Presented herein are methods directed to engineering monoclonal antibodies and antibody variants to improve stability and their production in culture. Specifically, the monoclonal antibodies can be engineered at heavy chain residue 56 (AHo numbering) to a glycine, alanine, or serine, and/or engineered at position 80 (AHo) to be a hydrophobic residue such as alanine, isoleucine, phenylalanine, leucine, methionine, or valine.