Beta-galactosidase belongs to Glycoside hydrolase family 35 [1-5]. This entry represents the galactose-binding domain.

1: Crystal structures of beta-galactosidase from Penicillium sp. and its complex with galactose. Rojas AL, Nagem RA, Neustroev KN, Arand M, Adamska M, Eneyskaya EV, Kulminskaya AA, Garratt RC, Golubev AM, Polikarpov I; J Mol Biol. 2004;343:1281-1292. PMID:15491613

2: Crystal structures of Trichoderma reesei beta-galactosidase reveal conformational changes in the active site. Maksimainen M, Hakulinen N, Kallio JM, Timoharju T, Turunen O, Rouvinen J; J Struct Biol. 2011;174:156-163. PMID:21130883

3: Crystal structure of human beta-galactosidase: structural basis of Gm1 gangliosidosis and morquio B diseases. Ohto U, Usui K, Ochi T, Yuki K, Satow Y, Shimizu T; J Biol Chem. 2012;287:1801-1812. PMID:22128166

4: Unravelling the multiple functions of the architecturally intricate Streptococcus pneumoniae beta-galactosidase, BgaA. Singh AK, Pluvinage B, Higgins MA, Dalia AB, Woodiga SA, Flynn M, Lloyd AR, Weiser JN, Stubbs KA, Boraston AB, King SJ; PLoS Pathog. 2014;10:e1004364. PMID:25210925

5: Structural insights into the substrate specificity of Streptococcus pneumoniae beta(1,3)-galactosidase BgaC. Cheng W, Wang L, Jiang YL, Bai XH, Chu J, Li Q, Yu G, Liang QL, Zhou CZ, Chen Y; J Biol Chem. 2012;287:22910-22918. PMID:22593580