aspartic acid/aspartate metabolic pathway PW:0000439 SMP:00067 Those metabolic reactions involved in the synthesis, utilization and/or degradation of aspartic acid/aspartate. Aspartic acid is a non-essential amino acid with roles in glucose, protein and nucleotide metabolism. In the brain, it can act as a neurotransmitter. pathway excitatory neurotransmitter metabolic pathway hydrophilic amino acid metabolic pathway