MAPT region Mutation Clinical features Origin Age at onset Age at death References
Exon 1 R5L Falls, dysarthria, micrographia U.S.A 62 67 [30]
Exon 10 N279K *1 bradyphrenia, parkinsonism, apathy France 40 47 [28]
*2 apathy, attentive deficits 41 -
*3 parkinsonism with tremor, personality change, ocular apraxia, postural instability Japan 42 54 [91]
*4 parkinsonism, gaze palsy, postural instability 44 56
*5 Parkinsonism, gaze palsy, falls 46 -
*6 Cognitive impairment, gaze palsy, postural instability, pyramidal signs 41 51
*7 Parkinsonism, gaze palsy, falls 42 54
*8 Parkinsonism, gaze palsy, falls, pyramidal signs 43 51
** 4 families with a common founder, 39 affected members; parkinsonism or dementia associated with behavioural changes U.S.A (Caucasian) 32-58 6-9 y of duration [36]
** 1 family, 3 affected members; parkinsonism or dementia associated with behavioural changes France 38-45 6-8 y of duration
L284R *1 multiple falls with progressive dementia UK  (South England) early-40s 48 [31]
*2 personality change, falls, progressive aphasia mid-40s 52
*3 personality change, apathy, falls, dysarthria 43 47
S285R *1 Sporadic, supranuclear gaze palsy, bradykinesia, falls Japan 46 49 [91]
∆N296 *1 gaze palsy, cognitive deficits, emotional lability Spain 38 - [92]
*2 personality change, parkinsonism 39 -
*3 Personality change, cognitive impairment, gaze palsy, falls Japan 44 - [91]
*4 Dysarthria, anterocollis, falls, parkinsonism Italy 39 - [33]
P301L *1 Parkinsonism not further characterized Nederland - - [22]
G303V *1 Parkinsonism, falls, gaze palsy, dysarthria Spain 37 45 [32]
*2 Not well characterized parkinsonism 41 44
*3 Not well characterized parkinsonism late-30s -
*4 Parkinsonism with tremor and rigidity France 41 45 [27]
*5 Parkinsonism, gaze palsy, eye apraxia 37 40
*6 Parkinsonism with dystonia, eye apraxia 51 57
*7 Parkinsonism with dystonia, gaze palsy 39 44
*8 Parkinsonism, gaze palsy, dysphagia 42 46
*9 Parkinsonism with dystonia, gaze palsy 32 36
S305S *1 Apathy/cognitive deficits Australia (Caucasian) 55 - [35]
*2 Dementia, apathy, aphasia 48 51
*3 Clumsiness, dysarthria, rigidity 49 56
Intron 10 10+3 *1 “atypical PSP-presentation” not further characterized U.S.A. 47 48 [34]
*2 “atypical PSP-presentation” not further characterized 52 58
10+16 *1 Sporadic parkinsonism with fatigue, apathy, micrographia, falls UK 40 45 [29]
Table 1: MAPT mutation associated with clinical diagnosis of PSP. *: studies with single patients descriptions; **studies with families descriptions
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