1. b.149.1 Beta-galactosidase LacA, domain 3 Beta-galactosidase LacA, domain 3 sandwich; 8 strands in 2 sheets 1tg7 d1tg7a1 A:599-604,606-615,616-625,626-634,640-645 1xc6 d1xc6a1 A:599-604,606-615,616-625,626-634,640-645 5. b.133.1 Dextranase, N-terminal domain Dextranase, N-terminal domain sandwich; 9 strands in 2 sheets; greek-key 1ogo d1ogox1 X:39-47,57-61,97-107,108-117,191-200 1ogm d1ogmx1 X:39-47,57-61,97-107,108-117,191-200