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タイトル: Structures of the SEp22 dodecamer, a Dps-like protein from Salmonella enterica subsp. enterica serovar Enteritidis
著者: Miyamoto, Takanori
Asahina, Yasuko
Miyazaki, Shohei
Shimizu, Hidetoshi
Ohto, Umeharu
Noguchi, Shuji
Satow, Yoshinor
キーワード: DNA-binding protein from starved cells
ferroxidase centre
iron ions
Salmonella enterica subsp. enterica serovar Enteritidis
発行日: 2011年1月
出版者: International Union of Crystallography
掲載誌情報: Acta Crystallographica Section F: Structural Biology and Crystallization Communications. Volume67.Part1, January 2011, pp. 17-22
抄録: The crystal structure of SEp22, a DNA-binding protein from starved cells from Salmonella enterica subsp. enterica serovar Enteritidis, has been determined in two forms: the native state at 1.25 Å resolution and an iron-soaked form at 1.30 Å resolution. The SEp22 protomers form a dodecameric shell with 23 symmetry and a single iron ion per protomer was found at the ferroxidase centre in the iron-soaked form. Along the threefold axes of the 23 symmetry, hydrophilic Asp channels that consist of Asp146 were found. Iron ions may flow into the cavity of the dodecameric shell through the Asp channels.
URI: http://hdl.handle.net/2261/39545
ISSN: 17443091
出現カテゴリ:1202010 学術雑誌論文
014 自然科学


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