Inclusion of a matrix-attached region in a 7SK pol III vector increases the efficiency of shRNA-mediated gene silencing in embryonic carcinoma cells.

abstract：:The mercury(II)-resistance transposons Tn502 and Tn512 were sequenced and shown to be members of the Tn5053 family. They are currently the sole representatives from the clinical setting and were obtained from geographically disparate Pseudomonas aeruginosa strains. The family is comprised of six novel transposons that...

journal_title：Plasmid

authors： Petrovski S,Blackmore DW,Jackson KL,Stanisich VA

更新日期：2011-01-01 00:00:00

abstract：:Dictyostelium mucoroides plasmids Dmp1 and Dmp2 are naturally occurring compatible members of the Dictyostelium Ddp1 plasmid family found in the same wild isolate strain. The nucleotide sequences of Dmp1 (5983 bp) and Dmp2 (6018 bp) are 74% identical and each carries open reading frames (ORFs) similar to the G1 and G5...

journal_title：Plasmid

authors： Kiyosawa H,Hughes JE,Welker DL

更新日期：1994-03-01 00:00:00

abstract：:Plasmid pT181 is a small multicopy plasmid from Staphylococcus aureus that belongs to incompatibility group 3 and expresses two distinct types of incompatibility, Inc3A and Inc3B. Inc3A incompatibility is expressed by the primary replication control determinant, copA, which specifies two small transcripts, RNA I and R...

journal_title：Plasmid

authors： Highlander SK,Novick RP

更新日期：1990-01-01 00:00:00

abstract：:Rolling circle-replicating plasmids constitute a vast family that is particularly abundant in, but not exclusive of, Gram-positive bacteria. These plasmids are constructed as cassettes that harbor genes involved in replication and its control, mobilization, resistance determinants and one or two origins of lagging str...

journal_title：Plasmid

authors： Lorenzo-Díaz F,Fernández-López C,Garcillán-Barcia MP,Espinosa M

更新日期：2014-07-01 00:00:00

abstract：:Avirulence gene D (avrD) in strain PT23 of Pseudomonas syringae pv. tomato (Pst) specifies the production of syringolides, which are elicitors of plant defense reactions. An 83-kb indigenous plasmid (pPT23B) that carries avrD has been mapped and characterized and a putative par region was identified. pPT23B contains a...

journal_title：Plasmid

authors： Murillo J,Shen H,Gerhold D,Sharma A,Cooksey DA,Keen NT

更新日期：1994-05-01 00:00:00

abstract：:Horizontal transfer of genes encoding phenol degradation (pheBA) in the environment has been previously described. Complete or partial phe-operon was redetected in plasmids of several indigenous Pseudomonas strains isolated from the river water. The sequences of up- and downstream regions of the acquired phe-DNA in ei...

journal_title：Plasmid

authors： Peters M,Tomikas A,Nurk A

更新日期：2004-11-01 00:00:00

abstract：:Plasmid RK2 codes for two species of the replication initiator protein TrfA (33 and 44 kDa). Both polypeptides are strongly associated with membrane fractions of Escherichia coli host cells (W. Firshein and P. Kim, Mol. Microbiol. 23, 1-10, 1997). We investigated the role of a 12-amino-acid hydrophobic region (HR) in ...

journal_title：Plasmid

authors： Kim PD,Rosche TM,Firshein W

更新日期：2000-05-01 00:00:00

abstract：:Mutations that increase the copy number of the pSC101 replicon have been used for construction of new cloning vectors. Replacement of glutamate at position 93 in RepA yields plasmids that replicate at medium (27 copies/cell) and high (approximately 240 copies/cell) copy numbers. Based on the crystal structure of RepE,...

journal_title：Plasmid

authors： Peterson J,Phillips GJ

更新日期：2008-05-01 00:00:00

abstract：:Two improved Deinococcus radiodurans-Escherichia coli shuttle vectors have been constructed. pI3 is a 16-kb plasmid that confers chloramphenicol resistance in D. radiodurans (CmR, cat) and ampicillin resistance in E. coli (ApR) and contains a multiple cloning site that does not interrupt sequences necessary for replic...

journal_title：Plasmid

authors： Masters CI,Minton KW

更新日期：1992-11-01 00:00:00

abstract：:Variovorax sp. strain DB1 and Pseudomonas pickettii strain 712 are 2,4-dicholorophenoxy-acetic acid (2,4-D)-degrading bacteria, which were isolated from agricultural soils in Republic of Korea and USA, respectively. Each strain harbors a 2,4-D degradative plasmid and is able to utilize 2,4-D as the sole source of carb...

journal_title：Plasmid

authors： Kim DU,Kim MS,Lim JS,Ka JO

更新日期：2013-05-01 00:00:00

abstract：:A chimeric plasmid, pRS7Rep (6.1 kb), was constructed using the replication region of pRS7, a large plasmid from Oenococcus oeni, and pEM64, a plasmid derived from pIJ2925 and containing a gene for resistance to chloramphenicol. pRS7Rep is a shuttle vector that replicates in Escherichia coli using its pIJ2925 componen...

journal_title：Plasmid

authors： Rodríguez MC,Alegre MT,Martín MC,Mesas JM

更新日期：2015-01-01 00:00:00

abstract：:Corynebacterium glutamicum is an industrial microorganism for production of amino acids. However, the metabolic engineering in C. glutamicum has been retarded due to lack of suitable vectors. In this study, we have constructed a shuttle vector pDXW-10 which harbors a large multiple cloning site suitable for cloning mu...

journal_title：Plasmid

authors： Xu D,Tan Y,Shi F,Wang X

更新日期：2010-09-01 00:00:00

abstract：:Pseudomonas putida is a highly attractive production system for industrial needs. However, for its improvement as a biocatalyst at the industrial level, modulation of its gene expression is urgently needed. We report the construction of a plasmid expressing a small RNA-based system with the potential to be used for di...

journal_title：Plasmid

authors： Apura P,Saramago M,Peregrina A,Viegas SC,Carvalho SM,Saraiva LM,Arraiano CM,Domingues S

更新日期：2020-05-01 00:00:00

abstract：:A putative insertion sequence (IS1473) has been cloned and sequenced. The 1087-bp element was found between the moaA and the ndhA genes in the upstream region of the nicotine dehydrogenase (ndh) operon in the 160-kb pAO1 plasmid of Arthrobacter nicotinovorans. It is flanked by an imperfect repeat of 33 bp and carries ...

journal_title：Plasmid

authors： Menéndez C,Igloi GL,Brandsch R

更新日期：1997-01-01 00:00:00

abstract：:Two independently isolated temperature-sensitive bacteriophage that are specific for enterobacterial hosts harboring HI and HII plasmids were characterized to determine if any identifiable differences existed between them. The traits examined included adsorption pattern of phage to H pili, bacteriophage size, sensitiv...

journal_title：Plasmid

authors： Maher D,Sherburne R,Taylor DE

更新日期：1991-09-01 00:00:00

abstract：:Expression vectors for industrial production should be stable and allow tight control of protein synthesis. This is necessary to ensure plasmid transmission to daughter cells in order to achieve a stable population capable of synthesizing high amounts of the target protein. A high-copy-number plasmid, pAE, was previou...

journal_title：Plasmid

authors： Eguia FAP,Ramos HR,Kraschowetz S,Omote D,Ramos CRR,Ho PL,Carvalho E,Gonçalves VM

更新日期：2018-06-01 00:00:00

abstract：:Borrelia species comprise a unique genus of bacterial pathogens. These organisms contain a segmented genome with up to two dozen plasmids ranging in size from 5 kb up to about 200 kb. The plasmids have also been referred to as mini-chromosomes or essential genetic elements, as some of them carry information important ...

journal_title：Plasmid

authors： Chaconas G,Norris SJ

更新日期：2013-09-01 00:00:00

abstract：:We report herein the isolation and molecular characterization of pBGR1, the first native plasmid isolated from the genus Bartonella. Cloning and sequencing revealed a 2725-base pair (bp) cryptic plasmid comprising two open reading frames of considerable length, which were designated rep and mob. The regions containing...

journal_title：Plasmid

authors： Seubert A,Falch C,Birtles RJ,Schulein R,Dehio C

更新日期：2003-01-01 00:00:00

abstract：:Heterologous expression in Escherichia coli is often limited by yield and solubility of the foreign protein in the bacterial cytoplasm. In many cases, overexpression also results in growth inhibition. In order to produce retroviral proteins that are especially difficult to overexpress in E. coli, we designed a set of ...

journal_title：Plasmid

authors： Valverde V,Duplan H,Knibiehler M,Masson JM

更新日期：1994-07-01 00:00:00

abstract：:CspA has been identified as a major cold-shock protein in Escherichia coli. CspA binds to RNAs which are abnormally folded at low temperature and then acts as an RNA chaperone unfolding those RNAs. The dramatic expression of cspA at low temperature is contributed by posttranscriptional stability and robust translatabi...

journal_title：Plasmid

authors： Kang N,Choi E,Kim SG,Hwang J

更新日期：2015-09-01 00:00:00

abstract：:We have cloned and characterized an insertion sequence from Leuconostoc mesenteroides subsp. cremoris strain DB1165. This element, designated IS1165, is 1553 bp, has imperfect inverted repeat ends, contains an open reading frame of 1236 bp, and is not related to any previously described insertion sequence. The copy nu...

journal_title：Plasmid

authors： Johansen E,Kibenich A

更新日期：1992-05-01 00:00:00

abstract：:A small cryptic plasmid designated pHW15 was isolated from Rahnella genomospecies 2 WMR15 and its complete nucleotide sequence was determined. The plasmid contained 3002 bp with a G+C content of 47.4%. The origin of replication was identified by deletion analysis as a region of about 600 bp. This region had an identit...

journal_title：Plasmid

authors： Rozhon WM,Petutschnig EK,Jonak C

更新日期：2006-11-01 00:00:00

abstract：:The incompatibility region of the Streptomyces plasmid pSL1 was identified as a 240-bp segment, though some other function from the vector plasmid was also necessary. A 540-bp fragment including the 240-bp region was enough for full expression of incompatibility. Inserted mutation analysis led to a more detailed locat...

journal_title：Plasmid

authors： Urabe H,Shindoh Y,Nakano MM,Ogawara H

更新日期：1987-03-01 00:00:00

abstract：:The fission yeast Schizosaccharomyces pombe is an attractive host for heterologous gene expression. However, expression systems for industrially viable large-scale fermentations are scarce. Several inducible expression vectors for S. pombe have been reported, with the strong thiamine-repressible nmt1+ promoter or deri...

journal_title：Plasmid

authors： Hennig S,Hornauer N,Rödel G,Ostermann K

更新日期：2018-01-01 00:00:00

abstract：:This review provides a historical perspective of the major findings that contributed to our current understanding of plasmid rolling-circle (RC) replication. Rolling-circle-replicating (RCR) plasmids were discovered approximately 20 years ago. The first of the RCR plasmids to be identified were native to Gram-positive...

journal_title：Plasmid

authors： Khan SA

更新日期：2005-03-01 00:00:00

abstract：:A cell clone (cl.2) having an atypical transformed morphology was isolated from a murine C127 cell culture experimentally infected with a bovine papillomavirus type 1 (BPV-1) virion preparation. cl.2 cells exhibited minimal transformed characteristics and contained multiple copies of a BPV-1 plasmid with a molecular s...

journal_title：Plasmid

authors： Burnett S,Moreno-Lopez J,Pettersson U

更新日期：1988-07-01 00:00:00

abstract：:The genus Bacteroides are gram-negative, obligate anaerobes indigenous to the gastrointestinal tract of humans and animals. The Bacteroides and other members of the Bacteroidetes phylum have diverged from the Proteobacteria. These organisms evolved a unique promoter structure for the initiation of transcription, hence...

journal_title：Plasmid

authors： Parker AC,Jeffrey Smith C

更新日期：2012-09-01 00:00:00

abstract：:A simple and rapid method for determining plasmid copy number is described. The eukaryotic luc gene is used as a marker to tag plasmid derivatives of several well-known vectors, and by measuring light activity plasmid copy number is determined. A comparative analysis using a standard hybridization procedure to estimat...

journal_title：Plasmid

authors： Coronado C,Vázquez ME,Cebolla A,Palomares AJ

更新日期：1994-11-01 00:00:00

abstract：:A combined physical and functional map of plasmid RP4 is presented including the sites for 18 restriction endonucleases. Several cleavage sites of SphI, BalI, and ApaI are suitable for the dissection of the transfer gene regions. Recombinant plasmids containing RP4 SphI fragments were constructed to assist in localizi...

journal_title：Plasmid

authors： Lanka E,Lurz R,Fürste JP

更新日期：1983-11-01 00:00:00

abstract：:Escherichia coli strain K12 BM14, carrying plasmid R751 (51.4 kb; Tpr, Tra+, IncP), was used as donor in matings with reference strains of the six Brucella nomenspecies, not known so far to harbor naturally occurring plasmids. R751 was easily transferred to and between Brucella spp., at frequencies ranging between 10(...

journal_title：Plasmid

authors： Verger JM,Grayon M,Chaslus-Dancla E,Meurisse M,Lafont JP

更新日期：1993-03-01 00:00:00