质粒编号
质粒名称
规格
价格
V014802
pTrp-GFA
5 μg (冻干粉)

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。

载体名称:
pTrp-GFA
载体抗性:
Tetracycline
载体长度:
17509 bp
载体类型:
Protein expression
复制子:
ori
宿主:
E. coli
启动子:
Tac
培养温度:
37℃

pTrp-GFA 载体图谱

pTrp-GFA17509 bp80016002400320040004800560064007200800088009600104001120012000128001360014400152001600016800tac promoteraroGaroFTransketolase 1serAtet promoterTcRropbomorilacI promotertac promoterlac operatorM13 revtrpEtrpGDtrpCtrpBtrpA

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。

pTrp-GFA 载体序列

LOCUS       V014802                17509 bp    DNA     circular SYN 01-JAN-1980
DEFINITION  Exported.
ACCESSION   V014802
VERSION     V014802
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
            .
REFERENCE   1  (bases 1 to 17509)
  AUTHORS   .
  TITLE     Direct Submission
FEATURES             Location/Qualifiers
     source          1..17509
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     promoter        9..37
                     /label="tac promoter"
                     /note="strong E. coli promoter; hybrid between the trp and
                     lac UV5 promoters"
     CDS             174..1223
                     /gene="aroG"
                     /label="Phospho-2-dehydro-3-deoxyheptonate aldolase,
                     Phe-sensitive"
                     /note="Phospho-2-dehydro-3-deoxyheptonate aldolase,
                     Phe-sensitive from Escherichia coli (strain K12).
                     Accession#: P0AB91"
     CDS             1227..2294
                     /gene="aroF"
                     /label="Phospho-2-dehydro-3-deoxyheptonate aldolase,
                     Tyr-sensitive"
                     /note="Phospho-2-dehydro-3-deoxyheptonate aldolase,
                     Tyr-sensitive from Escherichia coli (strain K12).
                     Accession#: P00888"
     CDS             2298..4286
                     /gene="tktA"
                     /label="Transketolase 1"
                     /note="Transketolase 1 from Escherichia coli (strain K12).
                     Accession#: P27302"
     CDS             4704..5933
                     /gene="serA"
                     /label="D-3-phosphoglycerate dehydrogenase"
                     /note="D-3-phosphoglycerate dehydrogenase from Escherichia
                     coli (strain K12). Accession#: P0A9T0"
     promoter        6040..6068
                     /label="tet promoter"
                     /note="E. coli promoter for tetracycline efflux protein
                     gene"
     CDS             6116..7303
                     /label="TcR"
                     /note="tetracycline efflux protein"
     CDS             7945..8133
                     /label="rop"
                     /note="Rop protein, which maintains plasmids at low copy
                     number"
     misc_feature    8238..8378
                     /label="bom"
                     /note="basis of mobility region from pBR322"
     rep_origin      complement(8564..9152)
                     /direction=LEFT
                     /label="ori"
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
                     replication"
     promoter        9299..9376
                     /label="lacI promoter"
     promoter        10455..10483
                     /label="tac promoter"
                     /note="strong E. coli promoter; hybrid between the trp and
                     lac UV5 promoters"
     protein_bind    10491..10507
                     /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)."
     primer_bind     10515..10531
                     /label="M13 rev"
                     /note="common sequencing primer, one of multiple similar
                     variants"
     CDS             10613..12172
                     /gene="trpE"
                     /label="Anthranilate synthase component 1"
                     /note="Anthranilate synthase component 1 from Escherichia
                     coli (strain K12). Accession#: P00895"
     CDS             12175..13767
                     /gene="trpGD"
                     /label="Bifunctional protein TrpGD"
                     /note="Bifunctional protein TrpGD from Escherichia coli
                     (strain K12). Accession#: P00904"
     CDS             13771..15129
                     /gene="trpC"
                     /label="Tryptophan biosynthesis protein TrpCF"
                     /note="Tryptophan biosynthesis protein TrpCF from
                     Escherichia coli (strain K12). Accession#: P00909"
     CDS             15144..16334
                     /gene="trpB"
                     /label="Tryptophan synthase beta chain"
                     /note="Tryptophan synthase beta chain from Shigella
                     flexneri. Accession#: P0A880"
     CDS             16337..17140
                     /gene="trpA"
                     /label="Tryptophan synthase alpha chain"
                     /note="Tryptophan synthase alpha chain from Escherichia
                     coli (strain K12). Accession#: P0A877"