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:
pX330
载体抗性:
Ampicillin
载体长度:
8484 bp
载体类型:
Mammalian Expression Vectors
复制子:
ori
载体来源:
Cong L, Ran FA, Cox D, Lin S, Barretto R, Habib N, Hsu PD, Wu X,
拷贝数:
High copy number
启动子:
U6

pX330 载体图谱

pX3308484 bp4008001200160020002400280032003600400044004800520056006000640068007200760080008400hybrid intronATG3xFLAGSV40 NLSCas9nucleoplasmin NLSbGH poly(A) signalAAV2 ITRf1 oriAmpR promoterAmpRoriU6 promotergRNA scaffoldpol III terminatorCMV enhancer

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。

pX330 载体序列

LOCUS       pX330.        8484 bp DNA     circular SYN 01-JAN-1980
DEFINITION  Zhang lab plasmid for expressing a chimeric guide RNA (gRNA) 
            together with human codon-optimized Cas9. Also known as 
            pX330-U6-Chimeric_BB-CBh-hSpCas9.
ACCESSION   .
VERSION     .
KEYWORDS    pX330
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 8484)
  AUTHORS   Cong L, Ran FA, Cox D, Lin S, Barretto R, Habib N, Hsu PD, Wu X, 
            Jiang W, Marraffini LA, Zhang F.
  TITLE     Multiplex genome engineering using CRISPR/Cas systems.
  JOURNAL   Science 2013;339:819-23.
  PUBMED    23287718
REFERENCE   2  (bases 1 to 8484)
  AUTHORS   Zhang Lab / Addgene #42230
  TITLE     Direct Submission
REFERENCE   3  (bases 1 to 8484)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"; journalName: "Science"; 
            date: "2013"; volume: "339"; pages: "819-23"
COMMENT     SGRef: number: 2; type: "Journal Article"
COMMENT     Digest with BbsI to insert annealed oligos encoding the guide 
            sequence.
            NGS sequence provided by Addgene.
FEATURES             Location/Qualifiers
     source          1..8484
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     intron          187..414
                     /label=hybrid intron
                     /note="hybrid between chicken beta-actin (CBA) and minute
                     virus of mice (MMV) introns (Gray et al., 2011)"
     CDS             432..434
                     /codon_start=1
                     /product="start codon"
                     /label=start codon
                     /note="ATG"
                     /translation="M"
     CDS             435..500
                     /codon_start=1
                     /product="three tandem FLAG(R) epitope tags, followed by an
                     enterokinase cleavage site"
                     /label=three tandem FLAG
                     /note="3xFLAG"
                     /translation="DYKDHDGDYKDHDIDYKDDDDK"
     CDS             507..527
                     /codon_start=1
                     /product="nuclear localization signal of SV40 large T
                     antigen"
                     /note="SV40 NLS"
                     /translation="PKKKRKV"
     CDS             552..4652
                     /label=Cas9
                     /note="Cas9 (Csn1) endonuclease from the Streptococcus
                     pyogenes Type II CRISPR/Cas system"
     CDS             4653..4700
                     /codon_start=1
                     /product="bipartite nuclear localization signal from
                     nucleoplasmin"
                     /label=bipartite nuclear localization signal from
                     nucl
                     /note="nucleoplasmin NLS"
                     /translation="KRPAATKKAGQAKKKK"
     polyA_signal    4734..4941
                     /label=bGH poly(A) signal
                     /note="bovine growth hormone polyadenylation signal"
     repeat_region   4950..5090
                     /label=AAV2 ITR
                     /note="inverted terminal repeat of adeno-associated virus 
                     serotype 2"
     rep_origin      5165..5620
                     /label=f1 ori
                     /note="f1 bacteriophage origin of replication; arrow
                     indicates direction of (+) strand synthesis"
     promoter        5902..6006
                     /label=AmpR promoter
     CDS             6007..6864
                     /label=AmpR
                     /note="beta-lactamase"
     rep_origin      7038..7626
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     promoter        7688..7928
                     /label=U6 promoter
                     /note="RNA polymerase III promoter for human U6 snRNA"
     misc_RNA        7955..8030
                     /label=gRNA scaffold
                     /note="guide RNA scaffold for the Streptococcus pyogenes 
                     CRISPR/Cas9 system"
     terminator      8031..8036
                     /note="pol III terminator"
                     /note="RNA polymerase III transcription terminator"
     enhancer        8127..8412
                     /label=CMV enhancer
                     /note="human cytomegalovirus immediate early enhancer;
                     contains an 18-bp deletion relative to the standard CMV 
                     enhancer"