Asparagine and glutamine share some characteristics, i.e., they are nonessential polar and uncharged amino acids. The most important feature that they share is in the asparagine synthesis. Asparagine comes from the aspartate as substrate of the asparagine synthetase enzyme that incorporates an glutamine molecule to provide an amino group to the substrate, leaving glutamate from the reaction, and in presence of ATP as energetic group.

C4H8N2O3

AAU or AAC

This is a polar amino acid.

An asparaginyl is a univalent radical derived from asparagine.