                     /translation="MTMITDSLAVVLQRRDWENPGVTQLNRLAAHPPFASWRNSEEART
                     DRPSQQLRSLNGEWRFAWFPAPEAVPESWLECDLPEADTVVVPSNWQMHGYDAPIYTNV
                     TYPITVNPPFVPTENPTGCYSLTFNVDESWLQEGQTRIIFDGVGITLSTARCTNASGVR
                     QPSEAVVWLCRS"
     primer_bind     complement(4588..4605)
                     /label=M13 Forward
                     /note="In lacZ gene. Also called M13-F20 or M13 (-21) 
                     Forward"
     primer_bind     complement(4588..4604)
                     /label=M13 fwd
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     primer_bind     complement(4597..4619)
                     /label=M13/pUC Forward
                     /note="In lacZ gene"
ORIGIN
        1 acgttatcga ctgcacggtg caccaatgct tctggcgtca ggcagccatc ggaagctgtg
       61 gtatggctgt gcaggtcgta aatcactgca taattcgtgt cgctcaaggc gcactcccgt
      121 tctggataat gttttttgcg ccgacatcat aacggttctg gcaaatattc tgaaatgagc
      181 tgttgacaat taatcatcgg ctcgtataat gtgtggaatt gtgagcggat aacaatttca
      241 cacaggaaac agtattcatg tcccctatac taggttattg gaaaattaag ggccttgtgc
      301 aacccactcg acttcttttg gaatatcttg aagaaaaata tgaagagcat ttgtatgagc
      361 gcgatgaagg tgataaatgg cgaaacaaaa agtttgaatt gggtttggag tttcccaatc
      421 ttccttatta tattgatggt gatgttaaat taacacagtc tatggccatc atacgttata
      481 tagctgacaa gcacaacatg ttgggtggtt gtccaaaaga gcgtgcagag atttcaatgc
      541 ttgaaggagc ggttttggat attagatacg gtgtttcgag aattgcatat agtaaagact
      601 ttgaaactct caaagttgat tttcttagca agctacctga aatgctgaaa atgttcgaag
      661 atcgtttatg tcataaaaca tatttaaatg gtgatcatgt aacccatcct gacttcatgt
      721 tgtatgacgc tcttgatgtt gttttataca tggacccaat gtgcctggat gcgttcccaa
      781 aattagtttg ttttaaaaaa cgtattgaag ctatcccaca aattgataag tacttgaaat
      841 ccagcaagta tatagcatgg cctttgcagg gctggcaagc cacgtttggt ggtggcgacc
      901 atcctccaaa atcggatctg gaagttctgt tccaggggcc cctgggatcc tggagccacc
      961 cgcagttcga aaagcgatcc ccggaattcc cgggtcgact cgagcggccg catcgtgact
     1021 gactgacgat ctgcctcgcg cgtttcggtg atgacggtga aaacctctga cacatgcagc
     1081 tcccggagac ggtcacagct tgtctgtaag cggatgccgg gagcagacaa gcccgtcagg
     1141 gcgcgtcagc gggtgttggc gggtgtcggg gcgcagccat gacccagtca cgtagcgata
     1201 gcggagtgta taattcttga agacgaaagg gcctcgtgat acgcctattt ttataggtta
     1261 atgtcatgat aataatggtt tcttagacgt caggtggcac ttttcgggga aatgtgcgcg
     1321 gaacccctat ttgtttattt ttctaaatac attcaaatat gtatccgctc atgagacaat
     1381 aaccctgata aatgcttcaa taatattgaa aaaggaagag tatgagtatt caacatttcc
     1441 gtgtcgccct tattcccttt tttgcggcat tttgccttcc tgtttttgct cacccagaaa
     1501 cgctggtgaa agtaaaagat gctgaagatc agttgggtgc acgagtgggt tacatcgaac
     1561 tggatctcaa cagcggtaag atccttgaga gttttcgccc cgaagaacgt tttccaatga
     1621 tgagcacttt taaagttctg ctatgtggcg cggtattatc ccgtgttgac gccgggcaag
     1681 agcaactcgg tcgccgcata cactattctc agaatgactt ggttgagtac tcaccagtca
     1741 cagaaaagca tcttacggat ggcatgacag taagagaatt atgcagtgct gccataacca
     1801 tgagtgataa cactgcggcc aacttacttc tgacaacgat cggaggaccg aaggagctaa
     1861 ccgctttttt gcacaacatg ggggatcatg taactcgcct tgatcgttgg gaaccggagc
     1921 tgaatgaagc cataccaaac gacgagcgtg acaccacgat gcctgcagca atggcaacaa
     1981 cgttgcgcaa actattaact ggcgaactac ttactctagc ttcccggcaa caattaatag
     2041 actggatgga ggcggataaa gttgcaggac cacttctgcg ctcggccctt ccggctggct
     2101 ggtttattgc tgataaatct ggagccggtg agcgtgggtc tcgcggtatc attgcagcac
     2161 tggggccaga tggtaagccc tcccgtatcg tagttatcta cacgacgggg agtcaggcaa
     2221 ctatggatga acgaaataga cagatcgctg agataggtgc ctcactgatt aagcattggt
     2281 aactgtcaga ccaagtttac tcatatatac tttagattga tttaaaactt catttttaat
     2341 ttaaaaggat ctaggtgaag atcctttttg ataatctcat gaccaaaatc ccttaacgtg
     2401 agttttcgtt ccactgagcg tcagaccccg tagaaaagat caaaggatct tcttgagatc
     2461 ctttttttct gcgcgtaatc tgctgcttgc aaacaaaaaa accaccgcta ccagcggtgg
     2521 tttgtttgcc ggatcaagag ctaccaactc tttttccgaa ggtaactggc ttcagcagag
     2581 cgcagatacc aaatactgtc cttctagtgt agccgtagtt aggccaccac ttcaagaact
     2641 ctgtagcacc gcctacatac ctcgctctgc taatcctgtt accagtggct gctgccagtg
     2701 gcgataagtc gtgtcttacc gggttggact caagacgata gttaccggat aaggcgcagc
     2761 ggtcgggctg aacggggggt tcgtgcacac agcccagctt ggagcgaacg acctacaccg
     2821 aactgagata cctacagcgt gagctatgag aaagcgccac gcttcccgaa gggagaaagg
     2881 cggacaggta tccggtaagc ggcagggtcg gaacaggaga gcgcacgagg gagcttccag
     2941 ggggaaacgc ctggtatctt tatagtcctg tcgggtttcg ccacctctga cttgagcgtc
     3001 gatttttgtg atgctcgtca ggggggcgga gcctatggaa aaacgccagc aacgcggcct
     3061 ttttacggtt cctggccttt tgctggcctt ttgctcacat gttctttcct gcgttatccc
     3121 ctgattctgt ggataaccgt attaccgcct ttgagtgagc tgataccgct cgccgcagcc
     3181 gaacgaccga gcgcagcgag tcagtgagcg aggaagcgga agagcgcctg atgcggtatt
     3241 ttctccttac gcatctgtgc ggtatttcac accgcataaa ttccgacacc atcgaatggt
     3301 gcaaaacctt tcgcggtatg gcatgatagc gcccggaaga gagtcaattc agggtggtga
     3361 atgtgaaacc agtaacgtta tacgatgtcg cagagtatgc cggtgtctct tatcagaccg
     3421 tttcccgcgt ggtgaaccag gccagccacg tttctgcgaa aacgcgggaa aaagtggaag
     3481 cggcgatggc ggagctgaat tacattccca accgcgtggc acaacaactg gcgggcaaac
     3541 agtcgttgct gattggcgtt gccacctcca gtctggccct gcacgcgccg tcgcaaattg
     3601 tcgcggcgat taaatctcgc gccgatcaac tgggtgccag cgtggtggtg tcgatggtag
     3661 aacgaagcgg cgtcgaagcc tgtaaagcgg cggtgcacaa tcttctcgcg caacgcgtca
     3721 gtgggctgat cattaactat ccgctggatg accaggatgc cattgctgtg gaagctgcct
     3781 gcactaatgt tccggcgtta tttcttgatg tctctgacca gacacccatc aacagtatta
     3841 ttttctccca tgaagacggt acgcgactgg gcgtggagca tctggtcgca ttgggtcacc
     3901 agcaaatcgc gctgttagcg ggcccattaa gttctgtctc ggcgcgtctg cgtctggctg
     3961 gctggcataa atatctcact cgcaatcaaa ttcagccgat agcggaacgg gaaggcgact
     4021 ggagtgccat gtccggtttt caacaaacca tgcaaatgct gaatgagggc atcgttccca
     4081 ctgcgatgct ggttgccaac gatcagatgg cgctgggcgc aatgcgcgcc attaccgagt
     4141 ccgggctgcg cgttggtgcg gatatctcgg tagtgggata cgacgatacc gaagacagct
     4201 catgttatat cccgccgtca accaccatca aacaggattt tcgcctgctg gggcaaacca
     4261 gcgtggaccg cttgctgcaa ctctctcagg gccaggcggt gaagggcaat cagctgttgc
     4321 ccgtctcact ggtgaaaaga aaaaccaccc tggcgcccaa tacgcaaacc gcctctcccc
     4381 gcgcgttggc cgattcatta atgcagctgg cacgacaggt ttcccgactg gaaagcgggc
     4441 agtgagcgca acgcaattaa tgtgagttag ctcactcatt aggcacccca ggctttacac
     4501 tttatgcttc cggctcgtat gttgtgtgga attgtgagcg gataacaatt tcacacagga
     4561 aacagctatg accatgatta cggattcact ggccgtcgtt ttacaacgtc gtgactggga
     4621 aaaccctggc gttacccaac ttaatcgcct tgcagcacat ccccctttcg ccagctggcg
     4681 taatagcgaa gaggcccgca ccgatcgccc ttcccaacag ttgcgcagcc tgaatggcga
     4741 atggcgcttt gcctggtttc cggcaccaga agcggtgccg gaaagctggc tggagtgcga
     4801 tcttcctgag gccgatactg tcgtcgtccc ctcaaactgg cagatgcacg gttacgatgc
     4861 gcccatctac accaacgtaa cctatcccat tacggtcaat ccgccgtttg ttcccacgga
     4921 gaatccgacg ggttgttact cgctcacatt taatgttgat gaaagctggc tacaggaagg
     4981 ccagacgcga attatttttg atggcgttgg aatt
//
