(2-aminoethyl)phosphonate + pyruvate <=> phosphonoacetaldehyde + L-alanine
(2-aminoethyl)phosphonate + pyruvate <=> phosphonoacetaldehyde + l-alanine
(2-aminoethyl)phosphonate + pyruvate <=> phosphonoacetaldehyde + L-alanine
(2-aminoethyl)phosphonate + pyruvate <=> phosphonoacetaldehyde + l-alanine