The rest of the article is organized as follows. In the next section we describe the energy function based on the HSE measure. Then the protein abstraction and lattice model are discussed. In section Heuristics, we present the two conformational search heuristics, MCS and TS. In section Lattice experiments, MCS and TS are evaluated in lattices of different complexity. Finally, we evaluate the information content (that is, to what extent they can be used to reconstruct a protein structure) of the HSE and CN measures using TS and a high complexity lattice.