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  • 1
    Electronic Resource
    Electronic Resource
    Construction ofClostridium butyricum hybrid plasmids and transfer toBacillus subtilis (1985)
    Springer
    Applied microbiology and biotechnology 23 (1985), S. 114-122 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Small plasmids were isolated from type strains ofClostridium butyricum. Strain NCIB 7423 carries one plasmid (pCBU1) of 6.4 kb, whereas strain NCTC 7423 carries two unrelated plasmids of 6.3 kb (pCBU2) and 8.4 kb (pCBU3). Cleavage sites for 18 restriction endonucleases have been mapped on these plasmids and detailed physical maps are presented. For the purpose of developing vector plasmids for gene cloning in saccharolytic clostridia these crypticC. butyricum plasmids were joined to a selectable marker that will likely be expressed in clostridia. This was achieved by cloning the clostridial plasmids into theE. coli vector pBR322 carrying the chloramphenicol acetyltransferase (CAT) gene from theStaphylococcus aureus plasmid pC194. The recombinant plasmids were tested for their ability to confer chloramphenicol resistance toBacillus subtilis. Hybrid plasmids (pHL105, pHL1051) derived from pCBU2 were identified, which are capable of replication and expression of theS. aureus drug resistance marker in bothE. coli andB. subtilis. No structural instability was detected upon retransformation of pHL105 fromB. subtilis intoE. coli. The recombinant plasmids might thus be useful as shuttle vectors for the gene transfer betweenE. coli and a wide range of bacilli and clostridia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01982727
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Construction ofClostridium butyricum hybrid plasmids and transfer toBacillus subtilis (1985)
    Springer
    Applied microbiology and biotechnology 23 (1985), S. 114-122 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Small plasmids were isolated from type strains ofClostridium butyricum. Strain NCIB 7423 carries one plasmid (pCBU1) of 6.4 kb, whereas strain NCTC 7423 carries two unrelated plasmids of 6.3 kb (pCBU2) and 8.4 kb (pCBU3). Cleavage sites for 18 restriction endonucleases have been mapped on these plasmids and detailed physical maps are presented. For the purpose of developing vector plasmids for gene cloning in saccharolytic clostridia these crypticC. butyricum plasmids were joined to a selectable marker that will likely be expressed in clostridia. This was achieved by cloning the clostridial plasmids into theE. coli vector pBR322 carrying the chloramphenicol acetyltransferase (CAT) gene from theStaphylococcus aureus plasmid pC194. The recombinant plasmids were tested for their ability to confer chloramphenicol resistance toBacillus subtilis. Hybrid plasmids (pHL105, pHL1051) derived from pCBU2 were identified, which are capable of replication and expression of theS. aureus drug resistance marker in bothE. coli andB. subtilis. No structural instability was detected upon retransformation of pHL105 fromB. subtilis intoE. coli. The recombinant plasmids might thus be useful as shuttle vectors for the gene transfer betweenE. coli and a wide range of bacilli and clostridia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00938963
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Cloning of two chloramphenicol acetyltransferase genes from Clostridium butyricum and their expression in Escherichia coli and Bacillus subtilis (1988)
    Springer
    Molecular genetics and genomics 214 (1988), S. 328-332 
    Details
    ISSN: 1617-4623
    Keywords: Recombinant DNA ; Chloramphenicol resistance ; cat gene ; Plasmids pC194 and pUB110 ; Inducible gene expression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two non-homologous chloramphenicol (Cm) acetyltransferase (CAT) genes, designated catA and catB, were cloned from Clostridium butyricum type strains and characterized by restriction mapping. Both genes are efficiently expressed in Escherichia coli and Bacillus subtilis. In contrast to analogous genes from staphylococci and bacilli, gene expression is not dependent on induction by Cm. The genes are considered as chromosomal, since no association with endogenous plasmids was detectable. Southern hybridization revealed a homology between catA and the staphylococcal Cm resistance plasmid, pC194. The subunit size of the clostridial CAT enzymes expressed in E. coli was determined as 22.5 kDa (catA) and 24 kDa (catB), respectively. The C. butyricum cat genes provide potentially useful selection markers for the construction of cloning vectors from cryptic clostridial plasmids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00337731
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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