LOCUS       sequence-307464-        5587 bp    DNA     circular SYN 15-DEC-2025
DEFINITION  Expresses recombinant Cholera Toxin B Subunit.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5587)
  AUTHORS   Luong P, Li Q, Chen PF, Wrighton PJ, Chang D, Dwyer S, Bayer MT, 
            Snapper SB, Hansen SH, Thiagarajah JT, Goessling W, Lencer WI
  TITLE     A quantitative single-cell assay for retrograde membrane traffic 
            enables rapid detection of defects in cellular organization.
  JOURNAL   Mol Biol Cell. 2019 Nov 27:mbcE19070375. doi: 
            10.1091/mbc.E19-07-0375.
  PUBMED    31774722
REFERENCE   2  (bases 1 to 5587)
  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: "Mol Biol 
            Cell. 2019 Nov 27:mbcE19070375. doi: 10.1091/mbc.E19-07-0375."
COMMENT     Sequence Label: CTB
FEATURES             Location/Qualifiers
     source          1..5587
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     rep_origin      1..589
                     /direction=RIGHT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     primer_bind     490..509
                     /label=pBR322ori-F
                     /note="pBR322 origin, forward primer"
     primer_bind     743..760
                     /label=L4440
                     /note="L4440 vector, forward primer"
     misc_feature    775..914
                     /label=bom
                     /note="basis of mobility region from pBR322"
     primer_bind     complement(840..859)
                     /label=pRS-marker
                     /note="pRS vectors, use to sequence yeast selectable 
                     marker"
     primer_bind     1000..1022
                     /label=pGEX 3'
                     /note="pGEX vectors, reverse primer"
     CDS             complement(1016..1207)
                     /codon_start=1
                     /gene="rop"
                     /product="Rop protein, which maintains plasmids at low copy
                     number"
                     /label=rop
                     /translation="MTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
                     DELYRSCLARFGDDGENL"
     CDS             complement(2016..3098)
                     /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     3060..3079
                     /label=LacI-R
                     /note="LacI, reverse primer"
     promoter        complement(3099..3176)
                     /gene="lacI"
                     /label=lacI promoter
     primer_bind     3382..3401
                     /label=pBRrevBam
                     /note="pBR322 vectors, tet region, downstream of BamHI, 
                     reverse primer"
     primer_bind     3485..3504
                     /label=T7
                     /note="T7 promoter, forward primer"
     promoter        3485..3503
                     /label=T7 promoter
                     /note="promoter for bacteriophage T7 RNA polymerase"
     protein_bind    3504..3528
                     /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             3543..3565
                     /note="efficient ribosome binding site from bacteriophage 
                     T7 gene 10 (Olins and Rangwala, 1989)"
     CDS             3936..3953
                     /codon_start=1
                     /product="6xHis affinity tag"
                     /label=6xHis
                     /translation="HHHHHH"
     primer_bind     complement(4006..4024)
                     /label=T7 Term
                     /note="T7 terminator, reverse primer"
     terminator      4020..4067
                     /label=T7 terminator
                     /note="transcription terminator for bacteriophage T7 RNA 
                     polymerase"
     rep_origin      4104..4559
                     /direction=RIGHT
                     /label=f1 ori
                     /note="f1 bacteriophage origin of replication; arrow 
                     indicates direction of (+) strand synthesis"
     primer_bind     complement(4191..4210)
                     /label=F1ori-R
                     /note="F1 origin, reverse primer"
     primer_bind     4401..4422
                     /label=F1ori-F
                     /note="F1 origin, forward primer"
     CDS             complement(4651..5466)
                     /codon_start=1
                     /product="aminoglycoside phosphotransferase"
                     /label=KanR
                     /note="confers resistance to kanamycin in bacteria or G418 
                     (Geneticin(R)) in eukaryotes"
                     /translation="MSHIQRETSCSRPRLNSNMDADLYGYKWARDNVGQSGATIYRLYG
                     KPDAPELFLKHGKGSVANDVTDEMVRLNWLTEFMPLPTIKHFIRTPDDAWLLTTAIPGK
                     TAFQVLEEYPDSGENIVDALAVFLRRLHSIPVCNCPFNSDRVFRLAQAQSRMNNGLVDA
                     SDFDDERNGWPVEQVWKEMHKLLPFSPDSVVTHGDFSLDNLIFDEGKLIGCIDVGRVGI
                     ADRYQDLAILWNCLGEFSPSLQKRLFQKYGIDNPDMNKLQFHLMLDEFF"
     CDS             complement(4651..5466)
                     /codon_start=1
                     /gene="aph(3')-Ia"
                     /product="aminoglycoside phosphotransferase"
                     /label=KanR
                     /note="confers resistance to kanamycin in bacteria or G418 
                     (Geneticin(R)) in eukaryotes"
                     /translation="MSHIQRETSCSRPRLNSNMDADLYGYKWARDNVGQSGATIYRLYG
                     KPDAPELFLKHGKGSVANDVTDEMVRLNWLTEFMPLPTIKHFIRTPDDAWLLTTAIPGK
                     TAFQVLEEYPDSGENIVDALAVFLRRLHSIPVCNCPFNSDRVFRLAQAQSRMNNGLVDA
                     SDFDDERNGWPVEQVWKEMHKLLPFSPDSVVTHGDFSLDNLIFDEGKLIGCIDVGRVGI
                     ADRYQDLAILWNCLGEFSPSLQKRLFQKYGIDNPDMNKLQFHLMLDEFF"
     primer_bind     5374..5393
                     /label=Kan-R
                     /note="Kanamycin resistance gene, reverse primer"
     primer_bind     5458..5477
                     /label=pENTR-R
                     /note="pENTR vectors, reverse primer"
ORIGIN
        1 ttgagatcct ttttttctgc gcgtaatctg ctgcttgcaa acaaaaaaac caccgctacc
       61 agcggtggtt tgtttgccgg atcaagagct accaactctt tttccgaagg taactggctt
      121 cagcagagcg cagataccaa atactgtcct tctagtgtag ccgtagttag gccaccactt
      181 caagaactct gtagcaccgc ctacatacct cgctctgcta atcctgttac cagtggctgc
      241 tgccagtggc gataagtcgt gtcttaccgg gttggactca agacgatagt taccggataa
      301 ggcgcagcgg tcgggctgaa cggggggttc gtgcacacag cccagcttgg agcgaacgac
      361 ctacaccgaa ctgagatacc tacagcgtga gctatgagaa agcgccacgc ttcccgaagg
      421 gagaaaggcg gacaggtatc cggtaagcgg cagggtcgga acaggagagc gcacgaggga
      481 gcttccaggg ggaaacgcct ggtatcttta tagtcctgtc gggtttcgcc acctctgact
      541 tgagcgtcga tttttgtgat gctcgtcagg ggggcggagc ctatggaaaa acgccagcaa
      601 cgcggccttt ttacggttcc tggccttttg ctggcctttt gctcacatgt tctttcctgc
      661 gttatcccct gattctgtgg ataaccgtat taccgccttt gagtgagctg ataccgctcg
      721 ccgcagccga acgaccgagc gcagcgagtc agtgagcgag gaagcggaag agcgcctgat
      781 gcggtatttt ctccttacgc atctgtgcgg tatttcacac cgcaatggtg cactctcagt
      841 acaatctgct ctgatgccgc atagttaagc cagtatacac tccgctatcg ctacgtgact
      901 gggtcatggc tgcgccccga cacccgccaa cacccgctga cgcgccctga cgggcttgtc
      961 tgctcccggc atccgcttac agacaagctg tgaccgtctc cgggagctgc atgtgtcaga
     1021 ggttttcacc gtcatcaccg aaacgcgcga ggcagctgcg gtaaagctca tcagcgtggt
     1081 cgtgaagcga ttcacagatg tctgcctgtt catccgcgtc cagctcgttg agtttctcca
     1141 gaagcgttaa tgtctggctt ctgataaagc gggccatgtt aagggcggtt ttttcctgtt
     1201 tggtcactga tgcctccgtg taagggggat ttctgttcat gggggtaatg ataccgatga
     1261 aacgagagag gatgctcacg atacgggtta ctgatgatga acatgcccgg ttactggaac
     1321 gttgtgaggg taaacaactg gcggtatgga tgcggcggga ccagagaaaa atcactcagg
     1381 gtcaatgcca gcgcttcgtt aatacagatg taggtgttcc acagggtagc cagcagcatc
     1441 ctgcgatgca gatccggaac ataatggtgc agggcgctga cttccgcgtt tccagacttt
     1501 acgaaacacg gaaaccgaag accattcatg ttgttgctca ggtcgcagac gttttgcagc
     1561 agcagtcgct tcacgttcgc tcgcgtatcg gtgattcatt ctgctaacca gtaaggcaac
     1621 cccgccagcc tagccgggtc ctcaacgaca ggagcacgat catgcgcacc cgtggggccg
     1681 ccatgccggc gataatggcc tgcttctcgc cgaaacgttt ggtggcggga ccagtgacga
     1741 aggcttgagc gagggcgtgc aagattccga ataccgcaag cgacaggccg atcatcgtcg
     1801 cgctccagcg aaagcggtcc tcgccgaaaa tgacccagag cgctgccggc acctgtccta
     1861 cgagttgcat gataaagaag acagtcataa gtgcggcgac gatagtcatg ccccgcgccc
     1921 accggaagga gctgactggg ttgaaggctc tcaagggcat cggtcgagat cccggtgcct
     1981 aatgagtgag ctaacttaca ttaattgcgt tgcgctcact gcccgctttc cagtcgggaa
     2041 acctgtcgtg ccagctgcat taatgaatcg gccaacgcgc ggggagaggc ggtttgcgta
     2101 ttgggcgcca gggtggtttt tcttttcacc agtgagacgg gcaacagctg attgcccttc
     2161 accgcctggc cctgagagag ttgcagcaag cggtccacgc tggtttgccc cagcaggcga
     2221 aaatcctgtt tgatggtggt taacggcggg atataacatg agctgtcttc ggtatcgtcg
     2281 tatcccacta ccgagatatc cgcaccaacg cgcagcccgg actcggtaat ggcgcgcatt
     2341 gcgcccagcg ccatctgatc gttggcaacc agcatcgcag tgggaacgat gccctcattc
     2401 agcatttgca tggtttgttg aaaaccggac atggcactcc agtcgccttc ccgttccgct
     2461 atcggctgaa tttgattgcg agtgagatat ttatgccagc cagccagacg cagacgcgcc
     2521 gagacagaac ttaatgggcc cgctaacagc gcgatttgct ggtgacccaa tgcgaccaga
     2581 tgctccacgc ccagtcgcgt accgtcttca tgggagaaaa taatactgtt gatgggtgtc
     2641 tggtcagaga catcaagaaa taacgccgga acattagtgc aggcagcttc cacagcaatg
     2701 gcatcctggt catccagcgg atagttaatg atcagcccac tgacgcgttg cgcgagaaga
     2761 ttgtgcaccg ccgctttaca ggcttcgacg ccgcttcgtt ctaccatcga caccaccacg
     2821 ctggcaccca gttgatcggc gcgagattta atcgccgcga caatttgcga cggcgcgtgc
     2881 agggccagac tggaggtggc aacgccaatc agcaacgact gtttgcccgc cagttgttgt
     2941 gccacgcggt tgggaatgta attcagctcc gccatcgccg cttccacttt ttcccgcgtt
     3001 ttcgcagaaa cgtggctggc ctggttcacc acgcgggaaa cggtctgata agagacaccg
     3061 gcatactctg cgacatcgta taacgttact ggtttcacat tcaccaccct gaattgactc
     3121 tcttccgggc gctatcatgc cataccgcga aaggttttgc gccattcgat ggtgtccggg
     3181 atctcgacgc tctcccttat gcgactcctg cattaggaag cagcccagta gtaggttgag
     3241 gccgttgagc accgccgccg caaggaatgg tgcatgcaag gagatggcgc ccaacagtcc
     3301 cccggccacg gggcctgcca ccatacccac gccgaaacaa gcgctcatga gcccgaagtg
     3361 gcgagcccga tcttccccat cggtgatgtc ggcgatatag gcgccagcaa ccgcacctgt
     3421 ggcgccggtg atgccggcca cgatgcgtcc ggcgtagagg atcgagatct cgatcccgcg
     3481 aaattaatac gactcactat aggggaattg tgagcggata acaattcccc tctagaaata
     3541 attttgttta actttaagaa ggagatatac catgggcacc cctcaaaata ttactgattt
     3601 gtgtgcagaa taccacaaca cacaaataca tacgctaaat gataagatat tttcgtatac
     3661 agaatctcta gctggaaaaa gagagatggc tatcattact tttaagaatg gtgcaacttt
     3721 tcaagtagaa gtaccaggta gtcaacatat agattcacaa aaaaaagcga ttgaaaggat
     3781 gaaggatacc ctgaggattg catatcttac tgaagctaaa gtcgaaaagt tatgtgtatg
     3841 gaataataaa acgcctcatg cgattgccgc aattagtatg gcgaattgag gatccgaatt
     3901 cgagctccgt cgacaagctt gcggccgcac tcgagcacca ccaccaccac cactgagatc
     3961 cggctgctaa caaagcccga aaggaagctg agttggctgc tgccaccgct gagcaataac
     4021 tagcataacc ccttggggcc tctaaacggg tcttgagggg ttttttgctg aaaggaggaa
     4081 ctatatccgg attggcgaat gggacgcgcc ctgtagcggc gcattaagcg cggcgggtgt
     4141 ggtggttacg cgcagcgtga ccgctacact tgccagcgcc ctagcgcccg ctcctttcgc
     4201 tttcttccct tcctttctcg ccacgttcgc cggctttccc cgtcaagctc taaatcgggg
     4261 gctcccttta gggttccgat ttagtgcttt acggcacctc gaccccaaaa aacttgatta
     4321 gggtgatggt tcacgtagtg ggccatcgcc ctgatagacg gtttttcgcc ctttgacgtt
     4381 ggagtccacg ttctttaata gtggactctt gttccaaact ggaacaacac tcaaccctat
     4441 ctcggtctat tcttttgatt tataagggat tttgccgatt tcggcctatt ggttaaaaaa
     4501 tgagctgatt taacaaaaat ttaacgcgaa ttttaacaaa atattaacgc ttacaattta
     4561 ggtggcactt ttcggggaaa tgtgcgcgga acccctattt gtttattttt ctaaatacat
     4621 tcaaatatgt atccgctcat gaattaattc ttagaaaaac tcatcgagca tcaaatgaaa
     4681 ctgcaattta ttcatatcag gattatcaat accatatttt tgaaaaagcc gtttctgtaa
     4741 tgaaggagaa aactcaccga ggcagttcca taggatggca agatcctggt atcggtctgc
     4801 gattccgact cgtccaacat caatacaacc tattaatttc ccctcgtcaa aaataaggtt
     4861 atcaagtgag aaatcaccat gagtgacgac tgaatccggt gagaatggca aaagtttatg
     4921 catttctttc cagacttgtt caacaggcca gccattacgc tcgtcatcaa aatcactcgc
     4981 atcaaccaaa ccgttattca ttcgtgattg cgcctgagcg agacgaaata cgcgatcgct
     5041 gttaaaagga caattacaaa caggaatcga atgcaaccgg cgcaggaaca ctgccagcgc
     5101 atcaacaata ttttcacctg aatcaggata ttcttctaat acctggaatg ctgttttccc
     5161 ggggatcgca gtggtgagta accatgcatc atcaggagta cggataaaat gcttgatggt
     5221 cggaagaggc ataaattccg tcagccagtt tagtctgacc atctcatctg taacatcatt
     5281 ggcaacgcta cctttgccat gtttcagaaa caactctggc gcatcgggct tcccatacaa
     5341 tcgatagatt gtcgcacctg attgcccgac attatcgcga gcccatttat acccatataa
     5401 atcagcatcc atgttggaat ttaatcgcgg cctagagcaa gacgtttccc gttgaatatg
     5461 gctcataaca ccccttgtat tactgtttat gtaagcagac agttttattg ttcatgacca
     5521 aaatccctta acgtgagttt tcgttccact gagcgtcaga ccccgtagaa aagatcaaag
     5581 gatcttc
//
