Detection of a Cdc2-related kinase associated with Alzheimer paired helical filaments

W. K. Liu, R. T. Williams, F. L. Hall, Dennis W Dickson, S. H. Yen

Research output: Contribution to journalArticle

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Abstract

By immunocytochemical staining and Western blotting, we detected a Cdc2- related kinase in human brains. The kinase is recognized by antibodies against the carboxyl and the amino termini of p34(Cdc2) but is not recognized by antibodies against the PSTAIRE motif. It is slightly smaller than p34(Cdc2) in molecular mass (approximately 33 kd). This 33-kd Cdc2-related kinase is present in intracellular neurofibrillary tangles in neurons of elderly humans and in Alzheimer's disease, and it is associated with paired helical filaments (PHF) from Alzheimer's disease brains. Unlike the antibodies to the carboxyl and amino termini of p34(Cdc2), antibodies to an abundant brain Cdc2-related kinase PSSLARE/Cdk5 did not immunolabel Alzheimer's disease neurofibrillary lesions. PHF preparations were demonstrated to contain kinases capable of phosphorylating histone H1, PHF- Tau, and a synthetic peptide (VAVVRTPPK-SPSSAK). By virtue of its physical association with PHF, the 33-kd Cdc2-related kinase may play a role in transforming normal Tau proteins to PHF-Tau characteristic of Alzheimer's disease.

Original languageEnglish (US)
Pages (from-to)228-238
Number of pages11
JournalAmerican Journal of Pathology
Volume146
Issue number1
StatePublished - 1995
Externally publishedYes

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Phosphotransferases
Alzheimer Disease
Antibodies
Brain
tau Proteins
Neurofibrillary Tangles
Histones
Western Blotting
Staining and Labeling
Neurons
Peptides

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

Detection of a Cdc2-related kinase associated with Alzheimer paired helical filaments. / Liu, W. K.; Williams, R. T.; Hall, F. L.; Dickson, Dennis W; Yen, S. H.

In: American Journal of Pathology, Vol. 146, No. 1, 1995, p. 228-238.

Research output: Contribution to journalArticle

Liu, W. K. ; Williams, R. T. ; Hall, F. L. ; Dickson, Dennis W ; Yen, S. H. / Detection of a Cdc2-related kinase associated with Alzheimer paired helical filaments. In: American Journal of Pathology. 1995 ; Vol. 146, No. 1. pp. 228-238.
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