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Kalyuzhnaya, M.G. et al.

Fishing for biodiversity: novel methanopterin-linked C transfer genes deduced from the Sargasso Sea metagenome.

The recently generated database of microbial genes from an oligotrophic environment populated by a calculated 1800 major phylotypes (the Sargasso Sea metagenome-SSM) presents a great source for expanding local databases of genes indicative of a specific function. In this article we analyse the SSM for the presence of methanopterin-linked C1 transfer genes that are signature for methylotrophy. We conclude that more than 10 phylotypes possessing genes of interest are present in this environment. The sequences representative of these major phylotypes do not appear to belong to any known microbial group capable of methanopterin-linked C1 transfer. Instead, these sequences separate from all known sequences on phylogenetic trees, pointing toward their affiliation with novel microbial phyla. These data imply a broader distribution of methanopterin-linked functions in the microbial world than has been previously known.[1]

References

Fishing for biodiversity: novel methanopterin-linked C transfer genes deduced from the Sargasso Sea metagenome. Kalyuzhnaya, M.G., Nercessian, O., Lapidus, A., Chistoserdova, L. Environ. Microbiol. (2005) [Pubmed]

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