pET-28b大肠杆菌蛋白表达质粒

货号 名称 规格 优惠价
P0346 pET-28b大肠杆菌蛋白表达质粒

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启动子: T7/laco promoter
复制子: ColE1 ori,F1 ori
终止子: T7 terminator
质粒分类: 大肠杆菌载体;PET系列表达质粒
质粒大小: 5368bp
质粒标签: N-6×His, N-Thrombin, N-T7, C-6×His
原核抗性: 卡那霉素Kan
克隆菌株: 大肠杆菌DH5α
培养条件: 37℃,有氧,LB
表达宿主: 大肠杆菌BL21(DE3)
培养条件: 37℃,有氧,LB
诱导方式: IPTG或乳糖及其类似物
5'测序引物: T7:TAATACGACTCACTATAGGG
3'测序引物: T7-ter:TGCTAGTTATTGCTCAGCGG
        pET-28b载体带有一个N端的His/Thrombin/T7蛋白标签,同时含有一个可以选择的C端His标签。pET28b载体的单一的 多克隆位点见上面的环状质粒图谱。注意:载体序列是以pBR322质粒的编码规矩进行编码的,所以T7蛋白表达区在质粒图谱上面是反向的。T7 RNA聚合酶启动的克隆和表达区域在质粒图谱中也被标注了出来。质粒的F1复制子是被定向的,所以在T7噬菌体聚合酶的作用下,包含有蛋白编码序列的病毒 粒子能够产生,并启动蛋白表达,同时蛋白表达将被T7终止子序列的作用下终止蛋白翻译。
LOCUS       Exported                5368 bp ds-DNA     circular SYN 03-8-2015
DEFINITION  synthetic circular DNA
KEYWORDS    Untitled
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 5368)
  TITLE     Direct Submission
  JOURNAL   Exported 2015-8-3  from MLCC
            http://www.miaolingbio.com
FEATURES             Location/Qualifiers
     source          1..5368
                     /organism="synthetic DNA construct"
                     /mol_type="other DNA"
     source          305..327
                     /organism="Enterobacteria phage T7"
                     /mol_type="genomic DNA"
                     /db_xref="taxon:10760"
     terminator      26..73
                     /note="T7 terminator"
                     /note="transcription terminator for bacteriophage T7 RNA
                     polymerase"
     CDS             complement(140..157)
                     /codon_start=1
                     /product="6xHis affinity tag"
                     /note="6xHis"
                     /translation="HHHHHH"
     CDS             complement(206..238)
                     /codon_start=1
                     /product="leader peptide from bacteriophage T7 gene 10"
                     /note="T7 tag (gene 10 leader)"
                     /note="promotes efficient translation in E. coli"
                     /translation="MASMTGGQQMG"
     CDS             complement(242..259)
                     /codon_start=1
                     /product="thrombin recognition and cleavage site"
                     /note="thrombin site"
                     /translation="LVPRGS"
     CDS             complement(269..286)
                     /codon_start=1
                     /product="6xHis affinity tag"
                     /note="6xHis"
                     /translation="HHHHHH"
     RBS             305..327
                     /note="efficient ribosome binding site from bacteriophage
                     T7 gene 10 (Olins and Rangwala, 1989)"
     protein_bind    342..366
                     /bound_moiety="lac repressor encoded by lacI"
                     /note="lac operator"
                     /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(367..385)
                     /note="T7 promoter"
                     /note="promoter for bacteriophage T7 RNA polymerase"
     promoter        694..771
                     /gene="lacI"
                     /note="lacI promoter"
     CDS             772..1854
                     /codon_start=1
                     /gene="lacI"
                     /product="lac repressor"
                     /note="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)."
                     /translation="MKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAEL
                     NYIPNRVAQQLAGKQSLLIGVATSSLALHAPSQIVAAIKSRADQLGASVVVSMVERSGV
                     EACKAAVHNLLAQRVSGLIINYPLDDQDAIAVEAACTNVPALFLDVSDQTPINSIIFSH
                     EDGTRLGVEHLVALGHQQIALLAGPLSSVSARLRLAGWHKYLTRNQIQPIAEREGDWSA
                     MSGFQQTMQMLNEGIVPTAMLVANDQMALGAMRAITESGLRVGADISVVGYDDTEDSSC
                     YIPPLTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNTQTASPR
                     ALADSLMQLARQVSRLESGQ"
     CDS             2663..2854
                     /codon_start=1
                     /gene="rop"
                     /product="Rop protein, which maintains plasmids at low copy
                     number"
                     /note="rop"
                     /translation="MTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
                     DELYRSCLARFGDDGENL"
     misc_feature    2956..3098
                     /note="bom"
                     /note="basis of mobility region from pBR322"
     rep_origin      complement(3284..3872)
                     /direction=LEFT
                     /note="ori"
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
                     replication"
     CDS             3994..4809
                     /codon_start=1
                     /product="aminoglycoside phosphotransferase"
                     /note="KanR"
                     /note="confers resistance to kanamycin in bacteria or G418
                     (Geneticin(R)) in eukaryotes"
                     /translation="MSHIQRETSCSRPRLNSNMDADLYGYKWARDNVGQSGATIYRLYG
                     KPDAPELFLKHGKGSVANDVTDEMVRLNWLTEFMPLPTIKHFIRTPDDAWLLTTAIPGK
                     TAFQVLEEYPDSGENIVDALAVFLRRLHSIPVCNCPFNSDRVFRLAQAQSRMNNGLVDA
                     SDFDDERNGWPVEQVWKEMHKLLPFSPDSVVTHGDFSLDNLIFDEGKLIGCIDVGRVGI
                     ADRYQDLAILWNCLGEFSPSLQKRLFQKYGIDNPDMNKLQFHLMLDEFF"
     rep_origin      complement(4902..5357)
                     /direction=LEFT
                     /note="f1 ori"
                     /note="f1 bacteriophage origin of replication; arrow
                     indicates direction of (+) strand synthesis"
ORIGIN
        1 atccggatat agttcctcct ttcagcaaaa aacccctcaa gacccgttta gaggccccaa
       61 ggggttatgc tagttattgc tcagcggtgg cagcagccaa ctcagcttcc tttcgggctt
      121 tgttagcagc cggatctcag tggtggtggt ggtggtgctc gagtgcggcc gcaagcttgt
      181 cgacggagct cgaattcgga tcccgaccca tttgctgtcc accagtcatg ctagccatat
      241 ggctgccgcg cggcaccagg ccgctgctgt gatgatgatg atgatggctg ctgcccatgg
      301 tatatctcct tcttaaagtt aaacaaaatt atttctagag gggaattgtt atccgctcac
      361 aattccccta tagtgagtcg tattaatttc gcgggatcga gatctcgatc ctctacgccg
      421 gacgcatcgt ggccggcatc accggcgcca caggtgcggt tgctggcgcc tatatcgccg
      481 acatcaccga tggggaagat cgggctcgcc acttcgggct catgagcgct tgtttcggcg
      541 tgggtatggt ggcaggcccc gtggccgggg gactgttggg cgccatctcc ttgcatgcac
      601 cattccttgc ggcggcggtg ctcaacggcc tcaacctact actgggctgc ttcctaatgc
      661 aggagtcgca taagggagag cgtcgagatc ccggacacca tcgaatggcg caaaaccttt
      721 cgcggtatgg catgatagcg cccggaagag agtcaattca gggtggtgaa tgtgaaacca
      781 gtaacgttat acgatgtcgc agagtatgcc ggtgtctctt atcagaccgt ttcccgcgtg
      841 gtgaaccagg ccagccacgt ttctgcgaaa acgcgggaaa aagtggaagc ggcgatggcg
      901 gagctgaatt acattcccaa ccgcgtggca caacaactgg cgggcaaaca gtcgttgctg
      961 attggcgttg ccacctccag tctggccctg cacgcgccgt cgcaaattgt cgcggcgatt
     1021 aaatctcgcg ccgatcaact gggtgccagc gtggtggtgt cgatggtaga acgaagcggc
     1081 gtcgaagcct gtaaagcggc ggtgcacaat cttctcgcgc aacgcgtcag tgggctgatc
     1141 attaactatc cgctggatga ccaggatgcc attgctgtgg aagctgcctg cactaatgtt
     1201 ccggcgttat ttcttgatgt ctctgaccag acacccatca acagtattat tttctcccat
     1261 gaagacggta cgcgactggg cgtggagcat ctggtcgcat tgggtcacca gcaaatcgcg
     1321 ctgttagcgg gcccattaag ttctgtctcg gcgcgtctgc gtctggctgg ctggcataaa
     1381 tatctcactc gcaatcaaat tcagccgata gcggaacggg aaggcgactg gagtgccatg
     1441 tccggttttc aacaaaccat gcaaatgctg aatgagggca tcgttcccac tgcgatgctg
     1501 gttgccaacg atcagatggc gctgggcgca atgcgcgcca ttaccgagtc cgggctgcgc
     1561 gttggtgcgg atatctcggt agtgggatac gacgataccg aagacagctc atgttatatc
     1621 ccgccgttaa ccaccatcaa acaggatttt cgcctgctgg ggcaaaccag cgtggaccgc
     1681 ttgctgcaac tctctcaggg ccaggcggtg aagggcaatc agctgttgcc cgtctcactg
     1741 gtgaaaagaa aaaccaccct ggcgcccaat acgcaaaccg cctctccccg cgcgttggcc
     1801 gattcattaa tgcagctggc acgacaggtt tcccgactgg aaagcgggca gtgagcgcaa
     1861 cgcaattaat gtaagttagc tcactcatta ggcaccggga tctcgaccga tgcccttgag
     1921 agccttcaac ccagtcagct ccttccggtg ggcgcggggc atgactatcg tcgccgcact
     1981 tatgactgtc ttctttatca tgcaactcgt aggacaggtg ccggcagcgc tctgggtcat
     2041 tttcggcgag gaccgctttc gctggagcgc gacgatgatc ggcctgtcgc ttgcggtatt
     2101 cggaatcttg cacgccctcg ctcaagcctt cgtcactggt cccgccacca aacgtttcgg
     2161 cgagaagcag gccattatcg ccggcatggc ggccccacgg gtgcgcatga tcgtgctcct
     2221 gtcgttgagg acccggctag gctggcgggg ttgccttact ggttagcaga atgaatcacc
     2281 gatacgcgag cgaacgtgaa gcgactgctg ctgcaaaacg tctgcgacct gagcaacaac
     2341 atgaatggtc ttcggtttcc gtgtttcgta aagtctggaa acgcggaagt cagcgccctg
     2401 caccattatg ttccggatct gcatcgcagg atgctgctgg ctaccctgtg gaacacctac
     2461 atctgtatta acgaagcgct ggcattgacc ctgagtgatt tttctctggt cccgccgcat
     2521 ccataccgcc agttgtttac cctcacaacg ttccagtaac cgggcatgtt catcatcagt
     2581 aacccgtatc gtgagcatcc tctctcgttt catcggtatc attaccccca tgaacagaaa
     2641 tcccccttac acggaggcat cagtgaccaa acaggaaaaa accgccctta acatggcccg
     2701 ctttatcaga agccagacat taacgcttct ggagaaactc aacgagctgg acgcggatga
     2761 acaggcagac atctgtgaat cgcttcacga ccacgctgat gagctttacc gcagctgcct
     2821 cgcgcgtttc ggtgatgacg gtgaaaacct ctgacacatg cagctcccgg agacggtcac
     2881 agcttgtctg taagcggatg ccgggagcag acaagcccgt cagggcgcgt cagcgggtgt
     2941 tggcgggtgt cggggcgcag ccatgaccca gtcacgtagc gatagcggag tgtatactgg
     3001 cttaactatg cggcatcaga gcagattgta ctgagagtgc accatatatg cggtgtgaaa
     3061 taccgcacag atgcgtaagg agaaaatacc gcatcaggcg ctcttccgct tcctcgctca
     3121 ctgactcgct gcgctcggtc gttcggctgc ggcgagcggt atcagctcac tcaaaggcgg
     3181 taatacggtt atccacagaa tcaggggata acgcaggaaa gaacatgtga gcaaaaggcc
     3241 agcaaaaggc caggaaccgt aaaaaggccg cgttgctggc gtttttccat aggctccgcc
     3301 cccctgacga gcatcacaaa aatcgacgct caagtcagag gtggcgaaac ccgacaggac
     3361 tataaagata ccaggcgttt ccccctggaa gctccctcgt gcgctctcct gttccgaccc
     3421 tgccgcttac cggatacctg tccgcctttc tcccttcggg aagcgtggcg ctttctcata
     3481 gctcacgctg taggtatctc agttcggtgt aggtcgttcg ctccaagctg ggctgtgtgc
     3541 acgaaccccc cgttcagccc gaccgctgcg ccttatccgg taactatcgt cttgagtcca
     3601 acccggtaag acacgactta tcgccactgg cagcagccac tggtaacagg attagcagag
     3661 cgaggtatgt aggcggtgct acagagttct tgaagtggtg gcctaactac ggctacacta
     3721 gaaggacagt atttggtatc tgcgctctgc tgaagccagt taccttcgga aaaagagttg
     3781 gtagctcttg atccggcaaa caaaccaccg ctggtagcgg tggttttttt gtttgcaagc
     3841 agcagattac gcgcagaaaa aaaggatctc aagaagatcc tttgatcttt tctacggggt
     3901 ctgacgctca gtggaacgaa aactcacgtt aagggatttt ggtcatgaac aataaaactg
     3961 tctgcttaca taaacagtaa tacaaggggt gttatgagcc atattcaacg ggaaacgtct
     4021 tgctctaggc cgcgattaaa ttccaacatg gatgctgatt tatatgggta taaatgggct
     4081 cgcgataatg tcgggcaatc aggtgcgaca atctatcgat tgtatgggaa gcccgatgcg
     4141 ccagagttgt ttctgaaaca tggcaaaggt agcgttgcca atgatgttac agatgagatg
     4201 gtcagactaa actggctgac ggaatttatg cctcttccga ccatcaagca ttttatccgt
     4261 actcctgatg atgcatggtt actcaccact gcgatccccg ggaaaacagc attccaggta
     4321 ttagaagaat atcctgattc aggtgaaaat attgttgatg cgctggcagt gttcctgcgc
     4381 cggttgcatt cgattcctgt ttgtaattgt ccttttaaca gcgatcgcgt atttcgtctc
     4441 gctcaggcgc aatcacgaat gaataacggt ttggttgatg cgagtgattt tgatgacgag
     4501 cgtaatggct ggcctgttga acaagtctgg aaagaaatgc ataaactttt gccattctca
     4561 ccggattcag tcgtcactca tggtgatttc tcacttgata accttatttt tgacgagggg
     4621 aaattaatag gttgtattga tgttggacga gtcggaatcg cagaccgata ccaggatctt
     4681 gccatcctat ggaactgcct cggtgagttt tctccttcat tacagaaacg gctttttcaa
     4741 aaatatggta ttgataatcc tgatatgaat aaattgcagt ttcatttgat gctcgatgag
     4801 tttttctaag aattaattca tgagcggata catatttgaa tgtatttaga aaaataaaca
     4861 aataggggtt ccgcgcacat ttccccgaaa agtgccacct gaaattgtaa acgttaatat
     4921 tttgttaaaa ttcgcgttaa atttttgtta aatcagctca ttttttaacc aataggccga
     4981 aatcggcaaa atcccttata aatcaaaaga atagaccgag atagggttga gtgttgttcc
     5041 agtttggaac aagagtccac tattaaagaa cgtggactcc aacgtcaaag ggcgaaaaac
     5101 cgtctatcag ggcgatggcc cactacgtga accatcaccc taatcaagtt ttttggggtc
     5161 gaggtgccgt aaagcactaa atcggaaccc taaagggagc ccccgattta gagcttgacg
     5221 gggaaagccg gcgaacgtgg cgagaaagga agggaagaaa gcgaaaggag cgggcgctag
     5281 ggcgctggca agtgtagcgg tcacgctgcg cgtaaccacc acacccgccg cgcttaatgc
     5341 gccgctacag ggcgcgtccc attcgcca
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