Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus

Sarfert, E. ; Zimmer, C. ; Gumpert, J. ; Lang, H.

Amsterdam : Elsevier
ISSN:
0167-4781
Keywords:
(Strep. hygroscopicus) ; Chromosome structure ; DNA-binding protein
Source:
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:
Biology
Chemistry and Pharmacology
Medicine
Physics
Type of Medium:
Electronic Resource
URL:
_version_ 1798292540585148417
autor Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
autorsonst Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
book_url http://linkinghub.elsevier.com/retrieve/pii/0167-4781(83)90128-8
datenlieferant nat_lic_papers
fussnote The isolation of the folded chromosomal structure from a Streptomyces strain is described. It is shown that the compact DNA structure of Streptomyces hygroscopicus is stabilized by DNA-RNA interactions. Nucleolytic cleavage decreases the sedimentation rate of the originally isolated (membrane-free) folded Streptomyces chromosome from 1500 S to 800 S or 300 S and finally to completely unfolded DNA. Data on ethidium bromide intercalation suggest a dye-induced relaxation and reintroduction of DNA supertwisting. Like naturally occurring covalently closed circular DNA and like the Escherichia coli chromosome, the folded chromosomal DNA of S. hygroscopicus has about one negative superhelix turn per 200 bp. The results further demonstrate that the isolated Streptomyces nucleoid contains a characteristic S protein which exhibits gel electrophoretic properties of a histone-like component similar to that found in E. coli or Thermoplasma acidophilum. Digestion of the nucleoid with proteinase K at 37^oC causes elimination of the S protein and unfolding of the compact structure. The S protein is also present in other species of the genus Streptomyces.
hauptsatz hsatz_simple
identnr NLZ186815646
issn 0167-4781
journal_name Biochimica et Biophysica Acta (BBA)/Gene Structure and Expression
materialart 1
package_name Elsevier
publikationsort Amsterdam
publisher Elsevier
reference 740 (1983), S. 118-124
schlagwort (Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
search_space articles
shingle_author_1 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
shingle_author_2 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
shingle_author_3 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
shingle_author_4 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
shingle_catch_all_1 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
0167-4781
01674781
Elsevier
shingle_catch_all_2 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
0167-4781
01674781
Elsevier
shingle_catch_all_3 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
0167-4781
01674781
Elsevier
shingle_catch_all_4 Sarfert, E.
Zimmer, C.
Gumpert, J.
Lang, H.
Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
(Strep. hygroscopicus)
Chromosome structure
DNA-binding protein
0167-4781
01674781
Elsevier
shingle_title_1 Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
shingle_title_2 Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
shingle_title_3 Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
shingle_title_4 Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
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source_archive Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
timestamp 2024-05-06T08:50:08.941Z
titel Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
titel_suche Folded chromosome structure and DNA-binding protein of Streptomyces hygroscopicus
The isolation of the folded chromosomal structure from a Streptomyces strain is described. It is shown that the compact DNA structure of Streptomyces hygroscopicus is stabilized by DNA-RNA interactions. Nucleolytic cleavage decreases the sedimentation rate of the originally isolated (membrane-free) folded Streptomyces chromosome from 1500 S to 800 S or 300 S and finally to completely unfolded DNA. Data on ethidium bromide intercalation suggest a dye-induced relaxation and reintroduction of DNA supertwisting. Like naturally occurring covalently closed circular DNA and like the Escherichia coli chromosome, the folded chromosomal DNA of S. hygroscopicus has about one negative superhelix turn per 200 bp. The results further demonstrate that the isolated Streptomyces nucleoid contains a characteristic S protein which exhibits gel electrophoretic properties of a histone-like component similar to that found in E. coli or Thermoplasma acidophilum. Digestion of the nucleoid with proteinase K at 37^oC causes elimination of the S protein and unfolding of the compact structure. The S protein is also present in other species of the genus Streptomyces.
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