Fig. 2From: Novel insights into the Thaumarchaeota in the deepest oceans: their metabolism and potential adaptation mechanismsPredicted metabolism of hadal zone archaea based on the MTA1 MAG. Genes in these pathways are listed in Additional file 1: Table S2. The urea transporter is absent in the MTA1 MAG but present in other alpha AOA; thus, it is shown as a dotted lineBack to article page