3-Hydroxyisobutyrate Dehydrogenase is involved in Valine and Isoleucine degradation in A. thaliana

Running title: 3-Hydroxyisobutyrate Dehydrogenase of Arabidopsis thaliana 1 2 3 To whom correspondence should be addressed: Hans-Peter Braun, Institut für Pflanzenge4 netik, Leibniz Universität Hannover, Herrenhäuser Str. 2, 30419 Hannover, Germany, Tel.: 5 +49 511 7622674, Fax: +49 511 76214351, mail: [email protected] 6 7 8 9 3-Hydroxyisobutyrate Dehydrogenase is involved in both, Valine and 10 Isoleucine degradation in Arabidopsis thaliana 11 12 13 14 Peter Schertl, Lennart Danne, Hans-Peter Braun 15 16 17 18 1 Institut für Pflanzengenetik, Leibniz Universität Hannover, Herrenhäuser Str. 2, 30419 19 Hannover, Germany 20 21 22 One Sentence Summary: 23 3-Hydroxyisobutyrate Dehydrogenase, an enzyme of the branched chain amino acid breakdown 24 pathway, is involved in valine and isoleucine but not in leucine degradation in Arabidopsis thaliana. 25