pEnCMV-SLC7A11(human)-3xMyc7552 bp3006009001200150018002100240027003000330036003900420045004800510054005700600063006600690072007500CMV enhancerCMV promoterSLC7A11(NM_014331)3xMycWPREHSV TK poly(A) signalf1 oriSV40 promoterNeoR/KanRSV40 poly(A) signalM13 revlac operatorlac promoterCAP binding siteoriAmpRAmpR promoter

基本信息

载体名称
pEnCMV-SLC7A11(human)-3xMyc
载体抗性
Ampicillin
Refseq ID
NM_014331.4
载体长度
7552 bp
载体类型
Protein expression
复制子
ori
宿主
Mammalian cells
筛选标记
Neo/G418
启动子
CMV
载体标签
3xMyc
感受态
DH5a
培养温度
37℃
表达方法
Transient
描述
Homo sapiens solute carrier family 7 member 11 (SLC7A11), mRNA

质粒操作方法

质粒复溶方法

  1. 发货形式:质粒干粉,常温运输,收到后请于 -20 ℃ 保存,先转化提质粒再使用。
  2. 收到干粉后先 5000 rpm 离心 1 min,加入 20 μl ddH₂O 溶解。质粒复测浓度与标称值可能有差距,这通常来自干粉在管中的位置、复溶效率、测量偏差与管壁吸附,建议先转化提质粒后再使用。
  3. 取 1 支 100 μl 感受态细胞冰上解冻 10 min,加入 2 μl 质粒,冰浴 30 min,42 ℃ 热激 60 s(不要摇动),再冰浴 2 min。
  4. 加入 900 μl 无抗生素 LB 液体培养基,180 rpm、37 ℃ 振荡培养 45 min(30 ℃ 培养 1–1.5 h)。
  5. 6000 rpm 离心 5 min,保留约 100 μl 上清重悬菌体,涂布到对应抗性的 LB 平板。
  6. 平板倒置 37 ℃ 培养 14 h(30 ℃ 则 20 h)。菌落过多可稀释质粒后再转化;无菌落可增加至 10 μl 质粒。建议先转克隆感受态、重提质粒后再导入表达感受态。
  7. 挑取单菌落接种 LB 液体培养基,加入对应抗生素,220 rpm 振荡培养 14 h,按试剂盒说明提取质粒。

通用质粒转化方法

  1. 取100 μL感受态细胞置于冰上解冻10 min,加入2 μL质粒,冰浴30 min;随后42 ℃热激60 s,期间不要晃动,再冰浴2 min。
  2. 加入900 μL无抗LB液体培养基,37 ℃、180 rpm振荡培养45 min(30 ℃条件下则培养1–1.5 h)。
  3. 6000 rpm离心5 min,弃上清,仅保留100 μL上清重悬菌体沉淀,涂布于对应质粒抗性的LB平板上。
  4. 平板倒置培养,37 ℃培养14 h,或30 ℃培养20 h。
  5. 挑取单菌落至LB液体培养基中,加入对应抗生素,220 rpm振荡培养14 h;根据实验需求及质粒提取试剂盒说明书提取质粒。

人SLC7A11 ORF 克隆 (NM_014331) (编号: V026091) 注释

LOCUS       V026091                 7552 bp    DNA     circular SYN 01-JAN-1980
DEFINITION  synthetic circular DNA.
ACCESSION   V026091
VERSION     V026091
KEYWORDS    .
SOURCE      .
  ORGANISM  .
            .
FEATURES             Location/Qualifiers
     enhancer        50..429
                     /note="human cytomegalovirus immediate early enhancer"
                     /label="CMV enhancer"
     promoter        430..633
                     /note="human cytomegalovirus (CMV) immediate early
                     promoter"
                     /label="CMV promoter"
     CDS             706..2208
                     /label="SLC7A11(NM_014331)"
                     /note="SLC7A11(NM_014331)"
                     /gene="SLC7A11"
     CDS             2215..2304
                     /codon_start=1
                     /product="3 tandem Myc epitope tags"
                     /transl_table=1
                     /translation="EQKLISEEDLEQKLISEEDLEQKLISEEDL"
                     /label="3xMyc"
     misc_feature    2328..2916
                     /note="woodchuck hepatitis virus posttranscriptional
                     regulatory element"
                     /label="WPRE"
     polyA_signal    2982..3030
                     /note="herpes simplex virus thymidine kinase
                     polyadenylation signal (Cole and Stacy, 1985)"
                     /label="HSV TK poly(A) signal"
     rep_origin      3232..3660
                     /direction=RIGHT
                     /note="f1 bacteriophage origin of replication; arrow
                     indicates direction of (+) strand synthesis"
                     /label="f1 ori"
     promoter        3674..4003
                     /note="SV40 enhancer and early promoter"
                     /label="SV40 promoter"
     CDS             4070..4864
                     /codon_start=1
                     /gene="aph(3')-II (or nptII)"
                     /note="confers resistance to neomycin, kanamycin, and G418
                     (Geneticin®)"
                     /product="aminoglycoside phosphotransferase from Tn5"
                     /transl_table=1
                     /translation="MIEQDGLHAGSPAAWVERLFGYDWAQQTIGCSDAAVFRLSAQGRP
                     VLFVKTDLSGALNELQDEAARLSWLATTGVPCAAVLDVVTEAGRDWLLLGEVPGQDLLS
                     SHLAPAEKVSIMADAMRRLHTLDPATCPFDHQAKHRIERARTRMEAGLVDQDDLDEEHQ
                     GLAPAELFARLKARMPDGEDLVVTHGDACLPNIMVENGRFSGFIDCGRLGVADRYQDIA
                     LATRDIAEELGGEWADRFLVLYGIAAPDSQRIAFYRLLDEFF*"
                     /label="NeoR/KanR"
     polyA_signal    5040..5161
                     /note="SV40 polyadenylation signal"
                     /label="SV40 poly(A) signal"
     primer_bind     complement(5210..5226)
                     /note="common sequencing primer, one of multiple similar
                     variants"
                     /label="M13 rev"
     protein_bind    5234..5250
                     /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-β-D-thiogalactopyranoside (IPTG)."
                     /label="lac operator"
     promoter        complement(5258..5288)
                     /note="promoter for the E. coli lac operon"
                     /label="lac promoter"
     protein_bind    5303..5324
                     /bound_moiety="E. coli catabolite activator protein"
                     /note="CAP binding activates transcription in the presence
                     of cAMP."
                     /label="CAP binding site"
     rep_origin      complement(5612..6200)
                     /direction=LEFT
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
                     replication"
                     /label="ori"
     CDS             complement(6371..7231)
                     /codon_start=1
                     /gene="bla"
                     /note="confers resistance to ampicillin, carbenicillin, and
                     related antibiotics"
                     /product="β-lactamase"
                     /transl_table=1
                     /translation="MSIQHFRVALIPFFAAFCLPVFA,HPETLVKVKDAEDQLGARVGY
                     IELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVEY
                     SPVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDR
                     WEPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRS
                     ALPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGA
                     SLIKHW*"
                     /label="AmpR"
     promoter        complement(7232..7336)
                     /gene="bla"
                     /label="AmpR promoter"