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。
Kanamycin low (25 ug/ml)
- 载体名称:
- pMJ841
- 载体抗性:
- Kanamycin
- 载体长度:
- 10577 bp
- 载体类型:
- Bacterial Expression, CRISPR
- 复制子:
- ori
- 拷贝数:
- Low Copy
- 启动子:
- T7
- 克隆方法:
- Ligation Independent Cloning
- 5'引物:
- MBP-forward
- 3'引物:
- T7 terminator
pMJ841 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。
pMJ841 载体序列
LOCUS 40924_30935 10577 bp DNA circular SYN 13-MAY-2021
DEFINITION synthetic circular DNA.
ACCESSION .
VERSION .
KEYWORDS .
SOURCE synthetic DNA construct
ORGANISM synthetic DNA construct
REFERENCE 1 (bases 1 to 10577)
AUTHORS Jinek M, Chylinski K, Fonfara I, Hauer M, Doudna JA, Charpentier E
TITLE A Programmable Dual-RNA-Guided DNA Endonuclease in Adaptive
Bacterial Immunity.
JOURNAL Science. 2012 Jun 28.
PUBMED 22745249
REFERENCE 2 (bases 1 to 10577)
TITLE Direct Submission
REFERENCE 3 (bases 1 to 10577)
AUTHORS .
TITLE Direct Submission
COMMENT SGRef: number: 1; type: "Journal Article"; journalName: "Science.
2012 Jun 28."
COMMENT SGRef: number: 2; type: "Journal Article"
FEATURES Location/Qualifiers
source 1..10577
/mol_type="other DNA"
/organism="synthetic DNA construct"
CDS complement(2237..2257)
/codon_start=1
/label=TEV site
/note="tobacco etch virus (TEV) protease recognition and
cleavage site"
/translation="ENLYFQG"
CDS complement(2288..3385)
/codon_start=1
/label=MBP
/note="maltose binding protein from E. coli"
/translation="KIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEE
KFPQVAATGDGPDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYNGKLI
AYPIAVEALSLIYNKDLLPNPPKTWEEIPALDKELKAKGKSALMFNLQEPYFTWPLIAA
DGGYAFKYENGKYDIKDVGVDNAGAKAGLTFLVDLIKNKHMNADTDYSIAEAAFNKGET
AMTINGPWAWSNIDTSKVNYGVTVLPTFKGQPSKPFVGVLSAGINAASPNKELAKEFLE
NYLLTDEGLEAVNKDKPLGAVALKSYEEELAKDPRIAATMENAQKGEIMPNIPQMSAFW
YAVRTAVINAASGRQTVDEALKDAQT"
CDS complement(3389..3406)
/codon_start=1
/label=6xHis
/note="6xHis affinity tag"
/translation="HHHHHH"
RBS complement(3417..3439)
/label=RBS
/note="efficient ribosome binding site from bacteriophage
T7 gene 10 (Olins and Rangwala, 1989)"
protein_bind complement(3454..3478)
/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(3479..3497)
/label=T7 promoter
/note="promoter for bacteriophage T7 RNA polymerase"
promoter 3806..3883
/label=lacI promoter
CDS 3884..4963
/codon_start=1
/label=lacI
/note="lac repressor"
/translation="VKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAEL
NYIPNRVAQQLAGKQSLLIGVATSSLALHAPSQIVAAIKSRADQLGASVVVSMVERSGV
EACKAAVHNLLAQRVSGLIINYPLDDQDAIAVEAACTNVPALFLDVSDQTPINSIIFSH
EDGTRLGVEHLVALGHQQIALLAGPLSSVSARLRLAGWHKYLTRNQIQPIAEREGDWSA
MSGFQQTMQMLNEGIVPTAMLVANDQMALGAMRAITESGLRVGADISVVGYDDTEDSSC
YIPPLTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNTQTASPR
ALADSLMQLARQVSRLESGQ"
protein_bind 4979..5000
/label=CAP binding site
/note="CAP binding activates transcription in the presence
of cAMP."
CDS 5775..5963
/codon_start=1
/label=rop
/note="Rop protein, which maintains plasmids at low copy
number"
/translation="VTKQEKTALNMARFIRSQTLTLLEKLNELDADEQADICESLHDHA
DELYRSCLARFGDDGENL"
misc_feature 6068..6207
/label=bom
/note="basis of mobility region from pBR322"
rep_origin complement(6393..6981)
/direction=LEFT
/label=ori
/note="high-copy-number ColE1/pMB1/pBR322/pUC origin of
replication"
CDS 7103..7915
/codon_start=1
/label=KanR
/note="aminoglycoside phosphotransferase"
/translation="MSHIQRETSCSRPRLNSNMDADLYGYKWARDNVGQSGATIYRLYG
KPDAPELFLKHGKGSVANDVTDEMVRLNWLTEFMPLPTIKHFIRTPDDAWLLTTAIPGK
TAFQVLEEYPDSGENIVDALAVFLRRLHSIPVCNCPFNSDRVFRLAQAQSRMNNGLVDA
SDFDDERNGWPVEQVWKEMHKLLPFSPDSVVTHGDFSLDNLIFDEGKLIGCIDVGRVGI
ADRYQDLAILWNCLGEFSPSLQKRLFQKYGIDNPDMNKLQFHLMLDEFF"
rep_origin complement(8010..8465)
/direction=LEFT
/label=f1 ori
/note="f1 bacteriophage origin of replication; arrow
indicates direction of (+) strand synthesis"
terminator complement(8502..8549)
/label=T7 terminator
/note="transcription terminator for bacteriophage T7 RNA
polymerase"
CDS complement(8616..8633)
/codon_start=1
/label=6xHis
/note="6xHis affinity tag"
/translation="HHHHHH"
CDS complement(join(8701..10577,1..2227))
/codon_start=1
/label=dCas9
/note="catalytically dead mutant of the Cas9 endonuclease
from the Streptococcus pyogenes Type II CRISPR/Cas system"
/translation="MDKKYSIGLAIGTNSVGWAVITDEYKVPSKKFKVLGNTDRHSIKK
NLIGALLFDSGETAEATRLKRTARRRYTRRKNRICYLQEIFSNEMAKVDDSFFHRLEES
FLVEEDKKHERHPIFGNIVDEVAYHEKYPTIYHLRKKLVDSTDKADLRLIYLALAHMIK
FRGHFLIEGDLNPDNSDVDKLFIQLVQTYNQLFEENPINASGVDAKAILSARLSKSRRL
ENLIAQLPGEKKNGLFGNLIALSLGLTPNFKSNFDLAEDAKLQLSKDTYDDDLDNLLAQ
IGDQYADLFLAAKNLSDAILLSDILRVNTEITKAPLSASMIKRYDEHHQDLTLLKALVR
QQLPEKYKEIFFDQSKNGYAGYIDGGASQEEFYKFIKPILEKMDGTEELLVKLNREDLL
RKQRTFDNGSIPHQIHLGELHAILRRQEDFYPFLKDNREKIEKILTFRIPYYVGPLARG
NSRFAWMTRKSEETITPWNFEEVVDKGASAQSFIERMTNFDKNLPNEKVLPKHSLLYEY
FTVYNELTKVKYVTEGMRKPAFLSGEQKKAIVDLLFKTNRKVTVKQLKEDYFKKIECFD
SVEISGVEDRFNASLGTYHDLLKIIKDKDFLDNEENEDILEDIVLTLTLFEDREMIEER
LKTYAHLFDDKVMKQLKRRRYTGWGRLSRKLINGIRDKQSGKTILDFLKSDGFANRNFM
QLIHDDSLTFKEDIQKAQVSGQGDSLHEHIANLAGSPAIKKGILQTVKVVDELVKVMGR
HKPENIVIEMARENQTTQKGQKNSRERMKRIEEGIKELGSQILKEHPVENTQLQNEKLY
LYYLQNGRDMYVDQELDINRLSDYDVDAIVPQSFLKDDSIDNKVLTRSDKNRGKSDNVP
SEEVVKKMKNYWRQLLNAKLITQRKFDNLTKAERGGLSELDKAGFIKRQLVETRQITKH
VAQILDSRMNTKYDENDKLIREVKVITLKSKLVSDFRKDFQFYKVREINNYHHAHDAYL
NAVVGTALIKKYPKLESEFVYGDYKVYDVRKMIAKSEQEIGKATAKYFFYSNIMNFFKT
EITLANGEIRKRPLIETNGETGEIVWDKGRDFATVRKVLSMPQVNIVKKTEVQTGGFSK
ESILPKRNSDKLIARKKDWDPKKYGGFDSPTVAYSVLVVAKVEKGKSKKLKSVKELLGI
TIMERSSFEKNPIDFLEAKGYKEVKKDLIIKLPKYSLFELENGRKRMLASAGELQKGNE
LALPSKYVNFLYLASHYEKLKGSPEDNEQKQLFVEQHKHYLDEIIEQISEFSKRVILAD
ANLDKVLSAYNKHRDKPIREQAENIIHLFTLTNLGAPAAFKYFDTTIDRKRYTSTKEVL
DATLIHQSITGLYETRIDLSQLGGD"