Fungal alpha-amylase variants

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

Reexamination Certificate

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C435S202000, C435S201000, C435S200000, C435S183000, C435S099000, C435S098000, C435S096000, C426S020000, C536S023200

Reexamination Certificate

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07892806

ABSTRACT:
The inventors have developed a method of altering the amino acid sequence of a fungal alpha-amylase to obtain variants, and they have used the method to construct such variants. The variants may be useful for anti-staling in baked products. Accordingly, the invention provides a method of constructing fungal alpha-amylase variants based on a comparison of three-dimensional (3D) structures of the fungal alpha-amylase and a maltogenic alpha-amylase. One or both models includes a substrate. The invention also provides novel fungal alpha-amylase variants.

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