Evonik Operations Gmbh

Evonik Technochemie Gmbh

Evonik Industries Ag

Heiko Schuster

Andreas Karau

Ulrich Schwaneberg

Ronny Martinez

Hemanshu Mundhada

Steffen Osswald

Jurgen Roos

Ursula Holter

Jürgen Roos

The present invention relates to a hydantoinase having an amino acid sequence selected from (i) or (ii), with (i) amino acid sequence selected from SEQ ID NO: 6-20 and SEQ ID NO: 73-119 (ii) amino acid sequence wherein in the amino acid sequence of SEQ ID NO: 6-20 and SEQ ID NO: 73-119, 1 to 75 amino acid residues have been substituted, deleted, inserted and/or added, and wherein further the catalytic activity of the hydantoinase is higher by a factor of at least 1.2 than the catalytic activity of the hydantoinase having amino acid sequence SEQ ID NO: 1. The present invention further relates to a process for preparing amino acids, wherein said hydantoinase is used.

Mutants of hydantoinase

The present invention relates to a hydantoinase having an amino acid sequence selected from (i) or (ii), with (i) amino acid sequence selected from SEQ ID NO: 6-20 and SEQ ID NO: 73-119 (ii) amino acid sequence wherein in the amino acid sequence of SEQ ID NO: 6-20 and SEQ ID NO: 73-119, 1 to 75 amino acid residues have been substituted, deleted, inserted and/or added, and wherein further the catalytic activity of the hydantoinase is higher by a factor of at least 1.2 than the catalytic activity of the hydantoinase having amino acid sequence SEQ ID NO: 1, The present invention further relates to a process for preparing amino acids, wherein said hydantoinase is used.

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Hanau, Germany

Heiko Schuster