| 摘要 |
Described are novel N- and C-terminally double truncated tau molecules, herein after designated type IIB tau molecules, characterized by the following features:
- the molecules have at least the first 68 N-terminal amino acids and at least the last 40 C-terminal amino acids of the 4 repeat containing tau43 or the first 68 N-terminal amino acids and at least the last 20 C-terminal amino acids of the 3 repeat containing tau44 truncated,
- the molecules are detectable in Alzheimer's diseased brain tissue, whereas the molecules are not detectable in normal healthy brain tissue,
- the molecules have a pathological microtubule assembly promoting activity different from wild type tau in an in vitro microtubule assembly assay. |
