期刊论文详细信息
FEBS Letters
SDR and MDR: completed genome sequences show these protein families to be large, of old origin, and of complex nature
Höög, Jan-Olov1  Persson, Bengt1  Jörnvall, Hans1 
[1] Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-171 77 Stockholm, Sweden
关键词: Short-chain dehydrogenase/reductase;    Medium-chain dehydrogenase/reductase;    Protein family;    Genome screening;    Duplication;    Enzyme multiplicity;    Alcohol dehydrogenase;   
DOI  :  10.1016/S0014-5793(99)00130-1
学科分类:生物化学/生物物理
来源: John Wiley & Sons Ltd.
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【 摘 要 】

Short-chain dehydrogenases/reductases (SDR) and medium-chain dehydrogenases/reductases (MDR) are protein families originally distinguished from characterisations of alcohol dehydrogenase of these two types. Screening of completed genome sequences now reveals that both these families are large, wide-spread and complex. In Escherichia coli alone, there are no fewer than 17 MDR forms, identified as open reading frames, considerably extending previously known MDR relationships in prokaryotes and including ethanol-active alcohol dehydrogenase. In entire databanks, 1056 SDR and 537 MDR forms are currently known, extending the multiplicity further. Complexity is also large, with several enzyme activity types, subgroups and evolutionary patterns. Repeated duplications can be traced for the alcohol dehydrogenases, with independent enzymogenesis of ethanol activity, showing a general importance of this enzyme activity.

【 授权许可】

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