Journal
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE
Volume 1739, Issue 2-3, Pages 216-223Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbadis.2004.08.014
Keywords
neurofibrillary tangle; tau; Alzheimer's disease
Funding
- NIA NIH HHS [AG020506, AG09466, AG14453, AG021661] Funding Source: Medline
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Neurofibrillary tangles (NFT) are comprised of the microtubule-associated protein tau, in the form of filamentous aggregates. In addition to the well-known changes in phosphorylation state, tau undergoes multiple truncations and shifts in conformation as it transforms from an unfolded monomer to the structured polymer characteristic of NFT. Truncations at both the amino- and carboxy-termini directly influence the conformation into which the molecule folds, and hence the ability of tau to polymerize into fibrils. Certain of these truncations may be due to cleavage by caspases as part of the apoptotic cascade. In this review, we discuss evidence that strongly suggests that these truncations occur in an orderly pattern and directly influence the ability of tau to polymerize into filaments. (C) 2004 Published by Elsevier B.V.
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