id author title date pages extension mime words sentences flesch summary cache txt work_bwyl5aldazcytler7culcro2sm Gonzalo S. Nido Learning structural bioinformatics and evolution with a snake puzzle 2016 38 .pdf application/pdf 16562 1566 61 Keywords Structural bioinformatics, Education, Protein folding, Statistical mechanics, Contact matrix, Protein structure alignment, Designability, Evolution, Contact order, Protein classification puzzle and the contact matrix representation of protein structures, and we propose a simple model structures, on which we propose computational exercises focused on evolutionary Contact matrices are also used as a simplified representation of real protein structures. We can define the sequence structure relationship within the contact energy model of contact interaction energies depend on the protein sequence as Uij =U(Ai,Aj), where Ai self avoiding walks on the cubic lattice or the contact matrices of real protein structures. Figure 6 Designability of selected structures for an increasing number of random sequences. energy where sequences with larger fitness are visited more often, in analogy with structures 2. Fitness evaluation We compute the folding free energy of the mutated sequence We simulate protein sequence evolution with structural constraints using a Monte Carlo ./cache/work_bwyl5aldazcytler7culcro2sm.pdf ./txt/work_bwyl5aldazcytler7culcro2sm.txt