A detailed metabolic description of the proposed Ca. H. yellowstonense, formerly identified as YNP_45, is given in the original work by Baker et al. (2016) Nat. Microbiol. 1, 16002. doi: 10.1038/NMICROBIOL.2016.2. The organisms was found in hot spring in Yellowstone National Park, USA.
The reduced genome size and previously inferred gene content (821) suggests that the genome has undergone streamlining. The inferred metabolic capabilities indicates oxidation of carbon monoxide, which may be coupled to H2O or nitrite reduction to ammonia. Also inferred to contain a variety of central carbon metabolic (C1 pathway) genes found in methanogens, which may be used for carbon fixation. The organism is inferred to be thermophilic.