Ac-IHIHIQI-NH2 is a fibril-forming heptapeptide with high catalytic activity to laccase mimics. Ac-IHIHIQI-NH2 exhibits selectivity for drophobic p-nitrophenyl (ONp) ester substrates in the process of self-assembly[1][2].
Ac-IHIHIQI-NH2 在 Zn2+ 存在下催化 p-nitrophenyl acetate (pNPA) 水解,在 pH 8 kcat/KM 值为 62 M-1s-1[2]。
[1]. Liu Q, et al. Supramolecular enzyme-mimicking catalysts self-assembled from peptides. iScience. 2022 Dec 20;26(1):105831.
[2]. Heier JL, et al. Substrate specificity of an actively assembling amyloid catalyst. Biopolymers. 2017 Jan;108(1).
















