INTEIN-MODIFIED ENZYMES, THEIR PRODUCTION AND INDUSTRIAL APPLICATION
First Claim
1. An intein modified protein comprising a target protein and an intein inserted into the target protein at a site i) immediately prior to a cysteine, threonine, or serine residue of the target protein, ii) within ten angstroms from an active site of the target protein, and iii) within 10 amino acids of a loop-β
- -sheet junction or within 10 amino acids of a loop-α
-helix junction of the target protein, wherein the target protein is a xylanase or a cellulase.
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Accused Products
Abstract
A method of predicting an intein insertion site in a protein that will lead to a switching phenotype is provided. The method includes identifying a plurality of C/T/S sites within the protein; selecting from the plurality of C/T/S/sites those that are ranked 0.75 or higher by a support vector machine, within ten angstroms of the active site of the protein, and at or near a loop-β-sheet junction or a loop-α-helix junction. A method of controlling protein activity and hosts including proteins with controlled activity are also provided. Also, intein modified proteins and plants containing intein modified proteins are provided.
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Citations
23 Claims
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1. An intein modified protein comprising a target protein and an intein inserted into the target protein at a site i) immediately prior to a cysteine, threonine, or serine residue of the target protein, ii) within ten angstroms from an active site of the target protein, and iii) within 10 amino acids of a loop-β
- -sheet junction or within 10 amino acids of a loop-α
-helix junction of the target protein, wherein the target protein is a xylanase or a cellulase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- -sheet junction or within 10 amino acids of a loop-α
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12. An intein modified protein having at least 90% identity to an amino acid sequence selected from the group consisting of SEQ ID NOS:
- 1692-1695, 1698, 1719, 1732, 1739-1742, 1745-1750, 1753-1766, 1768-1769, 1772-1773.
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13. A transgenic plant including an expression construct encoding an intein modified protein comprising a target protein and an intein inserted into the target protein at a site i) immediately prior to a cysteine, threonine, or serine residue of the target protein, ii) within ten angstroms from an active site of the target protein, and iii) within 10 amino acids of a loop-α
- -sheet junction or within 10 amino acids of a loop-β
-helix junction of the target protein, wherein the target protein is a xylanase or a cellulase. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- -sheet junction or within 10 amino acids of a loop-β
Specification