2-[(L-alanin-3-ylcarbamoyl)methyl]-3-(2-aminoethylcarbamoyl)-2-hydroxypropanoate + AMP + diphosphate => 2-[(2-aminoethylcarbamoyl)methyl]-2-hydroxybutanedioate + (S)-2,3-diaminopropanoate + ATP
2-[(l-alanin-3-ylcarbamoyl)methyl]-3-(2-aminoethylcarbamoyl)-2-hydroxypropanoate + amp + diphosphate => 2-[(2-aminoethylcarbamoyl)methyl]-2-hydroxybutanedioate + (s)-2,3-diaminopropanoate + atp
2-[(L-alanin-3-ylcarbamoyl)methyl]-3-(2-aminoethylcarbamoyl)-2-hydroxypropanoate + AMP + diphosphate => 2-[(2-aminoethylcarbamoyl)methyl]-2-hydroxybutanedioate + (S)-2,3-diaminopropanoate + ATP
2-[(l-alanin-3-ylcarbamoyl)methyl]-3-(2-aminoethylcarbamoyl)-2-hydroxypropanoate + amp + diphosphate => 2-[(2-aminoethylcarbamoyl)methyl]-2-hydroxybutanedioate + (s)-2,3-diaminopropanoate + atp