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Differences Between Human and Murine Tau at the N-terminal End.


ABSTRACT: Human tauopathies, such as Alzheimer's disease (AD), have been widely studied in transgenic mice overexpressing human tau in the brain. The longest brain isoforms of Tau in mice and humans show 89% amino acid identity; however, the expression of the isoforms of this protein in the adult brain of the two species differs. Tau 3R isoforms are not present in adult mice. In contrast, the adult human brain contains Tau 3R and also Tau 4R isoforms. In addition, the N-terminal sequence of Tau protein in mice and humans differs, a Tau peptide (residues 17-28) being present in the latter but absent in the former. Here we review the main published data on this N-terminal sequence that suggests that human and mouse Tau proteins interact with different endogenous proteins and also show distinct secretion patterns.

SUBMITTER: Hernandez F 

PROVIDER: S-EPMC6999090 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Differences Between Human and Murine Tau at the N-terminal End.

Hernández Félix F   Merchán-Rubira Jesús J   Vallés-Saiz Laura L   Rodríguez-Matellán Alberto A   Avila Jesús J  

Frontiers in aging neuroscience 20200128


Human tauopathies, such as Alzheimer's disease (AD), have been widely studied in transgenic mice overexpressing human tau in the brain. The longest brain isoforms of Tau in mice and humans show 89% amino acid identity; however, the expression of the isoforms of this protein in the adult brain of the two species differs. Tau 3R isoforms are not present in adult mice. In contrast, the adult human brain contains Tau 3R and also Tau 4R isoforms. In addition, the N-terminal sequence of Tau protein in  ...[more]

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