Pathway of plasmid transformation in Pneumococcus: open circular and linear molecules are active
نویسندگان
چکیده
منابع مشابه
compactifications and representations of transformation semigroups
this thesis deals essentially (but not from all aspects) with the extension of the notion of semigroup compactification and the construction of a general theory of semitopological nonaffine (affine) transformation semigroup compactifications. it determines those compactification which are universal with respect to some algebric or topological properties. as an application of the theory, it is i...
15 صفحه اولLinear and circular plasmid content in Borrelia burgdorferi clinical isolates.
The genome of Borrelia burgdorferi, the etiologic agent of Lyme disease, is composed of a linear chromosome and more than 20 linear and circular plasmids. Typically, plasmid content analysis has been carried out by pulsed-field gel electrophoresis and confirmed by Southern hybridization. However, multiple plasmids of virtually identical sizes (e.g., lp28 and cp32) complicate the interpretation ...
متن کاملHeterospecific Transformation of Pneumococcus
HEN DNA of heterospecific origin is used to transform bacteria, the yield of transformants is usually low compared with that obtained with a similar amount of homospecific DNA ( SCHAEFFER 1956; LEIDY, HAHN and ALEXANDER 1956; BRACCO, KRAUS!j, ROE and MACLEOD 1957; PAKULA, HULANICKA and WALCZAK 1958; CATLIN and CUNNINGHAM 1961). We have been investigating the cause of this inefficiency of hetero...
متن کاملGeneration of linear multigenome-length plasmid molecules in Bacillus subtilis.
Linear multigenome-length double and single stranded plasmid DNA was identified in a Bacillus subtilis ATP-dependent DNAase mutant strain (addA5) bearing plasmids pC194 or pBD95ts. Plasmid pBC30, a seg mutant of pC194, as well as some pUB110 derivatives with rearrangements external to the minimal replicon, produce high amounts of such a concatemeric DNA, even in Rec+ cells. The synthesis of thi...
متن کاملAnalysis of the organization of multicopy linear- and circular-plasmid-carried open reading frames in Borrelia burgdorferi sensu lato isolates.
Plasmid cp8.3 of Borrelia afzelii IP21 carries several open reading frames (ORFs) and a 184-bp inverted repeat (IR) element. It has been speculated that this plasmid may encode factors involved in virulence or infectivity. In this report, we have characterized the distribution, molecular variability, and organization of ORFs 1, 2, and 4 and the IR elements among isolates of the Borrelia burgdor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1981
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.146.2.517-526.1981