LOCUS       sequence-345115-        5178 bp    DNA     circular SYN 15-DEC-2025
DEFINITION  Mammalian expression of green fluorescent potassium indicator 
            KRaION1.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5178)
  AUTHORS   Torres Caban CC, Yang M, Lai C, Yang L, Subach FV, Smith BO, 
            Piatkevich KD, Boyden ES
  TITLE     Tuning the Sensitivity of Genetically Encoded Fluorescent Potassium 
            Indicators through Structure-Guided and Genome Mining Strategies.
  JOURNAL   ACS Sens. 2022 May 27;7(5):1336-1346. doi: 
            10.1021/acssensors.1c02201. Epub 2022 Apr 15.
  PUBMED    35427452
REFERENCE   2  (bases 1 to 5178)
  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"; doi: 
            "10.1021/acssensors.1c02201"; journalName: "ACS Sens"; date: 
            "2022-05-27- 27"; volume: "7"; issue: "5"; pages: "1336-1346"
COMMENT     Sequence Label: pKRaION1-N1
FEATURES             Location/Qualifiers
     source          1..5178
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     enhancer        61..364
                     /label=CMV enhancer
                     /note="human cytomegalovirus immediate early enhancer"
     promoter        365..568
                     /label=CMV promoter
                     /note="human cytomegalovirus (CMV) immediate early 
                     promoter"
     primer_bind     519..539
                     /label=CMV-F
                     /note="Human CMV immediate early promoter, forward primer"
     misc_feature    591..671
                     /label=MCS
                     /note="multiple cloning site"
     polyA_signal    1966..2087
                     /label=SV40 poly(A) signal
                     /note="SV40 polyadenylation signal"
     primer_bind     complement(2003..2022)
                     /label=SV40pA-R
                     /note="SV40 polyA, reverse primer"
     primer_bind     2057..2076
                     /label=EBV-rev
                     /note="SV40 polyA terminator, reverse primer"
     rep_origin      complement(2094..2549)
                     /direction=LEFT
                     /label=f1 ori
                     /note="f1 bacteriophage origin of replication; arrow 
                     indicates direction of (+) strand synthesis"
     primer_bind     complement(2231..2252)
                     /label=F1ori-F
                     /note="F1 origin, forward primer"
     primer_bind     2443..2462
                     /label=F1ori-R
                     /note="F1 origin, reverse primer"
     promoter        2576..2680
                     /gene="bla"
                     /label=AmpR promoter
     promoter        2682..3039
                     /label=SV40 promoter
                     /note="SV40 enhancer and early promoter"
     enhancer        2682..2873
                     /label=SV40 enhancer
                     /note="enhancer for the SV40 early promoter (Herr, 1993)"
     primer_bind     complement(2705..2725)
                     /label=pBABE 3'
                     /note="SV40 enhancer, reverse primer for pBABE vectors"
     rep_origin      2890..3025
                     /label=SV40 ori
                     /note="SV40 origin of replication"
     CDS             3074..3868
                     /codon_start=1
                     /product="aminoglycoside phosphotransferase"
                     /label=NeoR/KanR
                     /note="confers resistance to neomycin, kanamycin, and G418 
                     (Geneticin(R))"
                     /translation="MIEQDGLHAGSPAAWVERLFGYDWAQQTIGCSDAAVFRLSAQGRP
                     VLFVKTDLSGALNELQDEAARLSWLATTGVPCAAVLDVVTEAGRDWLLLGEVPGQDLLS
                     SHLAPAEKVSIMADAMRRLHTLDPATCPFDHQAKHRIERARTRMEAGLVDQDDLDEEHQ
                     GLAPAELFARLKASMPDGEDLVVTHGDACLPNIMVENGRFSGFIDCGRLGVADRYQDIA
                     LATRDIAEELGGEWADRFLVLYGIAAPDSQRIAFYRLLDEFF"
     CDS             3074..3868
                     /codon_start=1
                     /gene="aph(3')-II (or nptII)"
                     /product="aminoglycoside phosphotransferase from Tn5"
                     /label=NeoR/KanR
                     /note="confers resistance to neomycin, kanamycin, and G418 
                     (Geneticin(R))"
                     /translation="MIEQDGLHAGSPAAWVERLFGYDWAQQTIGCSDAAVFRLSAQGRP
                     VLFVKTDLSGALNELQDEAARLSWLATTGVPCAAVLDVVTEAGRDWLLLGEVPGQDLLS
                     SHLAPAEKVSIMADAMRRLHTLDPATCPFDHQAKHRIERARTRMEAGLVDQDDLDEEHQ
                     GLAPAELFARLKASMPDGEDLVVTHGDACLPNIMVENGRFSGFIDCGRLGVADRYQDIA
                     LATRDIAEELGGEWADRFLVLYGIAAPDSQRIAFYRLLDEFF"
     primer_bind     complement(3128..3147)
                     /label=Neo-R
                     /note="Neomycin resistance gene, reverse primer"
     primer_bind     3738..3757
                     /label=Neo-F
                     /note="Neomycin resistance gene, forward primer"
     primer_bind     complement(4056..4075)
                     /label=TK-pA-R
                     /note="Thymidine kinase polyA, reverse primer"
     polyA_signal    4100..4147
                     /label=HSV TK poly(A) signal
                     /note="herpes simplex virus thymidine kinase 
                     polyadenylation signal (Cole and Stacy, 1985)"
     rep_origin      4476..5064
                     /direction=RIGHT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     primer_bind     4965..4984
                     /label=pBR322ori-F
                     /note="pBR322 origin, forward primer"
ORIGIN
        1 tagttattaa tagtaatcaa ttacggggtc attagttcat agcccatata tggagttccg
       61 cgttacataa cttacggtaa atggcccgcc tggctgaccg cccaacgacc cccgcccatt
      121 gacgtcaata atgacgtatg ttcccatagt aacgccaata gggactttcc attgacgtca
      181 atgggtggag tatttacggt aaactgccca cttggcagta catcaagtgt atcatatgcc
      241 aagtacgccc cctattgacg tcaatgacgg taaatggccc gcctggcatt atgcccagta
      301 catgacctta tgggactttc ctacttggca gtacatctac gtattagtca tcgctattac
      361 catggtgatg cggttttggc agtacatcaa tgggcgtgga tagcggtttg actcacgggg
      421 atttccaagt ctccacccca ttgacgtcaa tgggagtttg ttttggcacc aaaatcaacg
      481 ggactttcca aaatgtcgta acaactccgc cccattgacg caaatgggcg gtaggcgtgt
      541 acggtgggag gtctatataa gcagagctgg tttagtgaac cgtcagatcc gctagcgcta
      601 ccggactcag atctcgagct caagcttcga attctgcagt cgacggtacc gcgggcccgg
      661 gatccaccgg tatggtctca aagggagagg aggaaaacat ggctagtctg cctgctaccc
      721 acgaactgca tatttttggc tccataaatg gcatcgattt cgacatggta ggccaaggca
      781 ccggtaatcc aaacgacggc tatgaggagc tgaacctgaa gtccaccatg ggcgatctgc
      841 agttcagtcc ctggatcctg gtgccgcaca ttgggtacgg gtttcaccag tatcttccct
      901 atccagacgg gatgtcacca tttcaggctg caatggtcga cgggtccgga taccaagtgc
      961 accgcactat gcagtttgag gacggtgcct cactgaccgt gaattacaga tacacctacg
     1021 aaggatcaca tatcaaaggg gaagctcagg tggagggcac tgggttccca gctgacggcc
     1081 ctgtgatgac aaattccctg acagccgagg cccacggcct gttcaacttc gtgaaggacg
     1141 ccggcgagaa gctgtgggat gccgtgacag gccagcacga caaggacgac caggccaaga
     1201 aggtgcagga acacctgaac aagaccggca tccccgacgc cgacaaagtg aacatccaga
     1261 tcgccgacgg caaggccaca gtgacaggcg acggactgag ccaggaagcc aaagaaaaga
     1321 tcctggtggc cgtgggcaac atcagcggaa tcgccagcgt ggacgatcaa gtgaaaaccg
     1381 ccacccctgc caccgccagc cagttctaca cagtgaagtc cggcgacacc ctgagcgcca
     1441 tcagcaaaca ggtgtacggc aacgccaacc tgtacaacaa gattttcgag gccaacaagc
     1501 ccatgctgaa gtcccccgac aaaatctacc ccggccaggt gctgagaatc cccgaggaaa
     1561 tgtacttcgc tgactggtgc gtatccaaga agacttgccc caatgataag actatcgtct
     1621 ccacatttaa gtgggctttt atcaccgaca acggcaaacg ctaccggtct accgctcgca
     1681 ccacatacac attcgccaag ccaatggccg caaattacct caaaaatcag ccgatgtatg
     1741 tctttcggaa aacagagctg aaacattcta agaccgaact gaattttaaa gagtggcaaa
     1801 aggcctttac ggacgtgatg ggcatggacg agctgtataa gtaagcggcc gcgactctag
     1861 atcataatca gccataccac atttgtagag gttttacttg ctttaaaaaa cctcccacac
     1921 ctccccctga acctgaaaca taaaatgaat gcaattgttg ttgttaactt gtttattgca
     1981 gcttataatg gttacaaata aagcaatagc atcacaaatt tcacaaataa agcatttttt
     2041 tcactgcatt ctagttgtgg tttgtccaaa ctcatcaatg tatcttaagg cgtaaattgt
     2101 aagcgttaat attttgttaa aattcgcgtt aaatttttgt taaatcagct cattttttaa
     2161 ccaataggcc gaaatcggca aaatccctta taaatcaaaa gaatagaccg agatagggtt
     2221 gagtgttgtt ccagtttgga acaagagtcc actattaaag aacgtggact ccaacgtcaa
     2281 agggcgaaaa accgtctatc agggcgatgg cccactacgt gaaccatcac cctaatcaag
     2341 ttttttgggg tcgaggtgcc gtaaagcact aaatcggaac cctaaaggga gcccccgatt
     2401 tagagcttga cggggaaagc cggcgaacgt ggcgagaaag gaagggaaga aagcgaaagg
     2461 agcgggcgct agggcgctgg caagtgtagc ggtcacgctg cgcgtaacca ccacacccgc
     2521 cgcgcttaat gcgccgctac agggcgcgtc aggtggcact tttcggggaa atgtgcgcgg
     2581 aacccctatt tgtttatttt tctaaataca ttcaaatatg tatccgctca tgagacaata
     2641 accctgataa atgcttcaat aatattgaaa aaggaagagt cctgaggcgg aaagaaccag
     2701 ctgtggaatg tgtgtcagtt agggtgtgga aagtccccag gctccccagc aggcagaagt
     2761 atgcaaagca tgcatctcaa ttagtcagca accaggtgtg gaaagtcccc aggctcccca
     2821 gcaggcagaa gtatgcaaag catgcatctc aattagtcag caaccatagt cccgccccta
     2881 actccgccca tcccgcccct aactccgccc agttccgccc attctccgcc ccatggctga
     2941 ctaatttttt ttatttatgc agaggccgag gccgcctcgg cctctgagct attccagaag
     3001 tagtgaggag gcttttttgg aggcctaggc ttttgcaaag atcgatcaag agacaggatg
     3061 aggatcgttt cgcatgattg aacaagatgg attgcacgca ggttctccgg ccgcttgggt
     3121 ggagaggcta ttcggctatg actgggcaca acagacaatc ggctgctctg atgccgccgt
     3181 gttccggctg tcagcgcagg ggcgcccggt tctttttgtc aagaccgacc tgtccggtgc
     3241 cctgaatgaa ctgcaagacg aggcagcgcg gctatcgtgg ctggccacga cgggcgttcc
     3301 ttgcgcagct gtgctcgacg ttgtcactga agcgggaagg gactggctgc tattgggcga
     3361 agtgccgggg caggatctcc tgtcatctca ccttgctcct gccgagaaag tatccatcat
     3421 ggctgatgca atgcggcggc tgcatacgct tgatccggct acctgcccat tcgaccacca
     3481 agcgaaacat cgcatcgagc gagcacgtac tcggatggaa gccggtcttg tcgatcagga
     3541 tgatctggac gaagagcatc aggggctcgc gccagccgaa ctgttcgcca ggctcaaggc
     3601 gagcatgccc gacggcgagg atctcgtcgt gacccatggc gatgcctgct tgccgaatat
     3661 catggtggaa aatggccgct tttctggatt catcgactgt ggccggctgg gtgtggcgga
     3721 ccgctatcag gacatagcgt tggctacccg tgatattgct gaagagcttg gcggcgaatg
     3781 ggctgaccgc ttcctcgtgc tttacggtat cgccgctccc gattcgcagc gcatcgcctt
     3841 ctatcgcctt cttgacgagt tcttctgagc gggactctgg ggttcgaaat gaccgaccaa
     3901 gcgacgccca acctgccatc acgagatttc gattccaccg ccgccttcta tgaaaggttg
     3961 ggcttcggaa tcgttttccg ggacgccggc tggatgatcc tccagcgcgg ggatctcatg
     4021 ctggagttct tcgcccaccc tagggggagg ctaactgaaa cacggaagga gacaataccg
     4081 gaaggaaccc gcgctatgac ggcaataaaa agacagaata aaacgcacgg tgttgggtcg
     4141 tttgttcata aacgcggggt tcggtcccag ggctggcact ctgtcgatac cccaccgaga
     4201 ccccattggg gccaatacgc ccgcgtttct tccttttccc caccccaccc cccaagttcg
     4261 ggtgaaggcc cagggctcgc agccaacgtc ggggcggcag gccctgccat agcctcaggt
     4321 tactcatata tactttagat tgatttaaaa cttcattttt aatttaaaag gatctaggtg
     4381 aagatccttt ttgataatct catgaccaaa atcccttaac gtgagttttc gttccactga
     4441 gcgtcagacc ccgtagaaaa gatcaaagga tcttcttgag atcctttttt tctgcgcgta
     4501 atctgctgct tgcaaacaaa aaaaccaccg ctaccagcgg tggtttgttt gccggatcaa
     4561 gagctaccaa ctctttttcc gaaggtaact ggcttcagca gagcgcagat accaaatact
     4621 gttcttctag tgtagccgta gttaggccac cacttcaaga actctgtagc accgcctaca
     4681 tacctcgctc tgctaatcct gttaccagtg gctgctgcca gtggcgataa gtcgtgtctt
     4741 accgggttgg actcaagacg atagttaccg gataaggcgc agcggtcggg ctgaacgggg
     4801 ggttcgtgca cacagcccag cttggagcga acgacctaca ccgaactgag atacctacag
     4861 cgtgagctat gagaaagcgc cacgcttccc gaagggagaa aggcggacag gtatccggta
     4921 agcggcaggg tcggaacagg agagcgcacg agggagcttc cagggggaaa cgcctggtat
     4981 ctttatagtc ctgtcgggtt tcgccacctc tgacttgagc gtcgattttt gtgatgctcg
     5041 tcaggggggc ggagcctatg gaaaaacgcc agcaacgcgg cctttttacg gttcctggcc
     5101 ttttgctggc cttttgctca catgttcttt cctgcgttat cccctgattc tgtggataac
     5161 cgtattaccg ccatgcat
//
