1.4.1.8 L-2-aminobutyrate + H2O + NAD+ VDH2: preferred substrate, 158% of the activity with L-valine Streptomyces fradiae 2-oxobutyrate + NADH + NH3 VDH2: reductive amination, 100% of the activity with 2-oxoisovalerate r 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ VDH2: preferred substrate, 158% of the activity with L-valine Streptomyces fradiae 2-oxobutyrate + NADH + NH3 2-oxobutyrate is identical with alpha-ketobutyrate r 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ 68.9% of the activity with L-valine Streptomyces fradiae 2-oxobutyrate + NADH + NH3 reductive amination: 78% of the activity with 2-oxoisovalerate r 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ 68.9% of the activity with L-valine Streptomyces fradiae 2-oxobutyrate + NADH + NH3 2-oxobutyrate is identical with alpha-ketobutyrate r 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ 9% of the activity with L-leucine Priestia megaterium 2-oxobutyrate + NADH + NH3 reductive amination: 28.1% of the activity with 2-oxoisovalerate ? 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ 9% of the activity with L-leucine Priestia megaterium 2-oxobutyrate + NADH + NH3 reductive amination: 28.1% of the activity with 2-oxoisovalerate r 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ 9% of the activity with L-leucine Priestia megaterium 2-oxobutyrate + NADH + NH3 2-oxobutyrate is identical with alpha-ketobutyrate ? 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ 9% of the activity with L-leucine Priestia megaterium 2-oxobutyrate + NADH + NH3 2-oxobutyrate is identical with alpha-ketobutyrate r 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ 130% of the activity with L-valine Streptomyces coelicolor 2-oxobutyrate + NADH + NH3 - ? 258948 1.4.1.8 L-2-aminobutyrate + H2O + NAD+ preferred substrate, 92.34% of the activity with L-valine Streptomyces albus 2-oxobutyrate + NADH + NH3 2-oxobutyrate is identical with alpha-ketobutyrate r 258948