Fig. 1: Model laccase, MetalSite-Analyzer output, and design strategy.
From: A bioinformatics approach to design minimal biomimetic metal-binding peptides
A PDB structure of the small laccase used as a model for our design (PDB ID: 3tbc) with focus on its minimal functional site (MFS) and binding fragments extracted by MetalSite-Analyzer (MeSA). B Output of MeSA based on the trinuclear copper site of the model small laccase. 1 and 2 represent fragments belonging to chain A (top) and to chain B (bottom). C The model MFS features a C2 symmetry axis running across the Cu atoms; the binding histidines of the shortest fragments (1 from chain A and 1 from chain B) show a high degree of overlap according to this symmetry. Thus, these fragments are selected for the following sequence variability analysis. For clarity, the binding histidines belonging to other fragments are not shown. The selection of the final sequence is represented graphically on the right. Conserved residues, including coordinating His, are highlighted using black arrows (see “Methods” for details).
