Skip to main content

Table 1 Presence (+) and absence (−) of key predicted genes in the 9 GBs

From: Metagenomic analysis of basal ice from an Alaskan glacier

Category Subcategory Predicted gene Bin 04 Bin 11 Bin 17 Bin 24 Bin 31 Bin 33 Bin 0236 Bin 0512 Bin 2732
Nitrogen metabolism Dissimilatory nitrate reduction Nitrate reductase (narGHI) +
   Periplasmic nitrate reductase +
   Nitrite reductase (nirD) +
   Nitrite reductase (nrfA) +
  Denitrification Periplasmic nitrate reductase +
  Nitrification Nitrite oxidoreductase subunit (nxrA) +
  Nitrogen fixation Nitrogenase iron proteins (nifDKH) +
Sulfur metabolism Dissimilatory sulfate reduction Adenylylsulfate reductase subunit A (aprA) + +
   Adenylylsulfate reductase subunit B (aprB) +
  SOX system Sulfur oxidizing protein (soxB) +
Carbon metabolism CO2 Fixation Ribulose bisphosphate carboxylase (small chain) + +
   Ribulose bisphosphate carboxylase (large chain) + +
   RuBisCO activation protein (cbbO) +
   RuBisCO activation protein (cbbQ) +
   RuBisCO transcriptional regulator (cbbR) + +
Respiration Complex I NADH Ubiquinone oxidoreductase + + + +
  Complex II Succinate dehydrogenase + + + + +