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the claim

Actin molecules exchange between filamentous and non-filamentous forms in living cells.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 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 Actin molecules exchange between filamentous and non-filamentous forms in living cells?

Yes. Actin molecules continuously exchange between filamentous and unpolymerized monomeric states in living cells, driven by regulated polymerization and depolymerization dynamics.

Verdict: SUPPORTED · 5 sources for, 0 against · Last checked

The analysis

The claim is a fundamental, well-established biological fact about actin cytoskeleton dynamics. Multiple retrieved studies discuss the continuous polymerization, depolymerization, formation, and dissolution of actin filaments in living cells, as well as the pools of unpolymerized monomers. There is no evidence refuting this fact among the retrieved literature.

Evidence for · 5
Actin Filament Dynamics in Living Glial Cells Imaged by Atomic Force Microscopy
1992
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Henderson, E., Haydon, P. G., & Sakaguchi, D. S. (1992). Actin Filament Dynamics in Living Glial Cells Imaged by Atomic Force Microscopy. doi.org. https://doi.org/10.1126/science.1411511

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More for · 4
Actin Filament Morphology in Living and Nonliving Cultured Mesangial Cells: Formation and Dissolution
2008
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Singhal, P. & Hays, R. (2008). Actin Filament Morphology in Living and Nonliving Cultured Mesangial Cells: Formation and Dissolution. doi.org. https://doi.org/10.1159/000185112

Actin depolymerization promotes axon regeneration by restoring axonal mitochondrial transport in mouse models of optic neuropathy.
2026
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L, L., X, F., F, F., J, F., J, L., H, Z., M, D. Ž., Y, Y., Z, L., H, H., D, L., F, H., H, L., Y, Z., F, B., M, M., IJ, Y., L, L., X, Y., M, L., Y, L., Q, X., A, K., X, D., JL, G., X, C., M, B., Z, L., Y, H., R, Z., & Y, H. (2026). Actin depolymerization promotes axon regeneration by restoring axonal mitochondrial transport in mouse models of optic neuropathy.. doi.org. https://doi.org/10.1126/scitranslmed.adw0908

Leiomodin 2 is a processive pointed-end elongator of actin filaments.
2026
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S, B., TM, L., S, C., CC, G., & S, S. (2026). Leiomodin 2 is a processive pointed-end elongator of actin filaments.. doi.org. https://doi.org/10.1038/s41467-026-74809-z

DNase I as a probe for unpolymerized actin: revisiting a classic tool for nuclear actin research.
2026
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A, G., L, B., DM, K., & A, Z. (2026). DNase I as a probe for unpolymerized actin: revisiting a classic tool for nuclear actin research.. doi.org. https://doi.org/10.1007/s00424-026-03158-z

What does the evidence say?

The claim is a fundamental, well-established biological fact about actin cytoskeleton dynamics. Multiple retrieved studies discuss the continuous polymerization, depolymerization, formation, and dissolution of actin filaments in living cells, as well as the pools of unpolymerized monomers. There is no evidence refuting this fact among the retrieved literature.

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