CPC A23K 10/14 (2016.05) [A23K 50/30 (2016.05); A23K 50/75 (2016.05); A23K 50/80 (2016.05); A23L 3/3571 (2013.01); C12N 9/14 (2013.01); C12N 9/18 (2013.01); C12Y 301/01 (2013.01); A23V 2002/00 (2013.01); Y02A 40/818 (2018.01)] | 11 Claims |
1. A method for hydrolytic cleavage of zearalenone or at least one zearalenone derivative selected from the group of α-ZEL ((2E,7R,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]-octadeca-1(18),2,14,16-tetraen-13-one), β-ZEL (2E,7S,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(18),2,14,16-tetraen-13-one), α-ZAL ((7R,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(18),14,16-trien-13-one), β-ZAL ((7S,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(14),15,17-trien-13-one), Z14G ((2E,11S)-15-hydroxy-11-methyl-17-[(3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)-tetrahydropyran-2-yl]oxy-12-oxabicyclo[12.4.0]octadeca 1(18)2,14,16-tetraene-7,13-dione), Z14S ([(2E,11S)-15-hydroxy-11-methyl-7,13-dioxo-12-oxabicyclo[12.4.0]octadeca-1(18),2,14,16-tetraen-17-yl] hydrogen sulfate) and ZAN ((11S)-15,17-dihydroxy-11-methyl-12-oxabicyclo-[12.4.0]octadeca-1(18),14,16-triene-7,13-dione), wherein the zearalenone or at least one zearalenone derivative is/are hydrolyzed by a polypeptide having the amino acid sequence of SEQ ID NO: 12 or a functional variant thereof, wherein the sequence identity between the functional variant and the amino acid sequence of SEQ ID NO: 12 is at least 70%; and wherein the polypeptide having the amino acid sequence of SEQ ID NO: 12 or the functional variant thereof has an α,β-hydrolase structure, which is suitable for oxygen-independent and cofactor-free hydrolytic cleavage of the ester group of zearalenone or at least one zearalenone derivative selected from the group of α-ZEL ((2E,7R,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]-octadeca-1(18),2,14,16-tetraen-13-one), β-ZEL (2E,7S,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(18),2,14,16-tetraen-13-one), α-ZAL ((7R,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(18),14,16-trien-13-one), β-ZAL ((7S,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(14),15,17-trien-13-one), Z14G ((2E,11S)-15-hydroxy-11-methyl-17-[(3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)-tetrahydropyran-2-yl]oxy-12-oxabicyclo[12.4.0]octadeca 1(18)2,14,16-tetraene-7,13-dione), Z14S ([(2E,11S)-15-hydroxy-11-methyl-7,13-dioxo-12-oxabicyclo[12.4.0]octadeca-1(18),2,14,16-tetraen-17-yl] hydrogen sulfate) and ZAN ((11S)-15,17-dihydroxy-11-methyl-12-oxabicyclo-[12.4.0]octadeca-1(18),14,16-triene-7,13-dione).
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