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:
- pLV2-TRE3GS-MCS-3×FLAG-12×His-TetOne-Puro
- 载体抗性:
- Ampicillin
- 载体长度:
- 9337 bp
- 载体类型:
- Protein expression, Tetracycline inducible
- 复制子:
- ori
- 宿主:
- Mammalian cells, Lentivirus
- 筛选标记:
- Puro
- 启动子:
- TRE3GS
- 5'引物:
- cPPT+CTS_F
- 感受态:
- Stbl3
- 培养温度:
- 37℃
- 表达方法:
- Tetracycline induction
pLV2-TRE3GS-MCS-3×FLAG-12×His-TetOne-Puro 载体图谱
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。
pLV2-TRE3GS-MCS-3×FLAG-12×His-TetOne-Puro 载体序列
LOCUS . 9337 bp DNA circular UNK 01-JAN-1980 DEFINITION synthetic circular DNA. ACCESSION VERSION KEYWORDS . SOURCE . ORGANISM . . FEATURES Location/Qualifiers polyA_signal complement(216..350) /label="SV40 poly(A) signal" /note="SV40 polyadenylation signal" promoter 398..502 /label="AmpR promoter" CDS 503..1360 /label="AmpR" /note="β-lactamase" rep_origin 1534..2119 /label="ori" /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of replication" protein_bind 2407..2428 /label="CAP binding site" /note="CAP binding activates transcription in the presence of cAMP." promoter 2443..2473 /label="lac promoter" /note="promoter for the E. coli lac operon" protein_bind 2481..2497 /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-β-D-thiogalactopyranoside (IPTG)." primer_bind 2505..2521 /label="M13 rev" /note="common sequencing primer, one of multiple similar variants" LTR complement(2650..3283) /label="5' LTR" /note="5' long terminal repeat (LTR) from HIV-1" misc_feature complement(3490..4078) /label="WPRE" /note="woodchuck hepatitis virus posttranscriptional regulatory element" CDS complement(4095..4691) /label="PuroR" /note="puromycin N-acetyltransferase" promoter complement(4700..5029) /label="SV40 promoter" /note="SV40 enhancer and early promoter" CDS complement(5043..5786) /label="Tet-On® 3G" /note="modified rtTA protein that binds tightly to promoters containing the tet operator in the presence of doxycycline" promoter complement(5805..6315) /label="hPGK promoter" /note="human phosphoglycerate kinase 1 promoter" promoter 6332..6699 /label="TRE3GS promoter" /note="3rd-generation Tet-responsive promoter that can be activated by binding of Tet-On® 3G, modified to eliminate binding sites for endogenous mammalian transcription factors" CDS 6732..6797 /label="3xFLAG" /note="three tandem FLAG® epitope tags, followed by an enterokinase cleavage site" CDS 6804..6830 /label="9xHis" /note="9xHis affinity tag" misc_feature complement(7194..7311) /label="cPPT/CTS" /note="central polypurine tract and central termination sequence of HIV-1" CDS complement(7383..7424) /gene="Protein Tat" /label="Protein Tat" /note="Protein Tat from Human immunodeficiency virus type 1 group M subtype B (isolate WMJ22). Accession#: P12509" CDS complement(7573..7617) /label="gp41 peptide" /note="antigenic peptide corresponding to amino acids 655 to 669 of the HIV envelope protein gp41 (Lutje Hulsik et al., 2013)" misc_feature complement(7802..8035) /label="RRE" /note="The Rev response element (RRE) of HIV-1 allows for Rev-dependent mRNA export from the nucleus to the cytoplasm." misc_feature complement(8532..8657) /label="HIV-1 Ψ" /note="packaging signal of human immunodeficiency virus type 1" LTR complement(8704..9337) /label="3' LTR" /note="3' long terminal repeat (LTR) from HIV-1"