- X-ray structure of yeast Hal2p, a major target of lithium and sodium toxicity, and identification of framework interactions determining cation sensitivity. Albert, A., Yenush, L., Gil-Mascarell, M.R., Rodriguez, P.L., Patel, S., Martínez-Ripoll, M., Blundell, T.L., Serrano, R. J. Mol. Biol. (2000)