The channel in transporters is formed by residues that are rare in transmembrane helices. - Olga V. Kalinina; Vsevolod J. Makeev; Roman A. Sutormin; Mikhail S. Gelfand; Aleksandra B. Rakhmaninova (Silico Biol., 2003)

Recognition of Transmembrane Segments in Proteins: Review and Consistency-based Benchmarking of Internet Servers. - Nataliya S. Sadovskaya; Roman A. Sutormin; Mikhail S. Gelfand (J. Bioinform. Comput. Biol., 2006)