LOCUS       sequence-388125-        5316 bp    DNA     circular SYN 15-DEC-2025
DEFINITION  Expresses the fusion protein of H2B-iRFP670 in mammalian cells.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5316)
  AUTHORS   Zhang H, Papadaki S, Sun X, Wang X, Drobizhev M, Yao L, Rehbock M, 
            Koster RW, Wu L, Namikawa K, Piatkevich KD
  TITLE     Quantitative assessment of near-infrared fluorescent proteins.
  JOURNAL   Nat Methods. 2023 Sep 4. doi: 10.1038/s41592-023-01975-z.
  PUBMED    37666982
REFERENCE   2  (bases 1 to 5316)
  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: "Nat 
            Methods. 2023 Sep 4. doi: 10.1038/s41592-023-01975-z."
COMMENT     Sequence Label: pH2B-iRFP670-N1
FEATURES             Location/Qualifiers
     source          1..5316
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     enhancer        68..371
                     /label=CMV enhancer
                     /note="human cytomegalovirus immediate early enhancer"
     promoter        372..575
                     /label=CMV promoter
                     /note="human cytomegalovirus (CMV) immediate early 
                     promoter"
     primer_bind     526..546
                     /label=CMV-F
                     /note="Human CMV immediate early promoter, forward primer"
     CDS             664..1041
                     /codon_start=1
                     /gene="HIST1H2BJ"
                     /product="human histone H2B"
                     /label=H2B
                     /translation="MPEPAKSAPAPKKGSKKAVTKAQKKGGKKRKRSRKESYSIYVYKV
                     LKQVHPDTGISSKAMGIMNSFVNDIFERIAGEASRLAHYNKRSTITSREIQTAVRLLLP
                     GELAKHAVSEGTKAITKYTSAK"
     CDS             1054..1989
                     /codon_start=1
                     /product="near-infrared fluorescent protein with an 
                     emission peak at 670 nm, engineered from a bacterial 
                     phytochrome (Shcherbakova and Verkhusha, 2013)"
                     /label=iRFP670
                     /note="derived from Rhodopseudomonas palustris RpBphP6"
                     /translation="MARKVDLTSCDREPIHIPGSIQPCGCLLACDAQAVRITRITENAG
                     AFFGRETPRVGELLADYFGETEAHALRNALAQSSDPKRPALIFGWRDGLTGRTFDISLH
                     RHDGTSIIEFEPAAAEQADNPLRLTRQIIARTKELKSLEEMAARVPRYLQAMLGYHRVM
                     LYRFADDGSGMVIGEAKRSDLESFLGQHFPASLVPQQARLLYLKNAIRVVSDSRGISSR
                     IVPEHDASGAALDLSFAHLRSISPCHLEFLRNMGVSASMSLSIIIDGTLWGLIICHHYE
                     PRAVPMAQRVAAEMFADFLSLHFTAAHHQR"
     polyA_signal    2111..2232
                     /label=SV40 poly(A) signal
                     /note="SV40 polyadenylation signal"
     primer_bind     complement(2148..2167)
                     /label=SV40pA-R
                     /note="SV40 polyA, reverse primer"
     primer_bind     2202..2221
                     /label=EBV-rev
                     /note="SV40 polyA terminator, reverse primer"
     rep_origin      complement(2239..2694)
                     /direction=LEFT
                     /label=f1 ori
                     /note="f1 bacteriophage origin of replication; arrow 
                     indicates direction of (+) strand synthesis"
     primer_bind     complement(2376..2397)
                     /label=F1ori-F
                     /note="F1 origin, forward primer"
     primer_bind     2588..2607
                     /label=F1ori-R
                     /note="F1 origin, reverse primer"
     promoter        2721..2825
                     /gene="bla"
                     /label=AmpR promoter
     promoter        2827..3184
                     /label=SV40 promoter
                     /note="SV40 enhancer and early promoter"
     enhancer        2827..3018
                     /label=SV40 enhancer
                     /note="enhancer for the SV40 early promoter (Herr, 1993)"
     primer_bind     complement(2850..2870)
                     /label=pBABE 3'
                     /note="SV40 enhancer, reverse primer for pBABE vectors"
     rep_origin      3035..3170
                     /label=SV40 ori
                     /note="SV40 origin of replication"
     CDS             3219..4013
                     /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             3219..4013
                     /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(3273..3292)
                     /label=Neo-R
                     /note="Neomycin resistance gene, reverse primer"
     primer_bind     3883..3902
                     /label=Neo-F
                     /note="Neomycin resistance gene, forward primer"
     primer_bind     complement(4201..4220)
                     /label=TK-pA-R
                     /note="Thymidine kinase polyA, reverse primer"
     polyA_signal    4245..4292
                     /label=HSV TK poly(A) signal
                     /note="herpes simplex virus thymidine kinase 
                     polyadenylation signal (Cole and Stacy, 1985)"
     rep_origin      4621..5209
                     /direction=RIGHT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     primer_bind     5110..5129
                     /label=pBR322ori-F
                     /note="pBR322 origin, forward primer"
ORIGIN
        1 catgcattag ttattaatag taatcaatta cggggtcatt agttcatagc ccatatatgg
       61 agttccgcgt tacataactt acggtaaatg gcccgcctgg ctgaccgccc aacgaccccc
      121 gcccattgac gtcaataatg acgtatgttc ccatagtaac gccaataggg actttccatt
      181 gacgtcaatg ggtggagtat ttacggtaaa ctgcccactt ggcagtacat caagtgtatc
      241 atatgccaag tacgccccct attgacgtca atgacggtaa atggcccgcc tggcattatg
      301 cccagtacat gaccttatgg gactttccta cttggcagta catctacgta ttagtcatcg
      361 ctattaccat ggtgatgcgg ttttggcagt acatcaatgg gcgtggatag cggtttgact
      421 cacggggatt tccaagtctc caccccattg acgtcaatgg gagtttgttt tggcaccaaa
      481 atcaacggga ctttccaaaa tgtcgtaaca actccgcccc attgacgcaa atgggcggta
      541 ggcgtgtacg gtgggaggtc tatataagca gagctggttt agtgaaccgt cagatccgct
      601 agcgctaccg gactcagatc tcgagctcaa gcttcgaatt ctgcagtcga cggtaccgcc
      661 accatgccag agccagcgaa gtctgctccc gccccgaaaa agggctccaa gaaggcggtg
      721 actaaggcgc agaagaaagg cggcaagaag cgcaagcgca gccgcaagga gagctattcc
      781 atctatgtgt acaaggttct gaagcaggtc caccctgaca ccggcatttc gtccaaggcc
      841 atgggcatca tgaattcgtt tgtgaacgac attttcgagc gcatcgcagg tgaggcttcc
      901 cgcctggcgc attacaacaa gcgctcgacc atcacctcca gggagatcca gacggccgtg
      961 cgcctgctgc tgcctgggga gttggccaag cacgccgtgt ccgagggtac taaggccatc
     1021 accaagtaca ccagcgctaa ggatccaccg gtcatggcgc gtaaggtcga tctcacctcc
     1081 tgcgatcgcg agccgatcca catccccggc agcattcagc cgtgcggctg cctgctagcc
     1141 tgcgacgcgc aggcggtgcg gatcacgcgc attacggaaa atgccggcgc gttctttgga
     1201 cgcgaaactc cgcgggtcgg tgagctactc gccgattact tcggcgagac cgaagcccat
     1261 gcgctgcgca acgcactggc gcagtcctcc gatccaaagc gaccggcgct gatcttcggt
     1321 tggcgcgacg gcctgaccgg ccgcaccttc gacatctcac tgcatcgcca tgacggtaca
     1381 tcgatcatcg agttcgagcc tgcggcggcc gaacaggccg acaatccgct gcggctgacg
     1441 cggcagatca tcgcgcgcac caaagaactg aagtcgctcg aagagatggc cgcacgggtg
     1501 ccgcgctatc tgcaggcgat gctcggctat caccgcgtga tgttgtaccg cttcgcggac
     1561 gacggctccg ggatggtgat cggcgaggcg aagcgcagcg acctcgagag ctttctcggt
     1621 cagcactttc cggcgtcgct ggtcccgcag caggcgcggc tactgtactt gaagaacgcg
     1681 atccgcgtgg tctcggattc gcgcggcatc agcagccgga tcgtgcccga gcacgacgcc
     1741 tccggcgccg cgctcgatct gtcgttcgcg cacctgcgca gcatctcgcc ctgccatctc
     1801 gaatttctgc ggaacatggg cgtcagcgcc tcgatgtcgc tgtcgatcat cattgacggc
     1861 acgctatggg gattgatcat ctgtcatcat tacgagccgc gtgccgtgcc gatggcgcag
     1921 cgcgtcgcgg ccgaaatgtt cgccgacttc ttatcgctgc acttcaccgc cgcccaccac
     1981 caacgctagg cggccgcgac tctagatcat aatcagccat accacatttg tagaggtttt
     2041 acttgcttta aaaaacctcc cacacctccc cctgaacctg aaacataaaa tgaatgcaat
     2101 tgttgttgtt aacttgttta ttgcagctta taatggttac aaataaagca atagcatcac
     2161 aaatttcaca aataaagcat ttttttcact gcattctagt tgtggtttgt ccaaactcat
     2221 caatgtatct taaggcgtaa attgtaagcg ttaatatttt gttaaaattc gcgttaaatt
     2281 tttgttaaat cagctcattt tttaaccaat aggccgaaat cggcaaaatc ccttataaat
     2341 caaaagaata gaccgagata gggttgagtg ttgttccagt ttggaacaag agtccactat
     2401 taaagaacgt ggactccaac gtcaaagggc gaaaaaccgt ctatcagggc gatggcccac
     2461 tacgtgaacc atcaccctaa tcaagttttt tggggtcgag gtgccgtaaa gcactaaatc
     2521 ggaaccctaa agggagcccc cgatttagag cttgacgggg aaagccggcg aacgtggcga
     2581 gaaaggaagg gaagaaagcg aaaggagcgg gcgctagggc gctggcaagt gtagcggtca
     2641 cgctgcgcgt aaccaccaca cccgccgcgc ttaatgcgcc gctacagggc gcgtcaggtg
     2701 gcacttttcg gggaaatgtg cgcggaaccc ctatttgttt atttttctaa atacattcaa
     2761 atatgtatcc gctcatgaga caataaccct gataaatgct tcaataatat tgaaaaagga
     2821 agagtcctga ggcggaaaga accagctgtg gaatgtgtgt cagttagggt gtggaaagtc
     2881 cccaggctcc ccagcaggca gaagtatgca aagcatgcat ctcaattagt cagcaaccag
     2941 gtgtggaaag tccccaggct ccccagcagg cagaagtatg caaagcatgc atctcaatta
     3001 gtcagcaacc atagtcccgc ccctaactcc gcccatcccg cccctaactc cgcccagttc
     3061 cgcccattct ccgccccatg gctgactaat tttttttatt tatgcagagg ccgaggccgc
     3121 ctcggcctct gagctattcc agaagtagtg aggaggcttt tttggaggcc taggcttttg
     3181 caaagatcga tcaagagaca ggatgaggat cgtttcgcat gattgaacaa gatggattgc
     3241 acgcaggttc tccggccgct tgggtggaga ggctattcgg ctatgactgg gcacaacaga
     3301 caatcggctg ctctgatgcc gccgtgttcc ggctgtcagc gcaggggcgc ccggttcttt
     3361 ttgtcaagac cgacctgtcc ggtgccctga atgaactgca agacgaggca gcgcggctat
     3421 cgtggctggc cacgacgggc gttccttgcg cagctgtgct cgacgttgtc actgaagcgg
     3481 gaagggactg gctgctattg ggcgaagtgc cggggcagga tctcctgtca tctcaccttg
     3541 ctcctgccga gaaagtatcc atcatggctg atgcaatgcg gcggctgcat acgcttgatc
     3601 cggctacctg cccattcgac caccaagcga aacatcgcat cgagcgagca cgtactcgga
     3661 tggaagccgg tcttgtcgat caggatgatc tggacgaaga gcatcagggg ctcgcgccag
     3721 ccgaactgtt cgccaggctc aaggcgagca tgcccgacgg cgaggatctc gtcgtgaccc
     3781 atggcgatgc ctgcttgccg aatatcatgg tggaaaatgg ccgcttttct ggattcatcg
     3841 actgtggccg gctgggtgtg gcggaccgct atcaggacat agcgttggct acccgtgata
     3901 ttgctgaaga gcttggcggc gaatgggctg accgcttcct cgtgctttac ggtatcgccg
     3961 ctcccgattc gcagcgcatc gccttctatc gccttcttga cgagttcttc tgagcgggac
     4021 tctggggttc gaaatgaccg accaagcgac gcccaacctg ccatcacgag atttcgattc
     4081 caccgccgcc ttctatgaaa ggttgggctt cggaatcgtt ttccgggacg ccggctggat
     4141 gatcctccag cgcggggatc tcatgctgga gttcttcgcc caccctaggg ggaggctaac
     4201 tgaaacacgg aaggagacaa taccggaagg aacccgcgct atgacggcaa taaaaagaca
     4261 gaataaaacg cacggtgttg ggtcgtttgt tcataaacgc ggggttcggt cccagggctg
     4321 gcactctgtc gataccccac cgagacccca ttggggccaa tacgcccgcg tttcttcctt
     4381 ttccccaccc caccccccaa gttcgggtga aggcccaggg ctcgcagcca acgtcggggc
     4441 ggcaggccct gccatagcct caggttactc atatatactt tagattgatt taaaacttca
     4501 tttttaattt aaaaggatct aggtgaagat cctttttgat aatctcatga ccaaaatccc
     4561 ttaacgtgag ttttcgttcc actgagcgtc agaccccgta gaaaagatca aaggatcttc
     4621 ttgagatcct ttttttctgc gcgtaatctg ctgcttgcaa acaaaaaaac caccgctacc
     4681 agcggtggtt tgtttgccgg atcaagagct accaactctt tttccgaagg taactggctt
     4741 cagcagagcg cagataccaa atactgttct tctagtgtag ccgtagttag gccaccactt
     4801 caagaactct gtagcaccgc ctacatacct cgctctgcta atcctgttac cagtggctgc
     4861 tgccagtggc gataagtcgt gtcttaccgg gttggactca agacgatagt taccggataa
     4921 ggcgcagcgg tcgggctgaa cggggggttc gtgcacacag cccagcttgg agcgaacgac
     4981 ctacaccgaa ctgagatacc tacagcgtga gctatgagaa agcgccacgc ttcccgaagg
     5041 gagaaaggcg gacaggtatc cggtaagcgg cagggtcgga acaggagagc gcacgaggga
     5101 gcttccaggg ggaaacgcct ggtatcttta tagtcctgtc gggtttcgcc acctctgact
     5161 tgagcgtcga tttttgtgat gctcgtcagg ggggcggagc ctatggaaaa acgccagcaa
     5221 cgcggccttt ttacggttcc tggccttttg ctggcctttt gctcacatgt tctttcctgc
     5281 gttatcccct gattctgtgg ataaccgtat taccgc
//
