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:
pGERM
载体抗性:
Ampicillin
载体长度:
4807 bp
载体类型:
Bacteroides Plasmid
载体来源:
Shoemaker,N.B., Wang,G.R. and Salyers,A.A.
拷贝数:
High copy number
感受态:
stbl3
培养温度:
37℃

pGERM 载体图谱

pGERM4807 bp6001200180024003000360042004800lacZ-alphalac operatorlac promoterCAP binding sitetraJorigin of transfer from 56 kb circular plasmid RK2oriAmpRermG

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。

pGERM 载体序列

LOCUS       pGERM        4807 bp DNA     circular SYN 26-JUL-2024
DEFINITION  PGERM gene disruption vector, complete sequence.
ACCESSION   EF155418
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 4807)
  AUTHORS   Shoemaker NB, Wang GR, Salyers AA.
  TITLE     Multiple gene products and sequences required for excision of the 
            mobilizable integrated Bacteroides element NBU1
  JOURNAL   J. Bacteriol. 182 (4), 928-936 (2000)
  PUBMED    10648516
REFERENCE   2  (bases 1 to 4807)
  AUTHORS   Chiang HC, Manchester JK, Gordon JI.
  TITLE     Regulation of nitrogen metabolism by a novel hybrid two-component 
            system protein in a prominent human gut symbiont, Bacteroides 
            thetaiotaomicron
  JOURNAL   Unpublished
REFERENCE   3  (bases 1 to 4807)
  AUTHORS   Chiang HC, Manchester JK, Gordon JI.
  TITLE     Direct Submission
  JOURNAL   Submitted (03-DEC-2006) Center for Genome Sciences, Washington 
            University School of Medicine, 4444 Forest Park Ave. Campus Box 
            8510, Saint Louis, MO 63108, USA
REFERENCE   4  (bases 1 to 4807)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"; journalName: "J. 
            Bacteriol."; date: "2000"; volume: "182"; issue: "4"; pages: 
            "928-936"
COMMENT     SGRef: number: 2; type: "Journal Article"; journalName: 
            "Unpublished"
COMMENT     SGRef: number: 3; type: "Journal Article"; journalName: "Submitted 
            (03-DEC-2006) Center for Genome Sciences, Washington University 
            School of Medicine, 4444 Forest Park Ave. Campus Box 8510, Saint 
            Louis, MO 63108, USA"
FEATURES             Location/Qualifiers
     source          1..4807
                     /mol_type="other DNA"
                     /label=pGERM is pUC19 with the RK2 oriT and ermG
                     /note="pGERM is pUC19 with the RK2 oriT and ermG"
                     /db_xref="taxon:433620"
                     /organism="pGERM gene disruption vector"
     CDS             complement(44..367)
                     /codon_start=1
                     /gene="lacZ fragment"
                     /product="LacZ-alpha fragment of beta-galactosidase"
                     /label=lacZ-alpha
                     /translation="MTMITPSLHACRSTLEDPRVPSSNSLAVVLQRRDWENPGVTQLNR
                     LAAHPPFASWRNSEEARTDRPSQQLRSLNGEWRLMRYFLLTHLCGISHRIWCTLSTICS
                     DAA"
     primer_bind     277..293
                     /label=M13 fwd
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     misc_feature    294..350
                     /label=MCS
                     /note="pUC18/19 multiple cloning site"
     primer_bind     complement(363..379)
                     /label=M13 rev
                     /note="common sequencing primer, one of multiple similar 
                     variants"
     protein_bind    387..403
                     /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)."
     promoter        complement(411..441)
                     /label=lac promoter
                     /note="promoter for the E. coli lac operon"
     protein_bind    456..477
                     /label=CAP binding site
                     /bound_moiety="E. coli catabolite activator protein"
                     /note="CAP binding activates transcription in the presence 
                     of cAMP."
     CDS             complement(709..1080)
                     /codon_start=1
                     /gene="traJ"
                     /product="oriT-recognizing protein"
                     /label=traJ
                     /translation="MADETKPTRKGSPPIKVYCLPDERRAIEEKAAAAGMSLSAYLLAV
                     GQGYKITGVVDYEHVRELARINGDLGRLGGLLKLWLTDDPRTARFGDATILALLAKIEE
                     KQDELGKVMMGVVRPRAEP"
     oriT            1113..1224
                     /label=origin of transfer from 56 kb circular plasmid RK2
                     /note="origin of transfer from 56 kb circular plasmid RK2"
     oriT            1113..1222
                     /note="incP origin of transfer"
     rep_origin      complement(1543..2131)
                     /direction=LEFT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"
     gene            complement(2302..3162)
                     /gene="AmpR"
                     /label=AmpR
     CDS             complement(2302..3162)
                     /codon_start=1
                     /transl_table=11
                     /gene="AmpR"
                     /product="beta lactamase"
                     /label=AmpR
                     /protein_id="ABO69572.1"
                     /translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGYI
                     ELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVEYS
                     PVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRLDRW
                     EPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPLLRSA
                     LPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIAEIGAS
                     LIKHW"
     gene            3650..4384
                     /gene="ermG"
                     /label=ermG
     CDS             3650..4384
                     /codon_start=1
                     /transl_table=11
                     /gene="ermG"
                     /product="rRNA methyltransferase"
                     /label=ermG
                     /protein_id="ABO69573.1"
                     /translation="MNKVNIKDSQNFITSKYHIEKIMNCISLDEKDNIFEIGAGKGHFT
                     AGLVKRCNFVTAIEIDSKLCEVTRNKLLNYPNYQIVNDDILKFTFPSHNPYKIFGSIPY
                     NISTNIIRKIVFESSATISYLIVEYGFAKMLLDTNRSLALLLMAEVDISILAKIPRYYF
                     HPKPKVDSTLIVLKRKPAKMAFKERKKYETFVMKWVNKEYEKLFTKNQFNKALKHARIY
                     DINNISFEQFVSLFNSYKIFNG"