This computational study is a summary of structural properties of the fi-glucosidase subfamily B. Computations were carried out using GCG package programs. All sequences used in this analysis were taken from the protein data bank. The multialignment and the phylogenetic tree of the P-glucosidase subfamily B are shown. The conserved patterns: DGP, GRNFE, DPYL, KHF, SDW, GLD, VLLKN in the N-terminal region and FGYGLSY in the C-terminal part should be pointed out. Cterminal parts of the ButyrivibrioJibrisolvens and Ruminoccocus albus @-glucosidase sequences can be aligned to the N-terminal region of the other members of the subfamily. A crossed homology model in sub-family B P-glucosidases is described.

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