Journal
ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS
Volume 69, Issue -, Pages 719-722Publisher
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1744309113014036
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [24109017]
- Japan Society for the Promotion of Sciences [21510237]
- Academia Sinica
- National Synchrotron Radiation Research Center (Taiwan)
- Grants-in-Aid for Scientific Research [21510237, 24109017] Funding Source: KAKEN
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The crystal structure of peroxiredoxin from the anaerobic hyperthermophilic archaeon Pyrococcus horikoshii (PhPrx) was determined at a resolution of 2.25 angstrom. The overall structure was a ring-type decamer consisting of five homodimers. Citrate, which was included in the crystallization conditions, was bound to the peroxidatic cysteine of the active site, with two O atoms of the carboxyl group mimicking those of the substrate hydrogen peroxide. PhPrx lacked the C-terminal tail that forms a 32-residue extension of the protein in the homologous peroxiredoxin from Aeropyrum pernix (ApPrx).
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