pFF758 载体 (V006275)

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科学研究使用,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:
pFF758
载体抗性:
Chloramphenicol
载体长度:
3166 bp
载体类型:
Cloning vector
复制子:
ori
载体来源:
Farzadfard F, Lu TK.

pFF758 载体图谱

pFF7583166 bp6001200180024003000lac operatorlac operatortemplate for Ec86 RT; msd86Retron Ec86 reverse transcriptaserrnB T1 terminatororilambda t0 terminatorCmRcat promoter

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。

pFF758 载体序列

LOCUS       V006275                 3166 bp    DNA     circular SYN 18-DEC-2018
DEFINITION  Exported.
ACCESSION   V006275
VERSION     V006275
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
            .
REFERENCE   1  (bases 1 to 3166)
  AUTHORS   Farzadfard F, Lu TK.
  TITLE     Synthetic biology. Genomically encoded analog memory with precise in
            vivo DNA writing in living cell populations
  JOURNAL   Science 346 (6211), 1256272 (2014)
   PUBMED   25395541
REFERENCE   2  (bases 1 to 3166)
  AUTHORS   Farzadfard F, Lu T.
  TITLE     Direct Submission
  JOURNAL   Submitted (04-DEC-2014) Biological Engineering, MIT, 77
            Massachusetts Avenue, NE47, Cambridge, MA 02139, USA
REFERENCE   3  (bases 1 to 3166)
  TITLE     Direct Submission
REFERENCE   4  (bases 1 to 3166)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"; journalName: "Science";
            date: "2014"; volume: "346"; issue: "6211"; pages: "1256272"
            SGRef: number: 2; type: "Journal Article"; journalName: "Submitted
            (04-DEC-2014) Biological Engineering, MIT, 77 Massachusetts Avenue,
            NE47, Cambridge, MA 02139, USA"
            SGRef: number: 3; type: "Journal Article"
FEATURES             Location/Qualifiers
     source          1..3166
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     protein_bind    17..33
                     /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)."
     protein_bind    40..56
                     /label="lac operator"
                     /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-beta-D-thiogalactopyranoside (IPTG)."
     misc_feature    97..178
                     /note="primer for the Ec86 RT; msr"
     misc_feature    complement(168..253)
                     /note="template for Ec86 RT; msd86"
     CDS             273..1232
                     /gene="ret"
                     /label="Retron Ec86 reverse transcriptase"
                     /note="Retron Ec86 reverse transcriptase from Escherichia
                     coli. Accession#: P23070"
     terminator      1265..1351
                     /label="rrnB T1 terminator"
                     /note="transcription terminator T1 from the E. coli rrnB
                     gene"
     rep_origin      complement(1515..2103)
                     /direction=LEFT
                     /label="ori"
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
                     replication"
     terminator      complement(2191..2285)
                     /label="lambda t0 terminator"
                     /note="transcription terminator from phage lambda"
     CDS             complement(2309..2965)
                     /label="CmR"
                     /note="chloramphenicol acetyltransferase"
     promoter        complement(2966..3068)
                     /label="cat promoter"
                     /note="promoter of the E. coli cat gene encoding
                     chloramphenicol acetyltransferase"