LOCUS       sequence-466943-        7734 bp    DNA     circular SYN 15-DEC-2025
DEFINITION  SGC Empty backbone for bacterial expression under T7 promoter. Uses 
            infusion based cloning method..
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 7734)
  TITLE     Cloning Vectors
REFERENCE   2  (bases 1 to 7734)
  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"
COMMENT     Sequence Label: pET15-MHL
FEATURES             Location/Qualifiers
     source          1..7734
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     primer_bind     complement(18..36)
                     /label=pBRforEco
                     /note="pBR322 vectors, upsteam of EcoRI site, forward 
                     primer"
     promoter        104..208
                     /gene="bla"
                     /label=AmpR promoter
     CDS             join(209..277,278..1069)
                     /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(427..446)
                     /label=Amp-R
                     /note="Ampicillin resistance gene, reverse primer"
     rep_origin      1240..1828
                     /direction=RIGHT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     primer_bind     1729..1748
                     /label=pBR322ori-F
                     /note="pBR322 origin, forward primer"
     primer_bind     1982..1999
                     /label=L4440
                     /note="L4440 vector, forward primer"
     misc_feature    2014..2153
                     /label=bom
                     /note="basis of mobility region from pBR322"
     primer_bind     complement(2079..2098)
                     /label=pRS-marker
                     /note="pRS vectors, use to sequence yeast selectable 
                     marker"
     primer_bind     2239..2261
                     /label=pGEX 3'
                     /note="pGEX vectors, reverse primer"
     CDS             complement(2255..2446)
                     /codon_start=1
                     /gene="rop"
                     /product="Rop protein, which maintains plasmids at low copy
                     number"
                     /label=rop
                     /translation="MTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
                     DELYRSCLARFGDDGENL"
     CDS             complement(3758..4840)
                     /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
                     YIPPLTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNTQTASPR
                     ALADSLMQLARQVSRLESGQ"
     primer_bind     4802..4821
                     /label=LacI-R
                     /note="LacI, reverse primer"
     promoter        complement(4841..4918)
                     /gene="lacI"
                     /label=lacI promoter
     primer_bind     5124..5143
                     /label=pBRrevBam
                     /note="pBR322 vectors, tet region, downstream of BamHI, 
                     reverse primer"
     primer_bind     5227..5246
                     /label=T7
                     /note="T7 promoter, forward primer"
     promoter        5227..5245
                     /label=T7 promoter
                     /note="promoter for bacteriophage T7 RNA polymerase"
     protein_bind    5246..5270
                     /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)."
     RBS             5285..5307
                     /note="efficient ribosome binding site from bacteriophage 
                     T7 gene 10 (Olins and Rangwala, 1989)"
     CDS             5317..5334
                     /codon_start=1
                     /product="6xHis affinity tag"
                     /label=6xHis
                     /translation="HHHHHH"
     CDS             5347..5367
                     /codon_start=1
                     /product="tobacco etch virus (TEV) protease recognition and
                     cleavage site"
                     /label=TEV site
                     /translation="ENLYFQG"
     protein_bind    complement(5395..5428)
                     /label=loxP
                     /bound_moiety="Cre recombinase"
                     /note="Cre-mediated recombination occurs in the 8-bp core 
                     sequence (ATGTATGC) (Shaw et al., 2021)."
     promoter        5443..5888
                     /gene="sacR"
                     /label=sacB promoter
                     /note="sacB promoter and control region"
     CDS             join(5889..5975,5976..7310)
                     /codon_start=1
                     /gene="Bacillus subtilis sacB"
                     /product="secreted levansucrase that renders bacterial 
                     growth sensitive to sucrose"
                     /label=SacB
                     /note="negative selection marker"
                     /translation="MNIKKFAKQATVLTFTTALLAGGATQAFAKETNQKPYKETYGISH
                     ITRHDMLQIPEQQKNEKYKVPEFDSSTIKNISSAKGLDVWDSWPLQNTDGTVANYHGYH
                     IVFALAGDPKNADDTSIYMFYQKVGETSIDSWKNAGRVFKDSDKFDANDSILKDQTQEW
                     SGSATFTSDGKIRLFYTDFSGKHYGKQTLTTAQVNVSASDSSLNINGVEDYKSIFDGDG
                     KTYQNVQQFIDEGNYSSGDNHTLRDPHYVEDKGHKYLVFEANTGTEDGYQGEESLFNKA
                     YYGKSTSFFRQESQKLLQSDKKRTAELANGALGMIELNDDYTLKKVMKPLIASNTVTDE
                     IERANVFKMNGKWYLFTDSRGSKMTIDGITSNDIYMLGYVSNSLTGPYKPLNKTGLVLK
                     MDLDPNDVTFTYSHFAVPQAKGNNVVITSYMTNRGFYADKQSTFAPSFLLNIKGKKTSV
                     VKDSILEQGQLTVNK"
     primer_bind     complement(7461..7479)
                     /label=T7 Term
                     /note="T7 terminator, reverse primer"
     terminator      7475..7522
                     /label=T7 terminator
                     /note="transcription terminator for bacteriophage T7 RNA 
                     polymerase"
     promoter        complement(join(7697..7702,7703..7719,7720..7725))
                     /label=tet promoter
                     /note="E. coli promoter for tetracycline efflux protein 
                     gene"
ORIGIN
        1 ttcttgaaga cgaaagggcc tcgtgatacg cctattttta taggttaatg tcatgataat
       61 aatggtttct tagacgtcag gtggcacttt tcggggaaat gtgcgcggaa cccctatttg
      121 tttatttttc taaatacatt caaatatgta tccgctcatg agacaataac cctgataaat
      181 gcttcaataa tattgaaaaa ggaagagtat gagtattcaa catttccgtg tcgcccttat
      241 tccctttttt gcggcatttt gccttcctgt ttttgctcac ccagaaacgc tggtgaaagt
      301 aaaagatgct gaagatcagt tgggtgcacg agtgggttac atcgaactgg atctcaacag
      361 cggtaagatc cttgagagtt ttcgccccga agaacgtttt ccaatgatga gcacttttaa
      421 agttctgcta tgtggcgcgg tattatcccg tgttgacgcc gggcaagagc aactcggtcg
      481 ccgcatacac tattctcaga atgacttggt tgagtactca ccagtcacag aaaagcatct
      541 tacggatggc atgacagtaa gagaattatg cagtgctgcc ataaccatga gtgataacac
      601 tgcggccaac ttacttctga caacgatcgg aggaccgaag gagctaaccg cttttttgca
      661 caacatgggg gatcatgtaa ctcgccttga tcgttgggaa ccggagctga atgaagccat
      721 accaaacgac gagcgtgaca ccacgatgcc tgcagcaatg gcaacaacgt tgcgcaaact
      781 attaactggc gaactactta ctctagcttc ccggcaacaa ttaatagact ggatggaggc
      841 ggataaagtt gcaggaccac ttctgcgctc ggcccttccg gctggctggt ttattgctga
      901 taaatctgga gccggtgagc gtgggtctcg cggtatcatt gcagcactgg ggccagatgg
      961 taagccctcc cgtatcgtag ttatctacac gacggggagt caggcaacta tggatgaacg
     1021 aaatagacag atcgctgaga taggtgcctc actgattaag cattggtaac tgtcagacca
     1081 agtttactca tatatacttt agattgattt aaaacttcat ttttaattta aaaggatcta
     1141 ggtgaagatc ctttttgata atctcatgac caaaatccct taacgtgagt tttcgttcca
     1201 ctgagcgtca gaccccgtag aaaagatcaa aggatcttct tgagatcctt tttttctgcg
     1261 cgtaatctgc tgcttgcaaa caaaaaaacc accgctacca gcggtggttt gtttgccgga
     1321 tcaagagcta ccaactcttt ttccgaaggt aactggcttc agcagagcgc agataccaaa
     1381 tactgtcctt ctagtgtagc cgtagttagg ccaccacttc aagaactctg tagcaccgcc
     1441 tacatacctc gctctgctaa tcctgttacc agtggctgct gccagtggcg ataagtcgtg
     1501 tcttaccggg ttggactcaa gacgatagtt accggataag gcgcagcggt cgggctgaac
     1561 ggggggttcg tgcacacagc ccagcttgga gcgaacgacc tacaccgaac tgagatacct
     1621 acagcgtgag ctatgagaaa gcgccacgct tcccgaaggg agaaaggcgg acaggtatcc
     1681 ggtaagcggc agggtcggaa caggagagcg cacgagggag cttccagggg gaaacgcctg
     1741 gtatctttat agtcctgtcg ggtttcgcca cctctgactt gagcgtcgat ttttgtgatg
     1801 ctcgtcaggg gggcggagcc tatggaaaaa cgccagcaac gcggcctttt tacggttcct
     1861 ggccttttgc tggccttttg ctcacatgtt ctttcctgcg ttatcccctg attctgtgga
     1921 taaccgtatt accgcctttg agtgagctga taccgctcgc cgcagccgaa cgaccgagcg
     1981 cagcgagtca gtgagcgagg aagcggaaga gcgcctgatg cggtattttc tccttacgca
     2041 tctgtgcggt atttcacacc gcaatggtgc actctcagta caatctgctc tgatgccgca
     2101 tagttaagcc agtatacact ccgctatcgc tacgtgactg ggtcatggct gcgccccgac
     2161 acccgccaac acccgctgac gcgccctgac gggcttgtct gctcccggca tccgcttaca
     2221 gacaagctgt gaccgtctcc gggagctgca tgtgtcagag gttttcaccg tcatcaccga
     2281 aacgcgcgag gcagctgcgg taaagctcat cagcgtggtc gtgaagcgat tcacagatgt
     2341 ctgcctgttc atccgcgtcc agctcgttga gtttctccag aagcgttaat gtctggcttc
     2401 tgataaagcg ggccatgtta agggcggttt tttcctgttt ggtcactgat gcctccgtgt
     2461 aagggggatt tctgttcatg ggggtaatga taccgatgaa acgagagagg atgctcacga
     2521 tacgggttac tgatgatgaa catgcccggt tactggaacg ttgtgagggt aaacaactgg
     2581 cggtatggat gcggcgggac cagagaaaaa tcactcaggg tcaatgccag cgcttcgtta
     2641 atacagatgt aggtgttcca cagggtagcc agcagcatcc tgcgatgcag atccggaaca
     2701 taatggtgca gggcgctgac ttccgcgttt ccagacttta cgaaacacgg aaaccgaaga
     2761 ccattcatgt tgttgctcag gtcgcagacg ttttgcagca gcagtcgctt cacgttcgct
     2821 cgcgtatcgg tgattcattc tgctaaccag taaggcaacc ccgccagcct agccgggtcc
     2881 tcaacgacag gagcacgatc atgcgcaccc gtggccagga cccaacgctg cccgagatgc
     2941 gccgcgtgcg gctgctggag atggcggacg cgatggatat gttctgccaa gggttggttt
     3001 gcgcattcac agttctccgc aagaattgat tggctccaat tcttggagtg gtgaatccgt
     3061 tagcgaggtg ccgccggctt ccattcaggt cgaggtggcc cggctccatg caccgcgacg
     3121 caacgcgggg aggcagacaa ggtatagggc ggcgcctaca atccatgcca acccgttcca
     3181 tgtgctcgcc gaggcggcat aaatcgccgt gacgatcagc ggtccaatga tcgaagttag
     3241 gctggtaaga gccgcgagcg atccttgaag ctgtccctga tggtcgtcat ctacctgcct
     3301 ggacagcatg gcctgcaacg cgggcatccc gatgccgccg gaagcgagaa gaatcataat
     3361 ggggaaggcc atccagcctc gcgtcgcgaa cgccagcaag acgtagccca gcgcgtcggc
     3421 cgccatgccg gcgataatgg cctgcttctc gccgaaacgt ttggtggcgg gaccagtgac
     3481 gaaggcttga gcgagggcgt gcaagattcc gaataccgca agcgacaggc cgatcatcgt
     3541 cgcgctccag cgaaagcggt cctcgccgaa aatgacccag agcgctgccg gcacctgtcc
     3601 tacgagttgc atgataaaga agacagtcat aagtgcggcg acgatagtca tgccccgcgc
     3661 ccaccggaag gagctgactg ggttgaaggc tctcaagggc atcggtcgag atcccggtgc
     3721 ctaatgagtg agctaactta cattaattgc gttgcgctca ctgcccgctt tccagtcggg
     3781 aaacctgtcg tgccagctgc attaatgaat cggccaacgc gcggggagag gcggtttgcg
     3841 tattgggcgc cagggtggtt tttcttttca ccagtgagac gggcaacagc tgattgccct
     3901 tcaccgcctg gccctgagag agttgcagca agcggtccac gctggtttgc cccagcaggc
     3961 gaaaatcctg tttgatggtg gttaacggcg ggatataaca tgagctgtct tcggtatcgt
     4021 cgtatcccac taccgagata tccgcaccaa cgcgcagccc ggactcggta atggcgcgca
     4081 ttgcgcccag cgccatctga tcgttggcaa ccagcatcgc agtgggaacg atgccctcat
     4141 tcagcatttg catggtttgt tgaaaaccgg acatggcact ccagtcgcct tcccgttccg
     4201 ctatcggctg aatttgattg cgagtgagat atttatgcca gccagccaga cgcagacgcg
     4261 ccgagacaga acttaatggg cccgctaaca gcgcgatttg ctggtgaccc aatgcgacca
     4321 gatgctccac gcccagtcgc gtaccgtctt catgggagaa aataatactg ttgatgggtg
     4381 tctggtcaga gacatcaaga aataacgccg gaacattagt gcaggcagct tccacagcaa
     4441 tggcatcctg gtcatccagc ggatagttaa tgatcagccc actgacgcgt tgcgcgagaa
     4501 gattgtgcac cgccgcttta caggcttcga cgccgcttcg ttctaccatc gacaccacca
     4561 cgctggcacc cagttgatcg gcgcgagatt taatcgccgc gacaatttgc gacggcgcgt
     4621 gcagggccag actggaggtg gcaacgccaa tcagcaacga ctgtttgccc gccagttgtt
     4681 gtgccacgcg gttgggaatg taattcagct ccgccatcgc cgcttccact ttttcccgcg
     4741 ttttcgcaga aacgtggctg gcctggttca ccacgcggga aacggtctga taagagacac
     4801 cggcatactc tgcgacatcg tataacgtta ctggtttcac attcaccacc ctgaattgac
     4861 tctcttccgg gcgctatcat gccataccgc gaaaggtttt gcgccattcg atggtgtccg
     4921 ggatctcgac gctctccctt atgcgactcc tgcattagga agcagcccag tagtaggttg
     4981 aggccgttga gcaccgccgc cgcaaggaat ggtgcatgca aggagatggc gcccaacagt
     5041 cccccggcca cggggcctgc caccataccc acgccgaaac aagcgctcat gagcccgaag
     5101 tggcgagccc gatcttcccc atcggtgatg tcggcgatat aggcgccagc aaccgcacct
     5161 gtggcgccgg tgatgccggc cacgatgcgt ccggcgtaga ggatcgagat ctcgatcccg
     5221 cgaaattaat acgactcact ataggggaat tgtgagcgga taacaattcc cctctagaaa
     5281 taattttgtt taactttaag aaggagatat accatgcatc atcatcatca tcacagcagc
     5341 ggcagagaaa acttgtattt ccagggccat atgagttctc ctcctgaaag atccataact
     5401 tcgtatagca tacattatac gaagttatgc ggccgcgacg tccacatata cctgccgttc
     5461 actattattt agtgaaatga gatattatga tattttctga attgtgatta aaaaggcaac
     5521 tttatgccca tgcaacagaa actataaaaa atacagagaa tgaaaagaaa cagatagatt
     5581 ttttagttct ttaggcccgt agtctgcaaa tccttttatg attttctatc aaacaaaaga
     5641 ggaaaataga ccagttgcaa tccaaacgag agtctaatag aatgaggtcg aaaagtaaat
     5701 cgcgcgggtt tgttactgat aaagcaggca agacctaaaa tgtgtaaagg gcaaagtgta
     5761 tactttggcg tcacccctta catattttag gtcttttttt attgtgcgta actaacttgc
     5821 catcttcaaa caggagggct ggaagaagca gaccgctaac acagtacata aaaaaggaga
     5881 catgaacgat gaacatcaaa aagtttgcaa aacaagcaac agtattaacc tttactaccg
     5941 cactgctggc aggaggcgca actcaagcgt ttgcgaaaga aacgaaccaa aagccatata
     6001 aggaaacata cggcatttcc catattacac gccatgatat gctgcaaatc cctgaacagc
     6061 aaaaaaatga aaaatataaa gttcctgagt tcgattcgtc cacaattaaa aatatctctt
     6121 ctgcaaaagg cctggacgtt tgggacagct ggccattaca aaacactgac ggcactgtcg
     6181 caaactatca cggctaccac atcgtctttg cattagccgg agatcctaaa aatgcggatg
     6241 acacatcgat ttacatgttc tatcaaaaag tcggcgaaac ttctattgac agctggaaaa
     6301 acgctggccg cgtctttaaa gacagcgaca aattcgatgc aaatgattct atcctaaaag
     6361 accaaacaca agaatggtca ggttcagcca catttacatc tgacggaaaa atccgtttat
     6421 tctacactga tttctccggt aaacattacg gcaaacaaac actgacaact gcacaagtta
     6481 acgtatcagc atcagacagc tctttgaaca tcaacggtgt agaggattat aaatcaatct
     6541 ttgacggtga cggaaaaacg tatcaaaatg tacagcagtt catcgatgaa ggcaactaca
     6601 gctcaggcga caaccatacg ctgagagatc ctcactacgt agaagataaa ggccacaaat
     6661 acttagtatt tgaagcaaac actggaactg aagatggcta ccaaggcgaa gaatctttat
     6721 ttaacaaagc atactatggc aaaagcacat cattcttccg tcaagaaagt caaaaacttc
     6781 tgcaaagcga taaaaaacgc acggctgagt tagcaaacgg cgctctcggt atgattgagc
     6841 taaacgatga ttacacactg aaaaaagtga tgaaaccgct gattgcatct aacacagtaa
     6901 cagatgaaat tgaacgcgcg aacgtcttta aaatgaacgg caaatggtac ctgttcactg
     6961 actcccgcgg atcaaaaatg acgattgacg gcattacgtc taacgatatt tacatgcttg
     7021 gttatgtttc taattcttta actggcccat acaagccgct gaacaaaact ggccttgtgt
     7081 taaaaatgga tcttgatcct aacgatgtaa cctttactta ctcacacttc gctgtacctc
     7141 aagcgaaagg aaacaatgtc gtgattacaa gctatatgac aaacagagga ttctacgcag
     7201 acaaacaatc aacgtttgcg cctagcttcc tgctgaacat caaaggcaag aaaacatctg
     7261 ttgtcaaaga cagcatcctt gaacaaggac aattaacagt taacaaataa aaacgcaaaa
     7321 gaaaatgccg atatcctatt ggcattgacg tcaggtggca cttttcgagg agatcatgca
     7381 catgatgacg aagcttgcgg ccgcactcga ggatccggct gctaacaaag cccgaaagga
     7441 agctgagttg gctgctgcca ccgctgagca ataactagca taaccccttg gggcctctaa
     7501 acgggtcttg aggggttttt tgctgaaagg aggaactata tccggatatc ccgcaagagg
     7561 cccggcagta ccggcataac caagcctatg cctacagcat ccagggtgac ggtgccgagg
     7621 atgacgatga gcgcattgtt agatttcata cacggtgcct gactgcgtta gcaatttaac
     7681 tgtgataaac taccgcatta aagcttatcg atgataagct gtcaaacatg agaa
//
