Glucan lyase producing 1,5-anhydrofructose
First Claim
1. An isolated and purified exo-α
- -1,4-glucan lyase enzyme selected from the group consisting of α
-1,4-glucan lyase isolated from an alga and its enzymatically active mutants.
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Abstract
The invention relates to an enzyme, exo-α-1,4-glucan lyase, capable of successively cleaving the terminal α-1,4-D-glucosidic bonds from the non-reducing ends of an α-1,4-glucan. The enzyme is selected from the group consisting of α-1,4-glucan lyase isolated from an alga and functional derivatives and analogs derived from a nucleotide sequence related to an alga α-1,4-glucan lyase. Further, a method of enzymatically cleaving the terminal α-1,4-D-glucosidic bonds from the non-reducing ends of an α-1,4-glucan, and the degradation product 1,5-anhydrofructose for use as an oxygen radical scavenger or anti-oxidant and/or as a sugar substitute, are disclosed. Additionally, a method of producing an enzyme capable of successively cleaving the terminal α-1,4-glucosidic bonds from the non-reducing ends of an α-1,4-glucan; an antibody which binds to the amino acid sequence of the enzyme, and a DNA or RNA probe which recognizes a nucleotide sequence coding for the enzyme, are described.
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Citations
12 Claims
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1. An isolated and purified exo-α
- -1,4-glucan lyase enzyme selected from the group consisting of α
-1,4-glucan lyase isolated from an alga and its enzymatically active mutants. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- -1,4-glucan lyase enzyme selected from the group consisting of α
Specification