Literature DB >> 212732

DNA modifying enzymes of Agrobacterium tumefaciens: effect of DNA topoisomerase, restriction endonuclease, and unique DNA endonuclease on plasmid and plant DNA.

J M LeBon, C I Kado, L J Rosenthal, J G Chirikjian.   

Abstract

Extracts from Agrobacterium tumefaciens strain ID135 contain three enzymes that have been characterized and partially purified. The first enzyme, a DNA topoisomerase, appeared to relax only negatively twisted DNA. The second enzyme, Atu I, a type II restriction endonuclease, generated the identical DNA digestion pattern as EcoRII when several DNAs were used. The third enzyme, endonuclease A, showed a preference for superhelical DNAs as substrates. When plasmid pCK135DNA, obtained from the virulent strain IDI135 of A. tumefaciens, or plant DNA was exposed to the three enzymes, changes in DNA patterns were observed due to either conformational changes or digestion of the DNAs. These enzymes may function in vivo in the processing and incorporation of bacterial DNA in plant cells.

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Year:  1978        PMID： 212732      PMCID： PMC336058          DOI： 10.1073/pnas.75.9.4097

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  25 in total

1.  Isolation of covalently closed circular DNA of high molecular weight from bacteria.

Authors:  T C Currier; E W Nester
Journal:  Anal Biochem       Date:  1976-12       Impact factor: 3.365

2.  Acquisition of tumour-inducing ability by non-oncogenic agrobacteria as a result of plasmid transfer.

Authors:  N Van Larebeke; C Genetello; J Schell; R A Schilperoort; A K Hermans; M Van Montagu; J P Hernalsteens
Journal:  Nature       Date:  1975-06-26       Impact factor: 49.962

3.  Specificity of the S1 nuclease from Aspergillus oryzae.

Authors:  R C Wiegand; G N Godson; C M Radding
Journal:  J Biol Chem       Date:  1975-11-25       Impact factor: 5.157

4.  Characterization of purified DNA-relaxing enzyme from human tissue culture cells.

Authors:  W Keller
Journal:  Proc Natl Acad Sci U S A       Date:  1975-07       Impact factor: 11.205

5.  Plasmid required for virulence of Agrobacterium tumefaciens.

Authors:  B Watson; T C Currier; M P Gordon; M D Chilton; E W Nester
Journal:  J Bacteriol       Date:  1975-07       Impact factor: 3.490

6.  Renaturation of complementary single-stranded DNA circles: complete rewinding facilitated by the DNA untwisting enzyme.

Authors:  J J Champoux
Journal:  Proc Natl Acad Sci U S A       Date:  1977-12       Impact factor: 11.205

7.  Stable incorporation of plasmid DNA into higher plant cells: the molecular basis of crown gall tumorigenesis.

Authors:  M D Chilton; M H Drummond; D J Merio; D Sciaky; A L Montoya; M P Gordon; E W Nester
Journal:  Cell       Date:  1977-06       Impact factor: 41.582

8.  Studies on Agrobacterium tumefaciens. VIII. Avirulence induced by temperature and ethidium bromide.

Authors:  B C Lin; C I Kado
Journal:  Can J Microbiol       Date:  1977-11       Impact factor: 2.419

9.  'Single-stranded' DNA from phiX174 and M13 is cleaved by certain restriction endonucleases.

Authors:  R W Blakesley; R D Wells
Journal:  Nature       Date:  1975-10-02       Impact factor: 49.962

10.  A DNA nicking-closing enzyme encapsidated in vaccinia virus: partial purification and properties.

Authors:  W R Bauer; E C Ressner; J Kates; J V Patzke
Journal:  Proc Natl Acad Sci U S A       Date:  1977-05       Impact factor: 11.205
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  16 in total

1.  Torsional stress and local denaturation in supercoiled DNA.

Authors:  C J Benham
Journal:  Proc Natl Acad Sci U S A       Date:  1979-08       Impact factor: 11.205

2.  Restriction enzymes and their isoschizomers.

Authors:  R J Roberts
Journal:  Nucleic Acids Res       Date:  1990-04-25       Impact factor: 16.971

3.  Restriction enzymes and their isoschizomers.

Authors:  R J Roberts
Journal:  Nucleic Acids Res       Date:  1989       Impact factor: 16.971

4.  Restriction and modification enzymes and their recognition sequences.

Authors:  R J Roberts
Journal:  Nucleic Acids Res       Date:  1985       Impact factor: 16.971

5.  Restriction enzymes and their isoschizomers.

Authors:  R J Roberts
Journal:  Nucleic Acids Res       Date:  1988       Impact factor: 16.971

6.  DNA topoisomerase from Agrobacterium tumefaciens: purification and catalytic properties.

Authors:  J M LeBon; S Agarwal; J G Chirikjian
Journal:  Nucleic Acids Res       Date:  1981-02-25       Impact factor: 16.971

Review 7.  Restriction and modification enzymes and their recognition sequences.

Authors:  R J Roberts
Journal:  Nucleic Acids Res       Date:  1981-01-10       Impact factor: 16.971

8.  Restriction and modification enzymes and their recognition sequences.

Authors:  R J Roberts
Journal:  Nucleic Acids Res       Date:  1982-03-11       Impact factor: 16.971

Review 9.  Restriction and modification enzymes and their recognition sequences.

Authors:  R J Roberts
Journal:  Nucleic Acids Res       Date:  1980-01-11       Impact factor: 16.971

10.  Mapping the in vivo arrangement of nucleosomes on simian virus 40 chromatin by the photoaddition of radioactive hydroxymethyltrimethylpsoralen.

Authors:  G W Robinson; L M Hallick
Journal:  J Virol       Date:  1982-01       Impact factor: 5.103
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