LOCUS       sequence-417365-        5910 bp    DNA     circular SYN 15-DEC-2025
DEFINITION  SpyTag counterpart binding domain, SpyCatcher, fused to 
            transcriptional repressor KRAB, with GFP selection.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5910)
  AUTHORS   Swain T, Pflueger C, Freytag S, Poppe D, Pflueger J, Nguyen TV, Li 
            JK, Lister R
  TITLE     A modular dCas9-based recruitment platform for combinatorial 
            epigenome editing.
  JOURNAL   Nucleic Acids Res. 2023 Nov 24:gkad1108. doi: 10.1093/nar/gkad1108.
  PUBMED    38000387
REFERENCE   2  (bases 1 to 5910)
  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: "Nucleic 
            Acids Res. 2023 Nov 24:gkad1108. doi: 10.1093/nar/gkad1108."
COMMENT     Sequence Label: LLP780_SpyCatcher-KRAB-CO
FEATURES             Location/Qualifiers
     source          1..5910
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     polyA_signal    6..230
                     /label=bGH poly(A) signal
                     /note="bovine growth hormone polyadenylation signal"
     CDS             complement(join(240..950,951..953,954..956))
                     /codon_start=1
                     /product="enhanced GFP"
                     /label=EGFP
                     /translation="MVSKGEELFTGVVPILVELDGDVNGHKFSVSGEGEGDATYGKLTL
                     KFICTTGKLPVPWPTLVTTLTYGVQCFSRYPDHMKQHDFFKSAMPEGYVQERTIFFKDD
                     GNYKTRAEVKFEGDTLVNRIELKGIDFKEDGNILGHKLEYNYNSHNVYIMADKQKNGIK
                     VNFKIRHNIEDGSVQLADHYQQNTPIGDGPVLLPDNHYLSTQSALSKDPNEKRDHMVLL
                     EFVTAAGITLGMDELYK"
     CDS             complement(join(240..950,951..953,954..956))
                     /codon_start=1
                     /product="the original enhanced GFP (Yang et al., 1996)"
                     /label=EGFP
                     /note="mammalian codon-optimized"
                     /translation="MVSKGEELFTGVVPILVELDGDVNGHKFSVSGEGEGDATYGKLTL
                     KFICTTGKLPVPWPTLVTTLTYGVQCFSRYPDHMKQHDFFKSAMPEGYVQERTIFFKDD
                     GNYKTRAEVKFEGDTLVNRIELKGIDFKEDGNILGHKLEYNYNSHNVYIMADKQKNGIK
                     VNFKIRHNIEDGSVQLADHYQQNTPIGDGPVLLPDNHYLSTQSALSKDPNEKRDHMVLL
                     EFVTAAGITLGMDELYK"
     primer_bind     complement(282..303)
                     /label=EGFP-C
                     /note="EGFP, forward primer"
     primer_bind     631..650
                     /label=EXFP-R
                     /note="For distinguishing EGFP variants, reverse primer"
     primer_bind     890..911
                     /label=EGFP-N
                     /note="EGFP, reverse primer"
     regulatory      953..962
                     /label=Kozak sequence
                     /note="vertebrate consensus sequence for strong initiation 
                     of translation (Kozak, 1987)"
                     /regulatory_class="other"
     promoter        complement(981..1191)
                     /label=SV40 promoter
                     /note="SV40 early promoter"
     rep_origin      987..1122
                     /label=SV40 ori
                     /note="SV40 origin of replication"
     primer_bind     complement(1041..1060)
                     /label=SV40pro-F
                     /note="SV40 promoter/origin, forward primer"
     primer_bind     complement(1248..1267)
                     /label=pRS-marker
                     /note="pRS vectors, use to sequence yeast selectable 
                     marker"
     promoter        1485..2663
                     /label=EF-1-alpha promoter
                     /note="strong constitutive promoter for human elongation 
                     factor EF-1-alpha"
     intron          1716..2654
                     /label=EF-1-alpha intron A
                     /note="intron upstream of the start codon of human 
                     EF-1-alpha"
     primer_bind     2611..2631
                     /label=EF1a-F
                     /note="Human elongation factor-1a promoter, forward primer"
     regulatory      2670..2679
                     /label=Kozak sequence
                     /note="vertebrate consensus sequence for strong initiation 
                     of translation (Kozak, 1987)"
                     /regulatory_class="other"
     CDS             2682..2702
                     /codon_start=1
                     /product="nuclear localization signal of SV40 (simian virus
                     40) large T antigen"
                     /label=SV40 NLS
                     /translation="PKKKRKV"
     CDS             2703..2774
                     /codon_start=1
                     /product="three tandem FLAG(R) epitope tags"
                     /label=3xFLAG
                     /translation="DYKDDDDKDYKDDDDKDYKDDDDK"
     polyA_signal    3536..3657
                     /label=SV40 poly(A) signal
                     /note="SV40 polyadenylation signal"
     primer_bind     complement(3573..3592)
                     /label=SV40pA-R
                     /note="SV40 polyA, reverse primer"
     primer_bind     complement(3759..3775)
                     /label=M13 rev
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     primer_bind     complement(3759..3775)
                     /label=M13 Reverse
                     /note="In lacZ gene. Also called M13-rev"
     primer_bind     complement(3772..3794)
                     /label=M13/pUC Reverse
                     /note="In lacZ gene"
     protein_bind    3783..3799
                     /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)."
     promoter        complement(join(3807..3813,3814..3831,3832..3837))
                     /label=lac promoter
                     /note="promoter for the E. coli lac operon"
     protein_bind    3852..3873
                     /label=CAP binding site
                     /bound_moiety="E. coli catabolite activator protein"
                     /note="CAP binding activates transcription in the presence 
                     of cAMP."
     primer_bind     complement(3990..4007)
                     /label=L4440
                     /note="L4440 vector, forward primer"
     rep_origin      complement(4161..4749)
                     /direction=LEFT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     primer_bind     complement(4241..4260)
                     /label=pBR322ori-F
                     /note="pBR322 origin, forward primer"
     CDS             complement(join(4920..5711,5712..5780))
                     /codon_start=1
                     /gene="bla"
                     /product="beta-lactamase"
                     /label=AmpR
                     /note="confers resistance to ampicillin, carbenicillin, and
                     related antibiotics"
                     /translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
                     ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVEYS
                     PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
                     EPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
                     LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
                     LIKHW"
     primer_bind     5543..5562
                     /label=Amp-R
                     /note="Ampicillin resistance gene, reverse primer"
     promoter        complement(5781..5885)
                     /gene="bla"
                     /label=AmpR promoter
ORIGIN
        1 gacgtccata gagcccaccg catccccagc atgcctgcta ttgtcttccc aatcctcccc
       61 cttgctgtcc tgccccaccc caccccccag aatagaatga cacctactca gacaatgcga
      121 tgcaatttcc tcattttatt aggaaaggac agtgggagtg gcaccttcca gggtcaagga
      181 aggcacgggg gaggggcaaa caacagatgg ctggcaacta gaaggcacag tcaactgccc
      241 ttgtacagct cgtccatgcc gagagtgatc ccggcggcgg tcacgaactc cagcaggacc
      301 atgtgatcgc gcttctcgtt ggggtctttg ctcagggcgg actgggtgct caggtagtgg
      361 ttgtcgggca gcagcacggg gccgtcgccg atgggggtgt tctgctggta gtggtcggcg
      421 agctgcacgc tgccgtcctc gatgttgtgg cggatcttga agttcacctt gatgccgttc
      481 ttctgcttgt cggccatgat atagacgttg tggctgttgt agttgtactc cagcttgtgc
      541 cccaggatgt tgccgtcctc cttgaagtcg atgcccttca gctcgatgcg gttcaccagg
      601 gtgtcgccct cgaacttcac ctcggcgcgg gtcttgtagt tgccgtcgtc cttgaagaag
      661 atggtgcgct cctggacgta gccttcgggc atggcggact tgaagaagtc gtgctgcttc
      721 atgtggtcgg ggtagcggct gaagcactgc acgccgtagg tcagggtggt cacgagggtg
      781 ggccagggca cgggcagctt gccggtggtg cagatgaact tcagggtcag cttgccgtag
      841 gtggcatcgc cctcgccctc gccggacacg ctgaacttgt ggccgtttac gtcgccgtcc
      901 agctcgacca ggatgggcac caccccggtg aacagctcct cgcccttgct caccatggtg
      961 gccgtacggg tggcgcgcgt agcctaggcc tccaaaaaag cctcctcact acttctggaa
     1021 tagctcagag gcagaggcgg cctcggcctc tgcataaata aaaaaaatta gtcagccatg
     1081 gggcggagaa tgggcggaac tgggcggagt taggggcggg atgggcggag ttaggggcgg
     1141 gactatggtt gctgactaat tgagatgcat gctttgcata cttctgcctg cctgaattca
     1201 cgtcgacgga tcgggagatc tcccgatccc ctatggtgca ctctcagtac aatctgctct
     1261 gatgccgcat agttaagcca gtatctgctc cctgcttgtg tgttggaggt cgctgagtag
     1321 tgcgcgagca aaatttaagc tacaacaagg caaggcttga ccgacaattg catgaagaat
     1381 ctgcttaggg ttaggcgttt tgcgtgcaaa gatggataaa gttttaaaca gagaggaatc
     1441 tttgcagcta atggaccttc taggtcttga aaggagtggg aattggctcc ggtgcccgtc
     1501 agtgggcaga gcgcacatcg cccacagtcc ccgagaagtt ggggggaggg gtcggcaatt
     1561 gaaccggtgc ctagagaagg tggcgcgggg taaactggga aagtgatgtc gtgtactggc
     1621 tccgcctttt tcccgagggt gggggagaac cgtatataag tgcagtagtc gccgtgaacg
     1681 ttctttttcg caacgggttt gccgccagaa cacaggtaag tgccgtgtgt ggttcccgcg
     1741 ggcctggcct ctttacgggt tatggccctt gcgtgccttg aattacttcc acctggctgc
     1801 agtacgtgat tcttgatccc gagcttcggg ttggaagtgg gtgggagagt tcgaggcctt
     1861 gcgcttaagg agccccttcg cctcgtgctt gagttgaggc ctggcctggg cgctggggcc
     1921 gccgcgtgcg aatctggtgg caccttcgcg cctgtctcgc tgctttcgat aagtctctag
     1981 ccatttaaaa tttttgatga cctgctgcga cgcttttttt ctggcaagat agtcttgtaa
     2041 atgcgggcca agatctgcac actggtattt cggtttttgg ggccgcgggc ggcgacgggg
     2101 cccgtgcgtc ccagcgcaca tgttcggcga ggcggggcct gcgagcgcgg ccaccgagaa
     2161 tcggacgggg gtagtctcaa gctggccggc ctgctctggt gcctggcctc gcgccgccgt
     2221 gtatcgcccc gccctgggcg gcaaggctgg cccggtcggc accagttgcg tgagcggaaa
     2281 gatggccgct tcccggccct gctgcaggga gctcaaaatg gaggacgcgg cgctcgggag
     2341 agcgggcggg tgagtcaccc acacaaagga aaagggcctt tccgtcctca gccgtcgctt
     2401 catgtgactc cacggagtac cgggcgccgt ccaggcacct cgattagttc tcgagctttt
     2461 ggagtacgtc gtctttaggt tggggggagg ggttttatgc gatggagttt ccccacactg
     2521 agtgggtgga gactgaagtt aggccagctt ggcacttgat gtaattctcc ttggaatttg
     2581 ccctttttga gtttggatct tggttcattc tcaagcctca gacagtggtt caaagttttt
     2641 ttcttccatt tcaggtgtcg tgacgtacgg ccaccatggg tcctaagaaa aagaggaagg
     2701 tggattacaa ggatgacgac gataaggact ataaggacga tgatgacaag gactacaaag
     2761 atgatgacga taaagatagt gctacccata ttaaattctc aaaacgtgat gaggacggca
     2821 aagagttagc tggtgcaact atggagttgc gtgattcatc tggtaaaact attagtacat
     2881 ggatttcaga tggacaagtg aaagatttct acctgtatcc aggaaaatat acatttgtcg
     2941 aaaccgcagc accagacggt tatgaggtag caactgctat tacctttaca gttaatgagc
     3001 aaggtcaggt tactgtaaat ggcaaagcaa ctaaaggtga cgctcatatt agcgctggag
     3061 ggggtggctc cggcggagga ggctctggtg gcggagggag tggagcggcc gctgatgcca
     3121 agtccctgac cgcctggagc cgcaccttgg taacttttaa ggatgttttc gttgatttta
     3181 ctagagagga gtggaaattg cttgacaccg ctcagcagat tctgtaccgg aacgttatgc
     3241 tggaaaatta caagaatttg gtgagtcttg gctaccaact tactaagccc gacgttattt
     3301 tgagactcga gaagggggag gaaccgtggc tggtggaacg ggagattcat caggagacac
     3361 atcctgattc tgaaacagct tttgaaataa agtcttctgt ttgacgttga gtctctgttt
     3421 gtggtgactg atcataatca gccataccac atttgtagag gttttacttg ctttaaaaaa
     3481 cctcccacac ctccccctga acctgaaaca taaaatgaat gcaattgttg ttgttaactt
     3541 gtttattgca gcttataatg gttacaaata aagcaatagc atcacaaatt tcacaaataa
     3601 agcatttttt tcactgcatt ctagttgtgg tttgtccaaa ctcatcaatg tatcttaatg
     3661 cgtcgagtgc attctagttg tggtttgtcc aaactcatca atgtatctta tcatgtctgt
     3721 ataccgtcga cctctagcta gagcttggcg taatcatggt catagctgtt tcctgtgtga
     3781 aattgttatc cgctcacaat tccacacaac atacgagccg gaagcataaa gtgtaaagcc
     3841 tggggtgcct aatgagtgag ctaactcaca ttaattgcgt tgcgctcact gcccgctttc
     3901 cagtcgggaa acctgtcgtg ccagctgcat taatgaatcg gccaacgcgc ggggagaggc
     3961 ggtttgcgta ttgggcgctc ttccgcttcc tcgctcactg actcgctgcg ctcggtcgtt
     4021 cggctgcggc gagcggtatc agctcactca aaggcggtaa tacggttatc cacagaatca
     4081 ggggataacg caggaaagaa catgtgagca aaaggccagc aaaaggccag gaaccgtaaa
     4141 aaggccgcgt tgctggcgtt tttccatagg ctccgccccc ctgacgagca tcacaaaaat
     4201 cgacgctcaa gtcagaggtg gcgaaacccg acaggactat aaagatacca ggcgtttccc
     4261 cctggaagct ccctcgtgcg ctctcctgtt ccgaccctgc cgcttaccgg atacctgtcc
     4321 gcctttctcc cttcgggaag cgtggcgctt tctcatagct cacgctgtag gtatctcagt
     4381 tcggtgtagg tcgttcgctc caagctgggc tgtgtgcacg aaccccccgt tcagcccgac
     4441 cgctgcgcct tatccggtaa ctatcgtctt gagtccaacc cggtaagaca cgacttatcg
     4501 ccactggcag cagccactgg taacaggatt agcagagcga ggtatgtagg cggtgctaca
     4561 gagttcttga agtggtggcc taactacggc tacactagaa gaacagtatt tggtatctgc
     4621 gctctgctga agccagttac cttcggaaaa agagttggta gctcttgatc cggcaaacaa
     4681 accaccgctg gtagcggtgg tttttttgtt tgcaagcagc agattacgcg cagaaaaaaa
     4741 ggatctcaag aagatccttt gatcttttct acggggtctg acgctcagtg gaacgaaaac
     4801 tcacgttaag ggattttggt catgagatta tcaaaaagga tcttcaccta gatcctttta
     4861 aattaaaaat gaagttttaa atcaatctaa agtatatatg agtaaacttg gtctgacagt
     4921 taccaatgct taatcagtga ggcacctatc tcagcgatct gtctatttcg ttcatccata
     4981 gttgcctgac tccccgtcgt gtagataact acgatacggg agggcttacc atctggcccc
     5041 agtgctgcaa tgataccgcg agacccacgc tcaccggctc cagatttatc agcaataaac
     5101 cagccagccg gaagggccga gcgcagaagt ggtcctgcaa ctttatccgc ctccatccag
     5161 tctattaatt gttgccggga agctagagta agtagttcgc cagttaatag tttgcgcaac
     5221 gttgttgcca ttgctacagg catcgtggtg tcacgctcgt cgtttggtat ggcttcattc
     5281 agctccggtt cccaacgatc aaggcgagtt acatgatccc ccatgttgtg caaaaaagcg
     5341 gttagctcct tcggtcctcc gatcgttgtc agaagtaagt tggccgcagt gttatcactc
     5401 atggttatgg cagcactgca taattctctt actgtcatgc catccgtaag atgcttttct
     5461 gtgactggtg agtactcaac caagtcattc tgagaatagt gtatgcggcg accgagttgc
     5521 tcttgcccgg cgtcaatacg ggataatacc gcgccacata gcagaacttt aaaagtgctc
     5581 atcattggaa aacgttcttc ggggcgaaaa ctctcaagga tcttaccgct gttgagatcc
     5641 agttcgatgt aacccactcg tgcacccaac tgatcttcag catcttttac tttcaccagc
     5701 gtttctgggt gagcaaaaac aggaaggcaa aatgccgcaa aaaagggaat aagggcgaca
     5761 cggaaatgtt gaatactcat actcttcctt tttcaatatt attgaagcat ttatcagggt
     5821 tattgtctca tgagcggata catatttgaa tgtatttaga aaaataaaca aataggggtt
     5881 ccgcgcacat ttccccgaaa agtgccacct
//
