The α-tubulin acetyltransferase ATAT1: structure, cellular functions, and its emerging role in human diseases
Open accessAbstract
The acetylation of α-tubulin on lysine 40 is a well-studied post-translational modification which has been associated with the presence of long-lived stable microtubules that are more resistant to mechanical breakdown. The discovery of α-tubulin acetyltransferase 1 (ATAT1), the enzyme responsible for lysine 40 acetylation on α-tubulin in a wide range of species, including protists, nematodes, and mammals, dates to about a decade ago. However, the role of ATAT1 in different cellular activities and molecular pathways has been only recently disclosed. This review comprehensively summarizes the most recent knowledge on ATAT1 structure and substrate binding and analyses the involvement of ATAT1 in a variety of cellular processes such as cell motility, mitosis, cytoskeletal organization, and intracellular trafficking. Finally, the review highlights ATAT1 emerging roles in human diseases and discusses ATAT1 potential enzymatic and non-enzymatic roles and the current efforts in developing ATAT1 inhibitors.
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The mechanism by which GEF-H1 avoids acetylated microtubules is likely indirect.
“The underlying mechanism is likely to be indirect, because GEF-H1 binds to the outer microtubule surface 22 , whereas acetylation occurs on the luminal microtubule surface 34-36 .”
From Taxane-induced conformational changes in the microtubule lattice activate GEF-H1-dependent RhoA signalling (2026) · cites this paper as [36]
Acetylation occurs on the luminal microtubule surface.
“The underlying mechanism is likely to be indirect, because GEF-H1 binds to the outer microtubule surface 22 , whereas acetylation occurs on the luminal microtubule surface 34-36 .”
From Taxane-induced conformational changes in the microtubule lattice activate GEF-H1-dependent RhoA signalling (2026) · cites this paper as [36]
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Microtubules containing acetylated alpha-tubulin in mammalian cells in culture.
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Tubulin Posttranslational Modifications and Emerging Links to Human Disease
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Cited by
Sorted by citations
Meiring, J. C. M., Mahapatra, V., Liu, R., Gravett, M. S. C., Morren, D., Saunders, H. A. J., Choi, S. R., Pelster José, A., Karhanova, A., Metallidou, I., et al. (2026) · Nature Cell Biology · doi:10.1038/s41556-026-02079-4
- Authors
- Iuzzolino, A., Pellegrini, F. R., Rotili, D., Degrassi, F., & Trisciuoglio, D.
- Affiliations
- Institute of Molecular Biology and Pathology (IT)
- Sapienza University of Rome (IT)
- Corresponding author
- Degrassi, Francesca
- Trisciuoglio, Daniela
- ORCID
- Venue
- Cellular and Molecular Life Sciences
- Published
- 2024-04-23
- Volume
- 81
- Issue
- 1
- Pages
- 193-193
- ISSN
- 1420-682X (ISSN-L)
- 1420-9071
- PMC
- PMC11039541
- OpenAlex
- W4395048974
- Cited by
- 33
- References
- 5
- Citations by year
- 2026: 17 · 2025: 10 · 2024: 6
- FWCI
- 1.74
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Cellular and Molecular Life Sciences (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- IRIS Research product catalog (Sapienza University of Rome) (submittedVersion, cc-by)
- Iris (Roma Tre University) (submittedVersion)
- Funders
- Consiglio Nazionale Delle Ricerche
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
- Physical Sciences › Chemistry › Organic Chemistry › Synthesis and biological activity
- Keywords
- alpha-tubulin acetylation, post-translational modification, microtubule stability, enzyme structure, substrate binding, cell motility, mitosis, cytoskeletal organization, intracellular trafficking, human disease
- MeSH terms
- Acetylation, Acetyltransferases, Animals, Cell Movement, Cytoskeleton, Humans, Microtubule Proteins, Microtubules, Mitosis, Neoplasms, Protein Processing, Post-Translational, Tubulin
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