Katada, S., Hirokawa, T., Oka Y., Suwa, M. & Touhara, K. (2005) Structural Basis for a Broad But Selective Ligand Spectrum of a Mouse Olfactory Receptor: Mapping the Odorant-Binding Site. J. Neurosci. 25, 1806-1815.

Demura, M., Yoshida, T., Hirokawa, T., Kumaki, Y., Aizawa, T., Nitta, K., Bitter, I., & Toth, K. (2005) Interaction of dopamine and acetylcholine with an amphiphilic resorcinarene receptor in aqueous micelle system. Bioorganic & Medicinal Chemistry Letters 15(5),, 1367-1370.

Igarashi, S., Hirokawa, T. & Sode, K. (2004) Engineering PQQ glucose dehydrogenase with improved substrate specificity Site-directed mutagenesis studies on the active center of PQQ glucose dehydrogenase. Biomolecular Engineering 21, 81-89.

Nakamura, T., Motoyama, T., Hirokawa, T., Hirono, S. & Yamaguchi, I. (2003) Computer-aided modeling of pentachlorophenol 4-monooxygenase and site-directed mutagenesis of its active site. Chem. Pharm. Bull. (Tokyo) 51(11), 1293-1298.

Imashimizu, M., Fujiwara, S., Tanigawa, R., Tanaka, K., Hirokawa, T., Nakajima, Y., Higo, J. & Tsuzuki, M. (2003) Thymine at -5 is crucial for cpc promoter activity of Synechocystis sp. strain PCC 6714. J. Bacteriol. 185(21), 6477-6480.

Nishikawa, K., Li, H., Kawamura, R., Osaka, H., Wang, Y. L., Hara, Y., Hirokawa, T., Manago, Y., Amano, T., Noda, M., Aoki, S. & Wada, K. (2003) Alterations of structure and hydrolase activity of parkinsonism-associated human ubiquitin carboxyl-terminal hydrolase L1 variants. Biochem. Biophys. Res. Commun. 304(1), 176-183.

Mitaku, S., Hirokawa, T. & Tsuji, T. (2002) Amphiphilicity index of polar amino acids as an aid in the characterization of amino acid preference at membrane-water interfaces. Bioinformatics 18(4), 608-616.

Hirokawa, T., Uechi, J., Sasamoto, H., Suwa, M. & Mitaku, S. (2000) A triangle lattice model that predicts transmembrane helix configuration using a polar jigsaw puzzle. Protein Eng. 13(11), 771-778.

Mitaku, S., Ono, M., Hirokawa, T., Boon-Chieng, S. & Sonoyama, M. (1999) Proportion of membrane proteins in proteomes of 15 single-cell organisms analyzed by the SOSUI prediction system. Biophys. Chem. 82(2-3), 165-171.

Mitaku, S. & Hirokawa, T. (1999) Physicochemical factors for discriminating between soluble and membrane proteins: hydrophobicity of helical segments and protein length. Protein Eng. 12(11), 953-957.

Hirokawa, T., Boon-Chieng, S. & Mitaku, S. (1998) SOSUI: classification and secondary structure prediction system for membrane proteins. Bioinformatics 14(4), 378-379.

Suwa, M., Hirokawa, T. & Mitaku, S. (1995) A continuum theory for the prediction of lateral and rotational positioning of alpha-helices in membrane proteins: bacteriorhodopsin. Proteins 22(4), 363-377.