• Sun, C.*, Ma, B.D.*, Li, G., Tian, W., Yang, L., Peng, H., Lin, Z., Deng, Z., Kong, X.D.# and Qu, X.# Engineering the substrate specificity of a P450 dimerase enables the collective biosynthesis of heterodimeric tryptophan-containing diketopiperazines. Angew Chem. Int. Ed., 2023, e202304994.