我们所展示的质粒图谱主要是从文献和开放数据库中收集而来,主要是为了方便研究工作,其中一小部分质粒进行了质量控制,可供科学家使用。

所有的产品都严格仅供学术研究使用,不能应用于临床试验,包括人体摄入、注射或外用的药理学用途。

确保质粒的关键元件正确,但是我们并不能保证实验结果。页面展示的图谱序列为理论序列,可能与测序结果不一致,请自行比对后确定是否满足要求。(如果测过序,本页面一般会提供下载)

开放数据库中的大多数载体序列都没有被完全测序。如果实际序列与参考序列的相似度超过99%,则将其视为正确。

由于科学研究是在探索未知,具有很大的不确定性,在任何情况下,我们都不承担超出质粒本身的额外经济损失或责任。

Note:

载体名称:
pTriEx-4 Neo
载体抗性:
Ampicillin
载体长度:
6601 bp
载体类型:
Insect Cell Vectors
复制子:
ori
载体来源:
Novagen (EMD Millipore)
筛选标记:
Neomycin/G418(Geneticin)
拷贝数:
High copy number
启动子:
CMV

pTriEx-4 Neo 载体图谱

pTriEx-4 Neo6601 bp3006009001200150018002100240027003000330036003900420045004800510054005700600063006600baculovirus recombination region (lef2/ORF603)CMV enhancerCMV promoterExon 1intronT7 promoterlac operatorp10 promoterRBSstart codon6xHisS-Tagthrombin siteenterokinase siteHSV tag8xHisIRESNeoR/KanRbeta-globin poly(A) signalT7 terminatorbaculovirus recombination region (ORF1629)loxPoriAmpR

质粒操作方法

1. 发货形式:质粒干粉(常温运输,存于-20度,请务必先转化提质粒后使用)

2. 收到质粒干粉后请先5000rpm离心1min,再加入20μl ddH2O溶解质粒;(质粒复测的浓度有时候与标称值差距较大,这可能是因为冻干质粒在管中的位置、复溶效率、测量偏差以及管壁的吸附导致,因此建议先转化提质粒后再使用)

3. 取1支100μl 感受态于冰上解冻10min,加入2μl质粒,再冰浴30min后,42℃热激60s,不要搅动,再冰浴2min;

4. 加入900μl无抗的LB液体培养基,180rpm震荡37℃培养45min (30℃培养1-1.5小时);

5. 6000rpm离心5min,仅留100μl上清液重悬细菌沉淀,并涂布至目标质粒抗性的LB平板上;

6. 将平板倒置37℃培养14h,如果要求是30℃则培养20h; (菌落过多则将质粒稀释后再转化;没有菌落则加入10μl质粒转化;建议不要直接转表达感受态, 要先转克隆感受态,重提质粒后再导入表达感受态);

7. 挑取单菌落至LB液体培养基中,加入对应抗生素,220rpm震荡培养14h,根据实验需要和质粒提取试剂盒说明书提取质粒。

pTriEx-4 Neo 载体序列

LOCUS       pTriEx-4_Neo.        6601 bp DNA     circular SYN 01-JAN-1980
DEFINITION  Insect, bacterial, and mammalian vector with a CMV promoter and a 
            neomycin resistance marker, encoding an N-terminal 6xHis-S-Tag and a
            C-terminal HSV-8xHis.
ACCESSION   .
VERSION     .
KEYWORDS    pTriEx-4 Neo
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 6601)
  AUTHORS   Novagen (EMD Millipore)
  TITLE     Direct Submission
REFERENCE   2  (bases 1 to 6601)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"
FEATURES             Location/Qualifiers
     source          1..6601
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     misc_recomb     181..1008
                     /label=baculovirus recombination region (lef2/ORF603)
                     /note="contains ORF603 and part of lef2"
     enhancer        1076..1379
                     /label=CMV enhancer
                     /note="human cytomegalovirus immediate early enhancer"
     promoter        1381..1580
                     /label=CMV promoter
                     /note="human cytomegalovirus (CMV) immediate early
                     promoter"
     exon            1597..1698
                     /note="Exon 1"
     intron          1699..1862
     promoter        1931..1949
                     /label=T7 promoter
                     /note="promoter for bacteriophage T7 RNA polymerase"
     protein_bind    1950..1974
                     /label=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        1990..2099
                     /label=p10 promoter
                     /note="baculovirus promoter for expression in insect cells"
     RBS             2101..2106
                     /note="ribosome binding site"
     CDS             2114..2116
                     /codon_start=1
                     /product="start codon"
                     /label=start codon
                     /note="ATG"
                     /translation="M"
     CDS             2120..2137
                     /label=6xHis
                     /note="6xHis affinity tag"
     CDS             2147..2191
                     /label=S-Tag
                     /note="affinity and epitope tag derived from pancreatic 
                     ribonuclease A"
     CDS             2207..2224
                     /label=thrombin site
                     /note="thrombin recognition and cleavage site"
     CDS             2243..2257
                     /label=enterokinase site
                     /note="enterokinase recognition and cleavage site"
     CDS             2381..2413
                     /label=HSV tag
                     /note="HSV (herpes simplex virus) epitope tag"
     CDS             2420..2443
                     /label=8xHis
                     /note="8xHis affinity tag"
     misc_feature    2542..3004
                     /label=IRES
                     /note="internal ribosome entry site (IRES) of the 
                     encephalomyocarditis virus (EMCV)"
     CDS             3040..3840
                     /label=NeoR/KanR
                     /note="aminoglycoside phosphotransferase from Tn5"
     polyA_signal    3961..4016
                     /label=beta-globin poly(A) signal
                     /note="rabbit beta-globin polyadenylation signal (Gil and 
                     Proudfoot, 1987)"
     terminator      4104..4151
                     /label=T7 terminator
                     /note="transcription terminator for bacteriophage T7 RNA 
                     polymerase"
     misc_recomb     4164..4869
                     /label=baculovirus recombination region (ORF1629)
                     /note="contains part of ORF1629"
     protein_bind    complement(4878..4911)
                     /label=loxP
                     /note="Cre-mediated recombination occurs in the 8-bp core 
                     sequence (ATGTATGC) (Shaw et al., 2021)."
     rep_origin      complement(5079..5666)
                     /direction=LEFT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     CDS             complement(5682..6539)
                     /label=AmpR
                     /note="beta-lactamase"