Asperphenamate

Asperphenamate is a small peptide-derived natural product originally isolated from Aspergillus species. Its biosynthesis involves a unique two-module nonribosomal peptide synthetase (NRPS) system composed of ApmA and ApmB, which cooperate to generate an amino acid ester structure. This represents the first characterized fungal two-module NRPS mechanism for amino acid ester formation. Biologically, asperphenamate exhibits antiproliferative activity in multiple cancer cell lines and has been shown to induce autophagic cell death rather than apoptosis. Structural modification studies have further demonstrated that synthetic derivatives can enhance anticancer potency, highlighting asperphenamate as a promising scaffold for anticancer drug development.