Cruz-Martín, A. & Mercado, J.L. & Rojas, L.V. & Mcnamee, M.G. & Lasalde-Dominicci, J.A. (2001)
Tryptophan substitutions at lipid-exposed positions of the gamma M3 transmembrane domain increase the macroscopic ionic current response of the Torpedo californica nicotinic acetylcholine receptor. Journal of Membrane Biology, 183(1), 61–70
DOI: 10.1007/s00232-001-0051-z

Tamamizu, S. & Guzmán, G.R. & Santiago, J. & Rojas, L.V. & Mcnamee, M.G. & Lasalde-Dominicci, J.A. (2000)
Functional effects of periodic tryptophan substitutions in the alpha M4 transmembrane domain of the Torpedo californica nicotinic acetylcholine receptor. Biochemistry, 39(16), 4666–4673
DOI: 10.1021/bi992835w