Patent ID: 8507240

Claim:
A non-naturally occurring phytase which has at least 80% identity to the sequence of amino acid residues 1-413 of SEQ ID NO:2 and which comprises a set of modifications selected from the group consisting of: a. S 1QGPS/K26H/E54C/A101C/K139C/Q162N/G186S/I201C/K207Q/G346S, b. Q9S/N78Q/A89A/D92Y/H115M/A132V/K139C/Q162R/Q181L/I201C/A217G/K234V/P348R, c. D33C/E54C/A101C/Y179C, d. T35A/Y48H/E54C/P75N/K76N/D77Q/N78T/D92Y/A101C/K139C/T152A/I201C/A217G/K234V/N247D/R289W/H363R, e. Y48H/E54C/D92Y/A101C/K139C/T152A/I201C/K207Q/V208T/A217G/K234V/N247D/R289W/H363R, f. Y48H/E54C/D92Y/A101C/K139C/T152A/I201C/V208T/A217G/K234V/N247D/R289W/H363R, g. Y48H/E54C/D92Y/A101C/K139C/T152A/I201C/A217G/K234V/N247D/R289W/H363R, h. Y48H/E54C/D92Y/A101C/K139C/T152A/I201C/A217G/K234V/N247W/R289W/H363R, i. Y48H/E54C/D92Y/A101C/K139C/I201C/A217G/K234V/N247D/R289W/H363R, j. Y48H/E54C/D92Y/A101C/K139C/I201C/A217G/K234V/N247W/R289W/H363R, k. Y48H/D92Y/E100W/K139C/T152A/I201C/A217G/K234V/N247W/Q256D/H363R, l. Y48H/D92Y/E100W/K139C/T152I/I201C/A217G/K234V/N247D/H363R, m. Y48H/D92Y/E100W/K139C/I201C/V208T/A217G/K234V/N247D/Q256D/H363R, n. Y48H/D92Y/E100W/K139C/I201C/A217G/K234V/N247D/Q256D/H363R, o. Y48H/D92Y/E100W/K139C/I201C/A217G/K234V/N247D/R289W/H363R, p. Y48H/D92Y/E100W/K139C/I201C/A217G/K234V/N247W/Q256D/H363R, q. E54C/D92Y/A101C/K139C/I201C/A217G/K234V/N247D/Q256D/H363R, r. E54C/D92Y/A101C/K139C/I201C/A217G/H363R, s. E540/A101C/V130L/M137L/V146I/I201V/M260L/I266V/K207Q, t. E54C/A101C/K139C/I201C, u. E54C/A101C/K139C/I201C/K207Q, v. P75N/K76N/D77Q/N78T/D92Y/E100W/K139C/I201C/A217G/K234V/N247D/Q256D/H363R, w. D92Y/E100W/K139C/D173N/P175S/I201C/A217G/K234V/N247D/Q256D/H363R, x. D92Y/E100W/K139C/I201C/A217G/K234V/N247D/H363R, and y. D92Y/E100W/K139C/I201C/A217G/K234V/N247W/Q256D/H363R, wherein each position corresponds to the position of the phytase with the sequence of amino acids 1-413 of SEQ ID NO:2.