Table 4. List of the pathogenic and likely pathogenic non-synonymous, splice site and nonsense sequence variants identified.
Gene | Change | # of fam | Status | Polyphen2prediction | Affected | Unaffected | ||
Carriers | Non-carriers | Carriers | Non-carriers | |||||
Pathogenic or likely pathogenic | ||||||||
APP | N660Y | 1 | Novel | probably damaging | 3 | 0 | 1 | 1 |
61.6±3 | - | 62 | 69 | |||||
PSEN1 | A79V | 4 | Previously reported Pathogenic | probably damaging | 10 | 1 | 3 | 13 |
68.9±8.5 | 77 | 60±4.3 | 70.62±12.95 | |||||
G206A | 3 | Previously reported Pathogenic | probably damaging | 6 | 0 | 0 | 1 | |
60.8±6.7 | - | - | 40 | |||||
MAPT | G201S | 1 | Novel | probably damaging | 2 | 0 | 2 | 2 |
74±0 | - | 61±5.7 | 49±4.2 | |||||
GRN | R110X | 1 | Previously reported Pathogenic | probably damaging | 3 | 0 | 0- | 5 |
66.3±2.1 | - | - | 72.2±5.26 | |||||
c.1414-1G>T | 2 | Novel | probably damaging | 8 | 1 | 0 | 1 | |
65.8±11.7 | 74 | - | 70 | |||||
R493X | 1 | Previously reported Pathogenic | probably damaging | 1 | 3 | 4 | 3 | |
70 | 78.3±1.15 | 56.3±4.04 | 56.3±11.06 | |||||
G515A | 1 | Previously reported Not pathogenic | probably damaging | 3 | 0 | 0 | 1 | |
80±7.5 | - | - | 66 |
List of the non-synonymous, splice and nonsense variants identified in the 439 sequenced samples. The identified variants were genotyped in all the available family samples. The number of affected carriers, non-carriers and the un-affected carriers, non-carriers, as well as the mean age at onset and the standard deviation for the affected and the age at last assessment for the unaffected individuals are shown.
The variants were classified as pathogenic, or likely pathogenic based on our segregation analyses, bioinformatic analyses, sequencing and genotyping data in additional cases and controls (table 5) and previous reports.