5.3.1.4 D-fucose 221% activity compared to D-galactose 5.3.1.4 D-galactose - 5.3.1.4 D-galactose 100% activity 5.3.1.4 D-galactose at elevated temperatures in the presence of divalent metal ions 5.3.1.4 D-galactose at elevated temperatures, not dependent on divalent metal ions 5.3.1.4 L-arabinose - 5.3.1.4 L-arabinose L-arabinose isomerase is an intracellular enzyme that catalyzes the reversible isomerization of Larabinose to L-ribulose, a component of the pentose phosphate or the phosphoketolase pathways 5.3.1.4 L-arabinose L-arabinose isomerase is an intracellular enzyme that catalyzes the reversible isomerization of L-arabinose to L-ribulose, a component of the pentose phosphate or the phosphoketolase pathways 5.3.1.4 L-arabinose the enzyme has a high preference only for L-arabinose 5.3.1.4 L-arabinose 244% activity compared to D-galactose