[Furanosidase superfamily: search of homologues].
The furanosidase superfamily contains GH32, GH43, GH62, GH68, GH117, DUF377, and DUF1861 families of glycoside hydrolases and their homologues. Catalytic domains of these families have five-bladed beta-propeller tertiary structure. Iterative screening of the protein database allowed to support their relationship as well as evolutionary connections with domains from GH33 and GH93 families of glycoside hydrolases. The latter two have structure of the six-bladed beta-propeller. Among revealed homologues we found 441 unclassified proteins. These proteins are combined into 39 groups based on homology: FURAN1-FURAN39. FURAN8 and FURAN36 can be considered as separate subfamilies within GH43 and GH32 families of glycoside hydrolases, respectively. The remaining 37 groups are new families of hypothetical glycoside hydrolases.
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Naumov
D019143:Evolution, Molecular; D017433:Protein Structure, Secondary; D020539:Sequence Analysis, Protein; D017386:Sequence Homology, Amino Acid; D043324:beta-Fructofuranosidase / Q000737:chemistry* / Q000145:classification / Q000235:genetics*
D043324:beta-Fructofuranosidase