Used in peptide synthesis as a protected amino acid building block, particularly in solid-phase peptide synthesis (SPPS). The Fmoc group provides temporary N-terminal protection that is easily removed under mild basic conditions, allowing stepwise assembly of complex peptides. The 3VVD sequence is designed to mimic specific protein domains, making it valuable in research related to protein-protein interactions, enzyme substrates, or epitope mapping. Its structure supports the synthesis of peptides with defined secondary structures, useful in drug discovery and biochemical assays.