CASTRO, C., GRATSON, A. A., EVANS, J. C., JIRÁČEK, Jiří, COLLINSOVÁ, Michaela, LUDWIG, M. L., GARROW, T. A. Dissecting the Catalytic Mechanism of Betaine - Homocysteine S-Methyltransferase by Use of Intrinsic Tryptophan Fluorescence and Site-Directed Mutagenesis. Biochemistry. 2004, 43(18), 5341-5351. ISSN 0006-2960. E-ISSN 1520-4995.