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| 产品名称： | pNK2884 plasmid in E. coli |
|---|---|
| 商品货号： | TS158280 |
| Designations： | pNK2884 plasmid in E. coli |
| Species： | Escherichia coli (Migula) Castellani and Chalmers |
| Depositors： | N Kleckner |
| Applications： | produces protein transposase, Tn10, ats1 ats2 (ATS) |
| Vector： | Total sizexa0of construct (kb): 6.1 Marker: ampR, cmlR Vector:xa0 pBR322 derivative (see description above) Vector type: plasmid Vector size (kb): 2.1 Insert site: EcoRI |
| Insert： | Insert size (kb): 4
Gene: transposase, Tn10, ats1 ats2 (ATS)DNA: genomic Source: Escherichia coli Insert ends: EcoRI Insert lengths(kb): 4.0
Gene product: transposase, Tn10, ats1 ats2 (ATS)
Target Gene: transposase, Tn10, ats1 ats2 (ATS) |
| Insert Size (kb)： | 4.0 |
| Media： | ATCC® Medium 1227: LB Medium (ATCC medium 1065) with 50 mcg/ml ampicillin |
| Biosafety Level： | 1
Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country. |
| Shipping Information： | Freeze dried E. coli containing the plasmid |
| Comments： | Restriction digests of the clone give the following sizes (kb): EcoRI--2.5, 2.1, 1.7; HindIII--4.7, 1.5; PstI--6.2. This cassette is inserted into the HindIII site (original nt 2272) of the ATS transposase-containing EcoRI fragment of pNK2881, ATCC 77351. Construct useful for general transposon mutagenesis in Escherichia coli. pBR322 was modified by deletion of bp 75-2352 and destruction (by filling in) of the HindIII site. Contains the ats1 ats2 transposase gene that permits relaxed insertion specificity (altered target specificity, ATS). Expression is regulated by the Ptac promoter, inducible by IPTG. The transposase segment extends from IS10R to the EcoRI site at nt 3140 of Tn10, with a deletion of nucleotides 1329-1942 to remove the transposase binding site. Contains a 1.4 kb mini-Tn10 cassette conferring chloramphenicol resistance, bounded by inverted repeats of the outermost 70 bp of IS10R and embedded in 40 bp of lambdacI terminating in HindIII sites. Transcription from the Ptac promoter is in a direction opposite to that of amp. The order of the major features in this plasmid is EcoRI - Ptac - ATS transposase - mini-Tn10 cam - EcoRI - pMB ori - ampR. |
| Classification： | Enterobacteriaceae, Escherichia |
| References： | Kleckner N, et al. Uses of transposons with emphasis on Tn10. Methods Enzymol. 204: 139-180, 1991. PubMed: 1658561 |