4.2.1.81 (S,S)-tartrate - Cereibacter sphaeroides oxaloacetate + H2O - ir 363308 4.2.1.81 (S,S)-tartrate - Pseudomonas sp. oxaloacetate + H2O - ? 363308 4.2.1.81 (S,S)-tartrate no substrates are L(+)-tartrate, meso-tartrate, glyceraldehyde, glycerate, glycerol, gluconate, 6-phosphogluconate, galactonate, mannonate, mannitol or sorbitol Cereibacter sphaeroides oxaloacetate + H2O at high or low pH-values or in the presence of metal ions spontaneous decarboxylation to pyruvate ir 363308 4.2.1.81 (S,S)-tartrate mechanism in which Lys 184 initiates the reaction by abstraction of the R-proton to generate a Mg2+-stabilized enediolate intermediate, and the vinylogous beta-elimination of the 3-OH group is general acid-catalyzed by the His 322, accomplishing the anti-elimination of water. The replacement of the leaving group by solvent-derived hydrogen is stereorandom Bradyrhizobium japonicum oxaloacetate + H2O - ? 363308 4.2.1.81 (S,S)-tartrate - Cereibacter sphaeroides Si4 / DSM 8371 oxaloacetate + H2O - ir 363308 4.2.1.81 (S,S)-tartrate no substrates are L(+)-tartrate, meso-tartrate, glyceraldehyde, glycerate, glycerol, gluconate, 6-phosphogluconate, galactonate, mannonate, mannitol or sorbitol Cereibacter sphaeroides Si4 / DSM 8371 oxaloacetate + H2O at high or low pH-values or in the presence of metal ions spontaneous decarboxylation to pyruvate ir 363308 4.2.1.81 additional information involved in D-tartrate catabolism Cereibacter sphaeroides ? - ? 89 4.2.1.81 additional information involved in D-tartrate catabolism Pseudomonas sp. ? - ? 89 4.2.1.81 additional information involved in D-tartrate catabolism Cereibacter sphaeroides Si4 / DSM 8371 ? - ? 89