LOCUS       Exported               11507 bp ds-DNA     circular SYN 13-MAY-2021
DEFINITION  Allows inducible expression of gRNAs and Cas9 for plasmid curing as 
            well as self-curing via a temperature sensitive RK2 replicon..
ACCESSION   .
VERSION     .
KEYWORDS    pFREE-RK2
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 11507)
  AUTHORS   Lauritsen I, Porse A, Sommer MOA, Norholm MHH
  TITLE     A versatile one-step CRISPR-Cas9 based approach to plasmid-curing.
  JOURNAL   Microb Cell Fact. 2017 Aug 2;16(1):135. doi: 
            10.1186/s12934-017-0748-z.
  PUBMED    28764701
REFERENCE   2  (bases 1 to 11507)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"; journalName: "Microb Cell
            Fact."; date: "2017-08-2"; volume: "16(1):135. doi"; pages: " 
            10.1186/s12934-017-0748-z"
FEATURES             Location/Qualifiers
     source          1..11507
                     /organism="synthetic DNA construct"
                     /mol_type="other DNA"
     protein_bind    17..35
                     /gene="tetO"
                     /label=tet operator
                     /bound_moiety="tetracycline repressor TetR"
                     /note="bacterial operator O2 for the tetR and tetA genes"
     protein_bind    42..60
                     /gene="tetO"
                     /label=tet operator
                     /bound_moiety="tetracycline repressor TetR"
                     /note="bacterial operator O2 for the tetR and tetA genes"
     CDS             146..4252
                     /codon_start=1
                     /product="Cas9 (Csn1) endonuclease from the Streptococcus 
                     pyogenes Type II CRISPR/Cas system"
                     /label=Cas9
                     /note="generates RNA-guided double strand breaks in DNA"
                     /translation="MDKKYSIGLDIGTNSVGWAVITDEYKVPSKKFKVLGNTDRHSIKK
                     NLIGALLFDSGETAEATRLKRTARRRYTRRKNRICYLQEIFSNEMAKVDDSFFHRLEES
                     FLVEEDKKHERHPIFGNIVDEVAYHEKYPTIYHLRKKLVDSTDKADLRLIYLALAHMIK
                     FRGHFLIEGDLNPDNSDVDKLFIQLVQTYNQLFEENPINASGVDAKAILSARLSKSRRL
                     ENLIAQLPGEKKNGLFGNLIALSLGLTPNFKSNFDLAEDAKLQLSKDTYDDDLDNLLAQ
                     IGDQYADLFLAAKNLSDAILLSDILRVNTEITKAPLSASMIKRYDEHHQDLTLLKALVR
                     QQLPEKYKEIFFDQSKNGYAGYIDGGASQEEFYKFIKPILEKMDGTEELLVKLNREDLL
                     RKQRTFDNGSIPHQIHLGELHAILRRQEDFYPFLKDNREKIEKILTFRIPYYVGPLARG
                     NSRFAWMTRKSEETITPWNFEEVVDKGASAQSFIERMTNFDKNLPNEKVLPKHSLLYEY
                     FTVYNELTKVKYVTEGMRKPAFLSGEQKKAIVDLLFKTNRKVTVKQLKEDYFKKIECFD
                     SVEISGVEDRFNASLGTYHDLLKIIKDKDFLDNEENEDILEDIVLTLTLFEDREMIEER
                     LKTYAHLFDDKVMKQLKRRRYTGWGRLSRKLINGIRDKQSGKTILDFLKSDGFANRNFM
                     QLIHDDSLTFKEDIQKAQVSGQGDSLHEHIANLAGSPAIKKGILQTVKVVDELVKVMGR
                     HKPENIVIEMARENQTTQKGQKNSRERMKRIEEGIKELGSQILKEHPVENTQLQNEKLY
                     LYYLQNGRDMYVDQELDINRLSDYDVDHIVPQSFLKDDSIDNKVLTRSDKNRGKSDNVP
                     SEEVVKKMKNYWRQLLNAKLITQRKFDNLTKAERGGLSELDKAGFIKRQLVETRQITKH
                     VAQILDSRMNTKYDENDKLIREVKVITLKSKLVSDFRKDFQFYKVREINNYHHAHDAYL
                     NAVVGTALIKKYPKLESEFVYGDYKVYDVRKMIAKSEQEIGKATAKYFFYSNIMNFFKT
                     EITLANGEIRKRPLIETNGETGEIVWDKGRDFATVRKVLSMPQVNIVKKTEVQTGGFSK
                     ESILPKRNSDKLIARKKDWDPKKYGGFDSPTVAYSVLVVAKVEKGKSKKLKSVKELLGI
                     TIMERSSFEKNPIDFLEAKGYKEVKKDLIIKLPKYSLFELENGRKRMLASAGELQKGNE
                     LALPSKYVNFLYLASHYEKLKGSPEDNEQKQLFVEQHKHYLDEIIEQISEFSKRVILAD
                     ANLDKVLSAYNKHRDKPIREQAENIIHLFTLTNLGAPAAFKYFDTTIDRKRYTSTKEVL
                     DATLIHQSITGLYETRIDLSQLGGD"
     primer_bind     complement(4287..4305)
                     /label=T7 Term
                     /note="T7 terminator, reverse primer"
     terminator      4301..4348
                     /label=T7 terminator
                     /note="transcription terminator for bacteriophage T7 RNA 
                     polymerase"
     CDS             4482..5105
                     /codon_start=1
                     /gene="tetR from transposon Tn10"
                     /product="tetracycline repressor TetR"
                     /label=TetR
                     /note="TetR binds to the tetracycline operator tetO to 
                     inhibit transcription. This inhibition can be relieved by 
                     adding tetracycline or doxycycline."
                     /translation="MSRLDKSKVINSALELLNEVGIEGLTTRKLAQKLGVEQPTLYWHV
                     KNKRALLDALAIEMLDRHHTHFCPLEGESWQDFLRNNAKSFRCALLSHRDGAKVHLGTR
                     PTEKQYETLENQLAFLCQQGFSLENALYALSAVGHFTLGCVLEDQEHQVAKEERETPTT
                     DSMPPLLRQAIELFDHQGAEPAFLFGLELIICGLEKQLKCESGS"
     primer_bind     complement(4555..4574)
                     /label=Tet-R
                     /note="Tetracycline resistance gene, reverse primer"
     CDS             complement(5267..6082)
                     /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     5990..6009
                     /label=Kan-R
                     /note="Kanamycin resistance gene, reverse primer"
     promoter        complement(6083..6174)
                     /gene="bla"
                     /label=AmpR promoter
     RBS             6257..6265
                     /label=Shine-Dalgarno sequence
                     /note="full consensus sequence for ribosome-binding sites 
                     upstream of start codons in E. coli; complementary to a 
                     region in the 3 end of the 16S rRNA (Chen et al., 1994)"
     misc_feature    6280..6298
                     /label=Tn5 ME
                     /note="hyperactive mosaic end for Tn5 transposase 
                     recognition (Reznikoff et al., 2004)"
     RBS             6802..6810
                     /label=Shine-Dalgarno sequence
                     /note="full consensus sequence for ribosome-binding sites 
                     upstream of start codons in E. coli; complementary to a 
                     region in the 3 end of the 16S rRNA (Chen et al., 1994)"
     misc_feature    6825..6843
                     /label=Tn5 ME
                     /note="hyperactive mosaic end for Tn5 transposase 
                     recognition (Reznikoff et al., 2004)"
     rep_origin      8217..8748
                     /label=oriV
                     /note="incP origin of replication"
     CDS             9477..10622
                     /codon_start=1
                     /product="trans-acting replication protein that binds to 
                     and activates oriV"
                     /label=trfA
                     /translation="MNRTFDRKAYRQELIDAGFSAEDAETIASRTVMRAPRETFQSVGS
                     MVQQATAKIERDSVQLAPPALPAPSAAVERSRRLEQEAAGLAKSMTIDTRGTMTTKKRK
                     TAGEDLAKQVSEAKQAALLKHTKQQIKEMQLSLFDIAPWPDTMRAMPNDTARSALFTTR
                     NKKIPREALQNKVIFHVNKDVKITYTGVELRADDDELVWQQVLEYAKRTPIGEPITFTF
                     YELCQDLGWSINGRYYTKAEECLSRLQATAMGFTSDRVGHLESVSLLHRFRVLDRGKKT
                     SRCQVLIDEEIVVLFAGDHYTKFIWEKYRKLSPTARRMFDYFSSHREPYPLKLETFRLM
                     CGSDSTRVKKWREQVGEACEELRGSGLVEHAWVNDLVHCKR"
     misc_feature    10662..10680
                     /label=Tn5 ME
                     /note="hyperactive mosaic end for Tn5 transposase 
                     recognition (Reznikoff et al., 2004)"
     misc_RNA        complement(10901..10979)
                     /label=tracrRNA
                     /note="trans-activating CRISPR RNA for the Streptococcus 
                     pyogenes CRISPR/Cas9 system"
     repeat_region   11151..11186
                     /label=DR
                     /note="direct repeat for the Streptococcus pyogenes 
                     CRISPR/Cas system"
     repeat_region   11217..11252
                     /label=DR
                     /note="direct repeat for the Streptococcus pyogenes 
                     CRISPR/Cas system"
     repeat_region   11283..11318
                     /label=DR
                     /note="direct repeat for the Streptococcus pyogenes 
                     CRISPR/Cas system"
     repeat_region   11349..11384
                     /label=DR
                     /note="direct repeat for the Streptococcus pyogenes 
                     CRISPR/Cas system"
     repeat_region   11415..11450
                     /label=DR
                     /note="direct repeat for the Streptococcus pyogenes 
                     CRISPR/Cas system"