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. 2018 Apr 24;9:776. doi: 10.3389/fmicb.2018.00776

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Copyright © 2018 Arzamasov, van Sinderen and Rodionov.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Models of arabinose and AOS utilization in bifidobacteria. (A) Arabinose utilization via arabinose transporters. (B) Arabinose utilization in B. gallicum. (C) α-AOS utilization. (D) β-AOS utilization. Arabinosidases are shown by light brown ovals. Predicted sugar uptake ABC transporters and permeases are shown as light blue complex and rectangular shapes, respectively. The arabinose monosaccharide catabolic enzymes are shown in green boxes. ‘Hypo GH’ denotes hypothetical glycosyl hydrolases that are presumed to be involved in AOS utilization. Pentagon represents a hydroxyproline residue of a glycosylated protein.