LOCUS       sequence-348204-        6658 bp    DNA     circular SYN 15-DEC-2025
DEFINITION  Transient mammalian expression of codon optimized SARS-CoV-2 
            Nucleocapsid (D3L). Used for generating RNA packaging virus-like 
            particles..
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 6658)
  AUTHORS   Syed AM, Taha TY, Tabata T, Chen IP, Ciling A, Khalid MM, Sreekumar 
            B, Chen PY, Hayashi JM, Soczek KM, Ott M, Doudna JA
  TITLE     Rapid assessment of SARS-CoV-2 evolved variants using virus-like 
            particles.
  JOURNAL   Science. 2021 Nov 4:eabl6184. doi: 10.1126/science.abl6184.
  PUBMED    34735219
REFERENCE   2  (bases 1 to 6658)
  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: "Science. 
            2021 Nov 4:eabl6184. doi: 10.1126/science.abl6184."
COMMENT     Sequence Label: CoV2-N-D3L
FEATURES             Location/Qualifiers
     source          1..6658
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     enhancer        76..455
                     /label=CMV enhancer
                     /note="human cytomegalovirus immediate early enhancer"
     promoter        456..659
                     /label=CMV promoter
                     /note="human cytomegalovirus (CMV) immediate early 
                     promoter"
     primer_bind     610..630
                     /label=CMV-F
                     /note="Human CMV immediate early promoter, forward primer"
     primer_bind     704..723
                     /label=T7
                     /note="T7 promoter, forward primer"
     promoter        704..722
                     /label=T7 promoter
                     /note="promoter for bacteriophage T7 RNA polymerase"
     primer_bind     complement(2090..2107)
                     /label=BGH-rev
                     /note="Bovine growth hormone terminator, reverse primer. 
                     Also called BGH reverse"
     polyA_signal    2096..2320
                     /label=bGH poly(A) signal
                     /note="bovine growth hormone polyadenylation signal"
     rep_origin      2366..2794
                     /direction=RIGHT
                     /label=f1 ori
                     /note="f1 bacteriophage origin of replication; arrow 
                     indicates direction of (+) strand synthesis"
     primer_bind     complement(2453..2472)
                     /label=F1ori-R
                     /note="F1 origin, reverse primer"
     primer_bind     2663..2684
                     /label=F1ori-F
                     /note="F1 origin, forward primer"
     primer_bind     complement(2803..2823)
                     /label=pBABE 3'
                     /note="SV40 enhancer, reverse primer for pBABE vectors"
     promoter        2808..3137
                     /label=SV40 promoter
                     /note="SV40 enhancer and early promoter"
     rep_origin      2988..3123
                     /label=SV40 ori
                     /note="SV40 origin of replication"
     primer_bind     3050..3069
                     /label=SV40pro-F
                     /note="SV40 promoter/origin, forward primer"
     CDS             3204..3998
                     /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
                     GLAPAELFARLKARMPDGEDLVVTHGDACLPNIMVENGRFSGFIDCGRLGVADRYQDIA
                     LATRDIAEELGGEWADRFLVLYGIAAPDSQRIAFYRLLDEFF"
     primer_bind     complement(3258..3277)
                     /label=Neo-R
                     /note="Neomycin resistance gene, reverse primer"
     primer_bind     3868..3887
                     /label=Neo-F
                     /note="Neomycin resistance gene, forward primer"
     polyA_signal    4172..4293
                     /label=SV40 poly(A) signal
                     /note="SV40 polyadenylation signal"
     primer_bind     complement(4209..4228)
                     /label=SV40pA-R
                     /note="SV40 polyA, reverse primer"
     primer_bind     4263..4282
                     /label=EBV-rev
                     /note="SV40 polyA terminator, reverse primer"
     primer_bind     complement(4342..4358)
                     /label=M13 rev
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     primer_bind     complement(4342..4358)
                     /label=M13 Reverse
                     /note="In lacZ gene. Also called M13-rev"
     primer_bind     complement(4355..4377)
                     /label=M13/pUC Reverse
                     /note="In lacZ gene"
     protein_bind    4366..4382
                     /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(4390..4396,4397..4414,4415..4420))
                     /label=lac promoter
                     /note="promoter for the E. coli lac operon"
     protein_bind    4435..4456
                     /label=CAP binding site
                     /bound_moiety="E. coli catabolite activator protein"
                     /note="CAP binding activates transcription in the presence 
                     of cAMP."
     primer_bind     complement(4573..4590)
                     /label=L4440
                     /note="L4440 vector, forward primer"
     rep_origin      complement(4744..5332)
                     /direction=LEFT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     primer_bind     complement(4824..4843)
                     /label=pBR322ori-F
                     /note="pBR322 origin, forward primer"
     CDS             complement(join(5503..6294,6295..6363))
                     /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     6126..6145
                     /label=Amp-R
                     /note="Ampicillin resistance gene, reverse primer"
     promoter        complement(6364..6468)
                     /gene="bla"
                     /label=AmpR promoter
     primer_bind     complement(6543..6562)
                     /label=pRS-marker
                     /note="pRS vectors, use to sequence yeast selectable 
                     marker"
ORIGIN
        1 acaattgcat gaagaatctg cttagggtta ggcgttttgc gctgcttcgc gatgtacggg
       61 ccagatatac gcgttgacat tgattattga ctagttatta atagtaatca attacggggt
      121 cattagttca tagcccatat atggagttcc gcgttacata acttacggta aatggcccgc
      181 ctggctgacc gcccaacgac ccccgcccat tgacgtcaat aatgacgtat gttcccatag
      241 taacgccaat agggactttc cattgacgtc aatgggtgga gtatttacgg taaactgccc
      301 acttggcagt acatcaagtg tatcatatgc caagtacgcc ccctattgac gtcaatgacg
      361 gtaaatggcc cgcctggcat tatgcccagt acatgacctt atgggacttt cctacttggc
      421 agtacatcta cgtattagtc atcgctatta ccatggtgat gcggttttgg cagtacatca
      481 atgggcgtgg atagcggttt gactcacggg gatttccaag tctccacccc attgacgtca
      541 atgggagttt gttttggcac caaaatcaac gggactttcc aaaatgtcgt aacaactccg
      601 ccccattgac gcaaatgggc ggtaggcgtg tacggtggga ggtctatata agcagagctc
      661 tctggctaac tagagaaccc actgcttact ggcttatcga aattaatacg actcactata
      721 gggagaccca agctggctag ccttccattt caggtgtcgt gaggatctat ttccggtgaa
      781 ttcgccgcca ccatgagcct gaacggcccc caaaaccaac ggaatgcccc tcggataaca
      841 tttggtggcc ctagtgattc cacaggaagt aaccaaaacg gagaacggtc tggagcccgc
      901 tctaaacaga ggcgaccaca gggattgcca aataacacag cgtcatggtt tacagccctg
      961 actcaacatg gaaaggagga cttgaaattt ccacgaggac agggtgtacc aataaacaca
     1021 aacagtagtc cagacgatca gatcgggtat tatagaaggg ccacgagacg catcagaggt
     1081 ggagatggta aaatgaaaga tctcagtccg cgctggtact tttattattt gggaaccggc
     1141 ccagaagcgg gcctcccata tggagccaat aaggacggga ttatatgggt ggctacagag
     1201 ggagccctca atacgccaaa agatcacatc ggaacaagaa accctgctaa taatgccgca
     1261 atcgtgctgc agttgcctca ggggacgacg cttcctaaag gcttttacgc agaaggatca
     1321 cgcggcggca gccaagcatc ctcaaggtct agttccagaa gtcgaaacag ctccagaaac
     1381 tccacaccag ggtccagtag gggcacaagt ccggcgcgga tggcgggcaa cggcggagac
     1441 gccgcactcg ctctgttgct cctggaccgg ctcaaccaac ttgaatccaa gatgagtggt
     1501 aagggacagc agcaacaagg tcaaaccgta accaagaaaa gcgctgcaga agcttctaaa
     1561 aaacctcgac aaaaacggac cgctacgaag gcatataacg ttactcaagc cttcgggaga
     1621 cgagggccgg agcaaaccca ggggaatttt ggagatcagg agctcatccg gcaagggaca
     1681 gattacaaac attggcctca aatcgctcag ttcgcgccgt ccgcaagtgc ttttttcgga
     1741 atgtctcgca tcggtatgga agtaacacca tccgggacat ggctcactta taccggcgcc
     1801 atcaagctgg acgacaaaga tccaaatttc aaagatcagg tgattctctt gaataaacac
     1861 atagacgcgt ataagacgtt tccacccacc gaacccaaga aggacaaaaa gaaaaaagct
     1921 gatgaaacac aagcgttgcc ccagcgacag aagaagcagc aaaccgtcac cctcctgcca
     1981 gccgctgatc tcgatgactt ctccaagcaa cttcaacagt ccatgagctc agccgattct
     2041 actcaggcgt aactcgagtc tagagggccc gtttaaaccc gctgatcagc ctcgactgtg
     2101 ccttctagtt gccagccatc tgttgtttgc ccctcccccg tgccttcctt gaccctggaa
     2161 ggtgccactc ccactgtcct ttcctaataa aatgaggaaa ttgcatcgca ttgtctgagt
     2221 aggtgtcatt ctattctggg gggtggggtg gggcaggaca gcaaggggga ggattgggaa
     2281 gacaatagca ggcatgctgg ggatgcggtg ggctctatgg cttctgaggc ggaaagaacc
     2341 agctggggct ctagggggta tccccacgcg ccctgtagcg gcgcattaag cgcggcgggt
     2401 gtggtggtta cgcgcagcgt gaccgctaca cttgccagcg ccctagcgcc cgctcctttc
     2461 gctttcttcc cttcctttct cgccacgttc gccggctttc cccgtcaagc tctaaatcgg
     2521 gggctccctt tagggttccg atttagtgct ttacggcacc tcgaccccaa aaaacttgat
     2581 tagggtgatg gttcacgtag tgggccatcg ccctgataga cggtttttcg ccctttgacg
     2641 ttggagtcca cgttctttaa tagtggactc ttgttccaaa ctggaacaac actcaaccct
     2701 atctcggtct attcttttga tttataaggg attttgccga tttcggccta ttggttaaaa
     2761 aatgagctga tttaacaaaa atttaacgcg aattaattct gtggaatgtg tgtcagttag
     2821 ggtgtggaaa gtccccaggc tccccagcag gcagaagtat gcaaagcatg catctcaatt
     2881 agtcagcaac caggtgtgga aagtccccag gctccccagc aggcagaagt atgcaaagca
     2941 tgcatctcaa ttagtcagca accatagtcc cgcccctaac tccgcccatc ccgcccctaa
     3001 ctccgcccag ttccgcccat tctccgcccc atggctgact aatttttttt atttatgcag
     3061 aggccgaggc cgcctctgcc tctgagctat tccagaagta gtgaggaggc ttttttggag
     3121 gcctaggctt ttgcaaaaag ctcccgggag cttgtatatc cattttcgga tctgatcaag
     3181 agacaggatg aggatcgttt cgcatgattg aacaagatgg attgcacgca ggttctccgg
     3241 ccgcttgggt ggagaggcta ttcggctatg actgggcaca acagacaatc ggctgctctg
     3301 atgccgccgt gttccggctg tcagcgcagg ggcgcccggt tctttttgtc aagaccgacc
     3361 tgtccggtgc cctgaatgaa ctgcaggacg aggcagcgcg gctatcgtgg ctggccacga
     3421 cgggcgttcc ttgcgcagct gtgctcgacg ttgtcactga agcgggaagg gactggctgc
     3481 tattgggcga agtgccgggg caggatctcc tgtcatctca ccttgctcct gccgagaaag
     3541 tatccatcat ggctgatgca atgcggcggc tgcatacgct tgatccggct acctgcccat
     3601 tcgaccacca agcgaaacat cgcatcgagc gagcacgtac tcggatggaa gccggtcttg
     3661 tcgatcagga tgatctggac gaagagcatc aggggctcgc gccagccgaa ctgttcgcca
     3721 ggctcaaggc gcgcatgccc gacggcgagg atctcgtcgt gacccatggc gatgcctgct
     3781 tgccgaatat catggtggaa aatggccgct tttctggatt catcgactgt ggccggctgg
     3841 gtgtggcgga ccgctatcag gacatagcgt tggctacccg tgatattgct gaagagcttg
     3901 gcggcgaatg ggctgaccgc ttcctcgtgc tttacggtat cgccgctccc gattcgcagc
     3961 gcatcgcctt ctatcgcctt cttgacgagt tcttctgagc gggactctgg ggttcgaaat
     4021 gaccgaccaa gcgacgccca acctgccatc acgagatttc gattccaccg ccgccttcta
     4081 tgaaaggttg ggcttcggaa tcgttttccg ggacgccggc tggatgatcc tccagcgcgg
     4141 ggatctcatg ctggagttct tcgcccaccc caacttgttt attgcagctt ataatggtta
     4201 caaataaagc aatagcatca caaatttcac aaataaagca tttttttcac tgcattctag
     4261 ttgtggtttg tccaaactca tcaatgtatc ttatcatgtc tgtataccgt cgacctctag
     4321 ctagagcttg gcgtaatcat ggtcatagct gtttcctgtg tgaaattgtt atccgctcac
     4381 aattccacac aacatacgag ccggaagcat aaagtgtaaa gcctggggtg cctaatgagt
     4441 gagctaactc acattaattg cgttgcgctc actgcccgct ttccagtcgg gaaacctgtc
     4501 gtgccagctg cattaatgaa tcggccaacg cgcggggaga ggcggtttgc gtattgggcg
     4561 ctcttccgct tcctcgctca ctgactcgct gcgctcggtc gttcggctgc ggcgagcggt
     4621 atcagctcac tcaaaggcgg taatacggtt atccacagaa tcaggggata acgcaggaaa
     4681 gaacatgtga gcaaaaggcc agcaaaaggc caggaaccgt aaaaaggccg cgttgctggc
     4741 gtttttccat aggctccgcc cccctgacga gcatcacaaa aatcgacgct caagtcagag
     4801 gtggcgaaac ccgacaggac tataaagata ccaggcgttt ccccctggaa gctccctcgt
     4861 gcgctctcct gttccgaccc tgccgcttac cggatacctg tccgcctttc tcccttcggg
     4921 aagcgtggcg ctttctcata gctcacgctg taggtatctc agttcggtgt aggtcgttcg
     4981 ctccaagctg ggctgtgtgc acgaaccccc cgttcagccc gaccgctgcg ccttatccgg
     5041 taactatcgt cttgagtcca acccggtaag acacgactta tcgccactgg cagcagccac
     5101 tggtaacagg attagcagag cgaggtatgt aggcggtgct acagagttct tgaagtggtg
     5161 gcctaactac ggctacacta gaagaacagt atttggtatc tgcgctctgc tgaagccagt
     5221 taccttcgga aaaagagttg gtagctcttg atccggcaaa caaaccaccg ctggtagcgg
     5281 tggttttttt gtttgcaagc agcagattac gcgcagaaaa aaaggatctc aagaagatcc
     5341 tttgatcttt tctacggggt ctgacgctca gtggaacgaa aactcacgtt aagggatttt
     5401 ggtcatgaga ttatcaaaaa ggatcttcac ctagatcctt ttaaattaaa aatgaagttt
     5461 taaatcaatc taaagtatat atgagtaaac ttggtctgac agttaccaat gcttaatcag
     5521 tgaggcacct atctcagcga tctgtctatt tcgttcatcc atagttgcct gactccccgt
     5581 cgtgtagata actacgatac gggagggctt accatctggc cccagtgctg caatgatacc
     5641 gcgagaccca cgctcaccgg ctccagattt atcagcaata aaccagccag ccggaagggc
     5701 cgagcgcaga agtggtcctg caactttatc cgcctccatc cagtctatta attgttgccg
     5761 ggaagctaga gtaagtagtt cgccagttaa tagtttgcgc aacgttgttg ccattgctac
     5821 aggcatcgtg gtgtcacgct cgtcgtttgg tatggcttca ttcagctccg gttcccaacg
     5881 atcaaggcga gttacatgat cccccatgtt gtgcaaaaaa gcggttagct ccttcggtcc
     5941 tccgatcgtt gtcagaagta agttggccgc agtgttatca ctcatggtta tggcagcact
     6001 gcataattct cttactgtca tgccatccgt aagatgcttt tctgtgactg gtgagtactc
     6061 aaccaagtca ttctgagaat agtgtatgcg gcgaccgagt tgctcttgcc cggcgtcaat
     6121 acgggataat accgcgccac atagcagaac tttaaaagtg ctcatcattg gaaaacgttc
     6181 ttcggggcga aaactctcaa ggatcttacc gctgttgaga tccagttcga tgtaacccac
     6241 tcgtgcaccc aactgatctt cagcatcttt tactttcacc agcgtttctg ggtgagcaaa
     6301 aacaggaagg caaaatgccg caaaaaaggg aataagggcg acacggaaat gttgaatact
     6361 catactcttc ctttttcaat attattgaag catttatcag ggttattgtc tcatgagcgg
     6421 atacatattt gaatgtattt agaaaaataa acaaataggg gttccgcgca catttccccg
     6481 aaaagtgcca cctgacgtcg acggatcggg agatctcccg atcccctatg gtgcactctc
     6541 agtacaatct gctctgatgc cgcatagtta agccagtatc tgctccctgc ttgtgtgttg
     6601 gaggtcgctg agtagtgcgc gagcaaaatt taagctacaa caaggcaagg cttgaccg
//
