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the claim

GFAJ-1 uses adenosine triarsenate as its energy currency

the verdict

REFUTED

the evidence says no

confidence 13/100

The claim that GFAJ-1 uses adenosine triarsenate as its energy currency has been refuted by subsequent studies demonstrating that the bacterium is strictly phosphorus-dependent and uses specialized mechanisms to tolerate high levels of arsenic rather than incorporating it into its biochemical structure.

Evidence against · 3

Absence of Detectable Arsenate in DNA from Arsenate-Grown GFAJ-1 Cells

2012 · cited by 110

Studies demonstrating that GFAJ-1 is a phosphate-dependent organism rather than an arsenic-based life form.

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More against · 2

GFAJ-1 Is an Arsenate-Resistant, Phosphate-Dependent Organism

2012 · cited by 101

Follow-up research confirming GFAJ-1 requires phosphate for growth and does not substitute arsenate into its vital biomolecules.

Signature Arsenic Detoxification Pathways in <i>Halomonas</i> sp. Strain GFAJ-1.

2018 · cited by 20

Comprehensive genomic and phenotypic analysis showing that GFAJ-1 relies on specialized arsenic detoxification and efflux systems rather than incorporating arsenic into its core biochemical currency.

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first checked01 Aug 2026

judged → REFUTED · 1301 Aug 2026

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