He says that in contrast to methods for modifying peptide backbones that his lab team and others have reported, the method appears to be work independent of a protein’s amino acid sequence.

Penn State. "Building starch backbones for lab-grown meat using Lego pieces." ScienceDaily. ScienceDaily, 26 March 2019. <www.sciencedaily.com / releases / 2019 / 03 / 190326160525.htm>.