Cited by 564Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Phosphorylation that Detaches Tau Protein from Microtubules (Ser262, Ser214) Also Protects It against Aggregation into Alzheimer Paired Helical Filaments

Schneider, A., Biernat, J., von Bergen, M., Mandelkow, E., Mandelkow, E.-M.·1999·Biochemistry

Abstract

One of the hallmarks of Alzheimer's disease is the abnormal state of the microtubule-associated protein tau in neurons. It is both highly phosphorylated and aggregated into paired helical filaments, and it is commonly assumed that the hyperphosphorylation of tau causes its detachment from microtubules and promotes its assembly into PHFs. We have studied the relationship between the phosphorylation of tau by several kinases (MARK, PKA, MAPK, GSK3) and its assembly into PHFs. The proline-directed kinases MAPK and GSK3 are known to phosphorylate most Ser-Pro or Thr-Pro motifs in the regions flanking the repeat domain of tau: they induce the reaction with several antibodies diagnostic of Alzheimer PHFs, but this type of phosphorylation has only a weak effect on tau-microtubule interactions and on PHF assembly. By contrast, MARK and PKA phosphorylate several sites within the repeats (notably the KXGS motifs including Ser262, Ser324, and Ser356, plus Ser320); in addition PKA phosphorylates some sites in the flanking domains, notably Ser214. This type of phosphorylation strongly reduces tau's affinity for microtubules, and at the same time inhibits tau's assembly into PHFs. Thus, contrary to expectations, the phosphorylation that detaches tau from microtubules does not prime it for PHF assembly, but rather inhibits it. Likewise, although the phosphorylation sites on Ser-Pro or Thr-Pro motifs are the most prominent ones on Alzheimer PHFs (by antibody labeling), they are only weakly i…

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Crossref · 10.1021/bi981874p

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Authors
Schneider, A., Biernat, J., von Bergen, M., Mandelkow, E., & Mandelkow, E.-M.
Affiliations
  • Max Planck Unit for Structural Molecular Biology (DE)
  • Max-Planck-Unit for Structural Molecular Biology, Notkestrasse 85, D-22603 Hamburg, Germany
Venue
Biochemistry
Published
1999-03-01
Volume
38
Issue
12
Pages
3549-3558
ISSN
  • 0006-2960 (ISSN-L)
  • 1520-4995
OpenAlex
W2136750984
Cited by
564
References
3
Citations by year
2026: 14 · 2025: 23 · 2024: 26 · 2023: 29 · 2022: 16 · 2021: 22 · 2020: 20 · 2019: 28 · 2018: 21 · 2017: 18 · 2016: 14 · 2015: 17 · 2014: 24 · 2013: 22 · 2012: 21
FWCI
13.40
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
tau protein, phosphorylation, paired helical filaments, Alzheimer's disease, tau aggregation, MARK kinases, protein kinase A, glycogen synthase kinase-3, mitogen-activated protein kinase, proline-directed phosphorylation, hyperphosphorylation
MeSH terms
Alzheimer Disease, Humans, Microtubules, Phosphorylation, Repetitive Sequences, Nucleic Acid, Serine, Neurofibrillary Tangles, tau Proteins, Protein Serine-Threonine Kinases, Cyclic AMP-Dependent Protein Kinases

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