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:
- pCMV-PE2
- 载体抗性:
- Ampicillin
- 载体长度:
- 9753 bp
- 载体类型:
- Mammalian Expression
- 复制子:
- ori
- 拷贝数:
- High Copy
- 启动子:
- CMV
- 克隆方法:
- Ligation Independent Cloning
- 5'引物:
- T7-forward
- 3'引物:
- BGH-reverse
- 感受态:
- DH10b
- 培养温度:
- 37℃
pCMV-PE2 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。
pCMV-PE2 载体序列
LOCUS Exported 9753 bp DNA circular SYN 08-AUG-2024
DEFINITION Prime editing in mammalian cells. This plasmid is used by PE2, PE3,
and PE3b.
ACCESSION .
VERSION .
KEYWORDS .
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 9753)
AUTHORS Anzalone AV, Randolph PB, Davis JR, Sousa AA, Koblan LW, Levy JM,
Chen PJ, Wilson C, Newby GA, Raguram A, Liu DR
TITLE Search-and-replace genome editing without double-strand breaks or
donor DNA.
JOURNAL Nature. 2019 Oct 21. pii: 10.1038/s41586-019-1711-4. doi:
10.1038/s41586-019-1711-4.
PUBMED 31634902
REFERENCE 2 (bases 1 to 9753)
TITLE Direct Submission
REFERENCE 3 (bases 1 to 9753)
TITLE Direct Submission
REFERENCE 4 (bases 1 to 9753)
AUTHORS .
TITLE Direct Submission
COMMENT SGRef: number: 1; type: "Journal Article"; journalName: "Nature.
2019 Oct 21. pii: 10.1038/s41586-019-1711-4. doi:
10.1038/s41586-019-1711-4."
COMMENT SGRef: number: 2; type: "Journal Article"
COMMENT SGRef: number: 3; type: "Journal Article"
FEATURES Location/Qualifiers
source 1..9753
/mol_type="other DNA"
/organism="synthetic DNA construct"
enhancer 1..380
/label=CMV enhancer
/note="human cytomegalovirus immediate early enhancer"
promoter 381..584
/label=CMV promoter
/note="human cytomegalovirus (CMV) immediate early
promoter"
promoter 626..644
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
CDS 694..714
/codon_start=1
/label=SV40 NLS
/note="nuclear localization signal of SV40 (simian virus
40) large T antigen"
/translation="PKKKRKV"
CDS 715..4815
/codon_start=1
/product="Cas9 (Csn1) endonuclease from the Streptococcus
pyogenes Type II CRISPR/Cas system"
/label=Cas9
/note="generates RNA-guided double strand breaks in DNA"
/translation="DKKYSIGLDIGTNSVGWAVITDEYKVPSKKFKVLGNTDRHSIKKN
LIGALLFDSGETAEATRLKRTARRRYTRRKNRICYLQEIFSNEMAKVDDSFFHRLEESF
LVEEDKKHERHPIFGNIVDEVAYHEKYPTIYHLRKKLVDSTDKADLRLIYLALAHMIKF
RGHFLIEGDLNPDNSDVDKLFIQLVQTYNQLFEENPINASGVDAKAILSARLSKSRRLE
NLIAQLPGEKKNGLFGNLIALSLGLTPNFKSNFDLAEDAKLQLSKDTYDDDLDNLLAQI
GDQYADLFLAAKNLSDAILLSDILRVNTEITKAPLSASMIKRYDEHHQDLTLLKALVRQ
QLPEKYKEIFFDQSKNGYAGYIDGGASQEEFYKFIKPILEKMDGTEELLVKLNREDLLR
KQRTFDNGSIPHQIHLGELHAILRRQEDFYPFLKDNREKIEKILTFRIPYYVGPLARGN
SRFAWMTRKSEETITPWNFEEVVDKGASAQSFIERMTNFDKNLPNEKVLPKHSLLYEYF
TVYNELTKVKYVTEGMRKPAFLSGEQKKAIVDLLFKTNRKVTVKQLKEDYFKKIECFDS
VEISGVEDRFNASLGTYHDLLKIIKDKDFLDNEENEDILEDIVLTLTLFEDREMIEERL
KTYAHLFDDKVMKQLKRRRYTGWGRLSRKLINGIRDKQSGKTILDFLKSDGFANRNFMQ
LIHDDSLTFKEDIQKAQVSGQGDSLHEHIANLAGSPAIKKGILQTVKVVDELVKVMGRH
KPENIVIEMARENQTTQKGQKNSRERMKRIEEGIKELGSQILKEHPVENTQLQNEKLYL
YYLQNGRDMYVDQELDINRLSDYDVDAIVPQSFLKDDSIDNKVLTRSDKNRGKSDNVPS
EEVVKKMKNYWRQLLNAKLITQRKFDNLTKAERGGLSELDKAGFIKRQLVETRQITKHV
AQILDSRMNTKYDENDKLIREVKVITLKSKLVSDFRKDFQFYKVREINNYHHAHDAYLN
AVVGTALIKKYPKLESEFVYGDYKVYDVRKMIAKSEQEIGKATAKYFFYSNIMNFFKTE
ITLANGEIRKRPLIETNGETGEIVWDKGRDFATVRKVLSMPQVNIVKKTEVQTGGFSKE
SILPKRNSDKLIARKKDWDPKKYGGFDSPTVAYSVLVVAKVEKGKSKKLKSVKELLGIT
IMERSSFEKNPIDFLEAKGYKEVKKDLIIKLPKYSLFELENGRKRMLASAGELQKGNEL
ALPSKYVNFLYLASHYEKLKGSPEDNEQKQLFVEQHKHYLDEIIEQISEFSKRVILADA
NLDKVLSAYNKHRDKPIREQAENIIHLFTLTNLGAPAAFKYFDTTIDRKRYTSTKEVLD
ATLIHQSITGLYETRIDLSQLGGD"
CDS 4915..6945
/codon_start=1
/product="M-MLV RT(D200N, T306K, W313F, T330P, L603W) is
from the Moloney murine leukemia virus"
/label=M-MLV RT
/translation="TLNIEDEYRLHETSKEPDVSLGSTWLSDFPQAWAETGGMGLAVRQ
APLIIPLKATSTPVSIKQYPMSQEARLGIKPHIQRLLDQGILVPCQSPWNTPLLPVKKP
GTNDYRPVQDLREVNKRVEDIHPTVPNPYNLLSGLPPSHQWYTVLDLKDAFFCLRLHPT
SQPLFAFEWRDPEMGISGQLTWTRLPQGFKNSPTLFNEALHRDLADFRIQHPDLILLQY
VDDLLLAATSELDCQQGTRALLQTLGNLGYRASAKKAQICQKQVKYLGYLLKEGQRWLT
EARKETVMGQPTPKTPRQLREFLGKAGFCRLFIPGFAEMAAPLYPLTKPGTLFNWGPDQ
QKAYQEIKQALLTAPALGLPDLTKPFELFVDEKQGYAKGVLTQKLGPWRRPVAYLSKKL
DPVAAGWPPCLRMVAAIAVLTKDAGKLTMGQPLVILAPHAVEALVKQPPDRWLSNARMT
HYQALLLDTDRVQFGPVVALNPATLLPLPEEGLQHNCLDILAEAHGTRPDLTDQPLPDA
DHTWYTDGSSLLQEGQRKAGAAVTTETEVIWAKALPAGTSAQRAELIALTQALKMAEGK
KLNVYTDSRYAFATAHIHGEIYRRRGWLTSEGKEIKNKDEILALLKALFLPKRLSIIHC
PGHQKGHSAEARGNRMADQAARKAAITETPDTSTLLIENSSP"
CDS 6988..7008
/codon_start=1
/label=SV40 NLS
/note="nuclear localization signal of SV40 (simian virus
40) large T antigen"
/translation="PKKKRKV"
CDS 7017..7034
/codon_start=1
/label=6xHis
/note="6xHis affinity tag"
/translation="HHHHHH"
polyA_signal 7063..7287
/label=bGH poly(A) signal
/note="bovine growth hormone polyadenylation signal"
primer_bind complement(7358..7374)
/label=M13 rev
/note="common sequencing primer, one of multiple similar
variants"
protein_bind complement(7382..7398)
/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 complement(7406..7436)
/label=lac promoter
/note="promoter for the E. coli lac operon"
protein_bind complement(7451..7472)
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
primer_bind complement(7589..7606)
/label=L4440
/note="L4440 vector, forward primer"
rep_origin complement(7760..8348)
/direction=LEFT
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
CDS complement(8519..9379)
/codon_start=1
/gene="bla"
/product="beta-lactamase"
/label=AmpR
/note="confers resistance to ampicillin, carbenicillin, and
related antibiotics"
/translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVEYS
PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
EPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
LIKHW"
promoter complement(9380..9484)
/label=AmpR promoter
primer_bind complement(9563..9582)
/label=pRS-marker
/note="pRS vectors, use to sequence yeast selectable
marker"