Cited by 245Microtubule and mitosis dynamicsCancer Treatment and PharmacologySynthesis and biological activity

Stathmin: A Tubulin-Sequestering Protein Which Forms a Ternary T2S Complex with Two Tubulin Molecules

Jourdain, Line, Curmi, Patrick, Sobel, André, Pantaloni, Dominique, Carlier, Marie-France·1997·Biochemistry

Abstract

Stathmin is an important regulatory protein thought to control the dynamics of microtubules through the cell cycle in a phosphorylation-dependent manner. Here we show that stathmin interacts with two molecules of dimeric alphabeta-tubulin to form a tight ternary T2S complex, sedimenting at 7.7 S. This complex appears in slow association-dissociation equilibrium in the analytical ultracentrifuge. The T2S complex is formed under a variety of ionic conditions, either from GTP- or GDP-tubulin or from the tubulin-colchicine complex. The S16/25/38/63E mutated stathmin in contrast is in rapid equilibrium with tubulin in the T2S complex. The T2S complex cannot polymerize in microtubules nor in ring oligomers. Stathmin acts as a pure tubulin-sequestering protein via formation of the T2S complex. It does not act directly on microtubule ends to promote catastrophe nor enhance microtubule dynamics.

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  • Non-phosphorylated stathmin 1 can associate with α/β tubulin subunits to induce microtubule destabilization.

    “While the effect of stathmin 1K9Ac on MAPK pathways has not yet been elucidated, non-phosphorylated stathmin 1 can associate with α/β tubulin subunits to induce microtubule destabilization [95].”

    From Acetylation: a new target for protein degradation in cancer (2025) · cites this paper as [95]

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  1. [16]16. Riederer, B. M., Pellier, V., Antonsson, B., Di Paolo, G., Stimpson, S. A., Lutjens, R., Catsicas, S., and Grenningloh, G. (1997) Proc. Natl. Acad. Sci. U.S.A. 94, 741-745.
  2. [17]17. Shelanski, M. L., Gaskin, F., and Cantor, C. R. (1973) Proc. Natl. Acad. Sci. U.S.A. 70, 765-768.
  3. [18]18. Weingarten, M. D., Lockwood, A. H., Hwo, S. Y., and Kirschner, M. W. (1975) Proc. Natl. Acad. Sci. U.S.A. 72, 1858-1862.

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Authors
Jourdain, L., Curmi, P., Sobel, A., Pantaloni, D., & Carlier, M.-F.
Affiliations
Centre National de la Recherche Scientifique (FR)
Corresponding author
Carlier, Marie-France
Venue
Biochemistry
Published
1997-09-01
Volume
36
Issue
36
Pages
10817-10821
ISSN
  • 0006-2960 (ISSN-L)
  • 1520-4995
OpenAlex
W2003878410
Cited by
245
References
12
Citations by year
2026: 3 · 2025: 5 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 4 · 2020: 5 · 2019: 6 · 2018: 4 · 2017: 7 · 2016: 5 · 2015: 7 · 2014: 13 · 2013: 12 · 2012: 9
FWCI
5.20
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Health Sciences › Medicine › Oncology › Cancer Treatment and Pharmacology
  • Physical Sciences › Chemistry › Organic Chemistry › Synthesis and biological activity
Keywords
stathmin, microtubule dynamics, tubulin phosphorylation, colchicine, microtubule assembly
MeSH terms
Animals, Microtubule Proteins, Microtubules, Phosphoproteins, Protein Binding, Tubulin, Ultracentrifugation, Dimerization, Stathmin

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