Aspartate is non-essential in mammals, being produced from oxaloacetate by transamination.
From the en.wikipedia.org
In other organisms, alanine is produced during hypoxia by transamination to pyruvate from another amino acid.
From the nature.com
This is due to an increased demand of energy and carbon for the amidation and transamination of glutamate and pyruvate to discharge nitrogen in the form of glutamine and alanine, respectively.
From the nature.com
More examples
The process of transposing an amino group within a chemical compound
There are two chemical reactions known as transamination (or aminotransfer). The first is the reaction between an amino acid and an alpha-keto acid. ...
Transaminase enzymes needed to break down amino acids are dependent on the presence of pyridoxal phosphate. The proper activity of these enzymes are crucial for the process of moving amine groups from one amino acid to another.
Enzymatic transfer of an amino group from an a-amino acid to an a-keto acid.