We used directed evolution to enhance the thermostability of formaldehyde dehydrogenase from Pseudomonas putida. At 50 degrees C, the wild-type enzyme was inactivated within 30 min, but the variants obtained retained 80% activity for at least 300 min. At room temperature (30 degrees C), the variants obtained retained <80% activity for at least 500 h (21 d).
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http://dx.doi.org/10.1271/bbb.100026 | DOI Listing |
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