Dye-linked d-Proline Dehydrogenase from Hyperthermophilic Archaeon Pyrobaculum islandicum Is a Novel FAD-dependent Amino Acid Dehydrogenase
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چکیده
منابع مشابه
Insight into thermostability of a UDP-glucose dehydrogenase from the hyperthermophilic archaeon Pyrobaculum islandicum
Haruhiko Sakuraba*, Kazunari Yoneda, Toshihisa Ohshima 1 Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Miki-cho, Kita-gun, Kagawa761-0795, Japan Department of Bioscience, School of Agriculture, Tokai University, Kumamoto, Japan Department of Biomedical Engineering, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya Asahi-ku, ...
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The distribution of dye-linked L-amino acid dehydrogenases was investigated in several hyperthermophiles, and the activity of dye-linked L-proline dehydrogenase (dye-L-proDH, L-proline:acceptor oxidoreductase) was found in the crude extract of some Thermococcales strains. The enzyme was purified to homogeneity from a hyperthermophilic archaeon, Thermococcus profundus DSM 9503, which exhibited t...
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A ferredoxin was purified from the hyperthermophilic archaeon, Pyrobaculum islandicum. EPR spectra and metal content analyses suggested that the ferredoxin molecule contained one [3Fe-4S] and one [4Fe-4S] cluster. The ferredoxin was rapidly reduced by 2-oxoglutarate: ferredoxin oxidoreductase purified from P. islandicum, indicating that it functions physiologically as an electron sink for the r...
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We present the functional and structural characterization of the first archaeal thermostable NADP-dependent aldehyde dehydrogenase AlDHPyr1147. In vitro, AlDHPyr1147 catalyzes the irreversible oxidation of short aliphatic aldehydes at 60-85°С, and the affinity of AlDHPyr1147 to the NADP+ at 60°С is comparable to that for mesophilic analogues at 25°С. We determined the structures of the apo form...
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Amino acid dehydrogenases (L-amino acid: oxidoreductase deaminating EC 1.4.1.X) are members of the wider superfamily of oxidoreductases that catalyze the reversible oxidative deamination of an amino acid to its keto acid and ammonia with the concomitant reduction of either NAD+, NADP+ or FAD. These enzymes have been received much attention as biocatalysts for use in biosensors or diagnostic kit...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2002
ISSN: 0021-9258
DOI: 10.1074/jbc.m112272200