Procaryotic xylose isomerase muteins

Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Isomerase

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435 691, 435 712, 435 91, 435169, 4351723, 4352523, 4353201, 435886, 536 27, 935 14, 935 29, 935 61, 935 72, C12N 992, C12N 1509, C12N 1552

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050413783

ABSTRACT:
Xylose isomerase (XI) muteins useful in the conversion of glucose to fructose or xylose to xylulose are obtained in usable amounts by protein structural and recombinant DNA methods, including x-ray crystallography, cloning, computer graphic modeling and site-directed mutagenesis and expression of the bacterial DNA sequences encoding native procaryotic xylose isomerase. These native sequences are altered to encode the xylose isomerase muteins having improved catalytic function and/or thermostability.

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