alexa Purification and characterization of a new aldehyde oxidase from pseudomonas sp. AIU 362.


Fermentation Technology

Author(s): Kimiyasu Isobe, Yasutaka Sasaki, Michihiko Kataoka

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An aldehyde oxidase exhibiting high activity on glyoxal was purified to an electrophoretically homogenous state from Pseudomonas sp. AIU 362, which was isolated from a soil sample using a methoxyethanol medium. The enzyme oxidized not only glyoxal but also short-chain aliphatic aldehydes and aromatic aldehydes. Thus, this enzyme was classified into the aldehyde oxidase (ALOD) group. However, it was composed of four identical subunits with a molecular mass of 27 kDa, whereas other microbial ALODs were composed of three hetero subunits, and ALODs from plant and animals were composed of two identical subunits. The NH(2)-terminal sequence also showed no similarity to that of other ALODs. These results indicate that ALOD from Pseudomonas sp. AIU 362 is a new aldehyde oxidase. This ALOD was induced by 2-methoxyethanol, methanol or isopropanol.

This article was published in Journal of Bioscience and Bioengineering and referenced in Fermentation Technology

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