Expression of antigens from chromosomal and linear plasmid DNA of Borrelia coriaceae.

نویسندگان

  • G C Perng
  • R B LeFebvre
چکیده

Three recombinant plasmids containing DNA from Borrelia coriaceae, the putative agent of epizootic bovine abortion, expressed antigens in Escherichia coli that reacted with antibodies specific for B. coriaceae. Two of the recombinants each expressed a single high-molecular-weight antigen. The third recombinant expressed three smaller antigens. The DNA inserts were sized and mapped. Hybridization of the cloned inserts to pulsed-field electrophoresis samples of B. coriaceae whole-cell DNA revealed the origin of two of the inserts to be located in linear plasmids. One of these, expressing three antigens, was located in a 210-kilobase linear plasmid. A second recombinant expressed a single antigen but hybridized to at least three distinct linear plasmids. The third clone also expressed a single antigen but was demonstrated to be chromosomal in origin.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Genetic characteristics of Borrelia coriaceae isolates from the soft tick Ornithodoros coriaceus (Acari: Argasidae).

Two Borrelia isolates (CA434 and CA435) cultured from the soft tick Ornithodoros coriaceus were analyzed by contour-clamped homogeneous electric field gel electrophoresis of unrestricted and ApaI-restricted DNA, standard electrophoresis of BamHI- and HindIII-restricted DNA, Southern hybridization, restriction fragment length polymorphism and sequencing of the 16S rRNA gene, and amplification of...

متن کامل

Cloning rhoptry protein 1 (ROP1) gene of Toxoplasma gondii (RH) in expression vector

  Toxoplasma gondii contain various immunogenic antigens. The most important Toxoplasma antigens are somatic and excreted/secreted antigens. Rhoptry proteins are known as excreted/secreted antigens. These antigens have been proposed as a vaccine candidate against toxoplasmosis. The main objective of the present work was cloning rhoptry protein1 (ROP1) Gene of Toxoplasma gondii (RH) in a cloning...

متن کامل

Expression of S and pre s2 Hepatitis B Surface Antigens in Mammalian Cos-7 Cell Line

Hepatitis B virus (HBV) is a serious global health problem. The development of a safe and effective vaccinewould help infection prevention. Previous hepatitis B vaccine production involved the isolation of the noninfectious particle from chronic HBV carriers. DNA recombinant technology has been used for vaccineproduction without having been contaminated with blood-born infectious ag...

متن کامل

Identification of a protein in several Borrelia species which is related to OspC of the Lyme disease spirochetes.

Using oligonucleotide probes which have previously been shown to be specific for the ospC gene found in the Lyme disease spirochete species Borrelia burgdorferi, B. garinii, and group VS461, we detected an ospC homolog in other Borrelia species including B. coriaceae, B. hermsii, B. anserina, B. turicatae, and B. parkeri. In contrast to the Lyme disease spirochetes, which carry the ospC gene on...

متن کامل

Telomere exchange between linear replicons of Borrelia burgdorferi.

Spirochetes in the genus Borrelia carry a linear chromosome and numerous linear plasmids that have covalently closed hairpin telomeres. The overall organization of the large chromosome of Borrelia burgdorferi appears to have been quite stable over recent evolutionary time; however, a large fraction of natural isolates carry differing lengths of DNA that extend the right end of the chromosome be...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Infection and immunity

دوره 58 6  شماره 

صفحات  -

تاریخ انتشار 1990