FIG 1.

Genetic map of the 41-kb fosmid containing arabinose and arabinan utilization genes from the G12 metagenomic clone. The letters P and Ω indicate, respectively, the putative promoter rho-independent transcription termination sites. Black segments represent ORFs encoding glycoside hydrolases, while gray segments correspond to ORFs encoding putative pentose metabolism enzymes. White boxes represent ORFs encoding proteins putatively involved in arabinan and arabinose recognition and utilization. No hypothetical function could be attributed to ORF16 and ORF17.