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Chemistry

Soil bacteria enzyme generates electricity from hydrogen in the air

An enzyme called Huc that the soil bacterium Mycobacterium smegmatis uses to produce energy from hydrogen has been analysed and now we know how it works

By Alex Wilkins

8 March 2023

A reconstruction of the Huc enzyme

A reconstruction of the Huc enzyme

Chris Greening et al

An enzyme that can generate energy from hydrogen in the air could power future fuel cells or small generators.

Soil bacteria that have evolved to consume hydrogen to make their energy take in about 60 million tonnes of the gas globally each year, but how exactly they do it has been a bit of a mystery.

at Monash University in Melbourne and his colleagues have previously called Huc in the soil bacterium Mycobacterium smegmatis plays a key role in this…

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