Formylmethanofuran

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Formylmethanofuran is a key intermediate in the methanogenesis pathway, which is the process by which methane is produced in anaerobic environments. This compound is produced by the enzyme formylmethanofuran dehydrogenase from methanofuran and carbon dioxide.

Structure and Properties[edit | edit source]

Formylmethanofuran is a organic compound that contains a formyl group attached to a methanofuran molecule. The formyl group is a functional group with the structure -CHO, consisting of a carbon atom, a hydrogen atom, and an oxygen atom. Methanofuran is a furan derivative that is involved in the biological production of methane.

Role in Methanogenesis[edit | edit source]

In the methanogenesis pathway, formylmethanofuran is produced from methanofuran and carbon dioxide by the enzyme formylmethanofuran dehydrogenase. This is the first step in the reduction of carbon dioxide to methane. The formylmethanofuran is then converted to methenyltetrahydromethanopterin by the enzyme formylmethanofuran--tetrahydromethanopterin formyltransferase.

Biological Importance[edit | edit source]

Formylmethanofuran is a crucial intermediate in the production of methane by methanogenic archaea. These organisms play a significant role in the global carbon cycle, as they are responsible for the production of a large proportion of the methane in the Earth's atmosphere. Methane is a potent greenhouse gas, and understanding the biochemistry of its production is important for understanding and mitigating climate change.


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Contributors: Prab R. Tumpati, MD