pSLA2-M of<i>Streptomyces rochei</i>Is a Composite Linear Plasmid Characterized by Self-Defense Genes and Homology with pSLA2-L

• YANG Yingjie

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

• KUROKAWA Toru

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

• TAKAHAMA Yoshifumi

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

• NINDITA Yosi

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

• MOCHIZUKI Susumu

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

• ARAKAWA Kenji

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

• ENDO Satoru

  Quantum Energy Applications, Graduate School of Engineering, Hiroshima University

• KINASHI Haruyasu

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

書誌事項

タイトル別名

• pSLA2-M of Streptomyces rochei Is a Composite Linear Plasmid Characterized by Self-Defense Genes and Homology with pSLA2-L

抄録

The 113,463-bp nucleotide sequence of the linear plasmid pSLA2-M of Streptomyces rochei 7434AN4 was determined. pSLA2-M had a 69.7% overall GC content, 352-bp terminal inverted repeats with 91% (321/352) identity at both ends, and 121 open reading frames. The rightmost 14.6-kb sequence was almost (14,550/14,555) identical to that of the coexisting 211-kb linear plasmid pSLA2-L. Adjacent to this homologous region an 11.8-kb CRISPR cluster was identified, which is known to function against phage infection in prokaryotes. This cluster region as well as another one containing two large membrane protein genes (orf78 and orf79) were flanked by direct repeats of 194 and 566 bp respectively. Hence the insertion of circular DNAs containing each cluster by homologous recombination was suggested. In addition, the orf71 encoded a Ku70/Ku80-like protein, known to function in the repair of double-strand DNA breaks in eukaryotes, but disruption of it did not affect the radiation sensitivity of the mutant. A pair of replication initiation genes (orf1-orf2) were identified at the extreme left end. Thus, pSLA2-M proved to be a composite linear plasmid characterized by self-defense genes and homology with pSLA2-L that might have been generated by multiple recombination events.

収録刊行物

• Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ

  Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ 75 (6), 1147-1153, 2011

  公益社団法人 日本農芸化学会

キーワード

• <I>Streptomyces</I>
• linear plasmid
• CRISPR
• <I>ku70</I>/<I>ku80</I>
• genome evolution

詳細情報

• CRID: 1390282681454900480
• NII論文ID: 10029328316
• NII書誌ID: AA10824164
• DOI: 10.1271/bbb.110054
• ISSN: 13476947
• ISSN: 09168451
• NDL書誌ID: 11132001
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11132001
• Web Site: http://www.tandfonline.com/doi/pdf/10.1271/bbb.110054
• 本文言語コード: en
• データソース種別:
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