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タイトル: The Crystal Structure of Zinc-Containing Ferredoxin from a Thermoacidophilic Archaeon (MOLECULAR BIOLOGY AND INFORMATION-Biopolymer Structure)
著者: Fujii, Tomomi
Hata, Yasuo
キーワード: X-ray analysis
Zinc
Iron-sulfur cluster
Thermostability
発行日: Mar-1999
出版者: Institute for Chemical Research, Kyoto University
誌名: ICR Annual Report
巻: 5
開始ページ: 48
終了ページ: 49
抄録: The crystal structure of ferredoxin from thermoacidophilic archaeon Sulfolobus sp. strain 7 was determined by X-ray diffraction analysis at 2.0 A resolution. The structure of the archaeal ferredoxin consists of two parts: core fold part and the N-terminal extension part. The distinct structural feature of this archaeal ferredoxin lies in the zinc-binding center where the zinc ion is tetrahedrally ligated by four amino acid residues. The zinc ion in the zinc-binding center is located at the interface between the core fold and the N-terminal extension, and connects the b-sheet in the N-terminal extension and the central b-sheet in the core fold through the zinc ligation. Thus the zinc ion plays an important role in stabilizing the structure of the present archaeal ferredoxin by connecting the N-terminal extension and the core fold, which may be common to thermoacidophilic archaeal ferredoxins.
URI: http://hdl.handle.net/2433/65184
出現コレクション:Vol.5 (1998)

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