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the claim

The use of a tiny subset of possible proteins in life is a result of evolutionary contingency and chemical constraints.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that the use of a tiny subset of possible proteins in life is a result of evolutionary contingency and chemical constraints?

Yes. Retrieved evolutionary and biochemical literature confirms that the structural and sequence evolution of proteins is heavily restricted by historical contingency, epistasis, and underlying physico-chemical constraints.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

The analysis

The claim posits that protein usage in life is restricted by evolutionary contingency and chemical constraints. Papers [0], [1], and [10] provide direct evidence that physico-chemical properties, thermodynamic constraints, epistasis, and path-dependent historical contingency heavily dictate protein sequence spaces and evolutionary outcomes. No papers refute this premise.

Evidence for · 3
Bridging the physical scales in evolutionary biology: From protein sequence space to fitness of organisms and populations
2016
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Bershtein, S., Serohijos, A. W. R., & Shakhnovich, E. (2016). Bridging the physical scales in evolutionary biology: From protein sequence space to fitness of organisms and populations. doi.org. https://doi.org/10.1016/j.sbi.2016.10.013

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More for · 2
Fundamental constraints to the logic of living systems.
2024
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R, S., CP, K., B, C., M, D. D., A, K., M, L., E, L., S, S., E, S., & D, W. (2024). Fundamental constraints to the logic of living systems.. doi.org. https://doi.org/10.1098/rsfs.2024.0010

Epistasis and physico-chemical constraints contribute to spatial clustering of amino acid substitutions in protein evolution
2020
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Taverner, A. M., Blaine, L. J., & Andolfatto, P. (2020). Epistasis and physico-chemical constraints contribute to spatial clustering of amino acid substitutions in protein evolution. doi.org. https://doi.org/10.1101/2020.08.05.237594

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8704 Aug 2026
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