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Table 1 Genetic information of 16 CD patients (Study group)

From: The natural history of Canavan disease: 23 new cases and comparison with patients from literature

Patient

cDNA variant

Protein variant

Type of mutation

ACMG classification of variant (pathogenic, likely pathogenic, VOUS)

Previously reported (yes/no)

1/1

c.[914C > A];[914C > A]

p.[Ala305Glu];[Ala305Glu]

Missense/missense

Likely pathogenic/likely pathogenic

Yes/yes

2/1

c.[854A > C];[854A > C]

p.[Glu285Ala];[Glu285Ala]

Missense/missense

Likely pathogenic/likely pathogenic

Yes/yes

3/1

c.[914C > A];[914C > A]

p.[Ala305Glu];[Ala305Glu]

Missense/missense

Likely pathogenic/likely pathogenic

Yes/yes

4/1

c.[859G > A];[914C > A]

p.[Ala287Thr];[Ala305Glu]

Missense/missense

Pathogenic/likely pathogenic

Yes/yes

5/1

c.[854A > C];[914C > A]

p.[Glu285Ala];[Ala305Glu]

Missense/missense

Likely pathogenic/likely pathogenic

Yes/yes

6/1

c.[541C > A];[426C > A]

p.[Pro181Thr];[Tyr142*]

Missense/nonsense

Likely pathogenic/pathogenic

Yes/no

7/1a

c.[634 + 1G > T];[634 + 1G > T]

p.[?];[?]

Splice site/splice site

Pathogenic/pathogenic

Yes/yes

7/2 a

c.[634 + 1G > T];[634 + 1G > T]

p.[?];[?]

splice site/splice site

pathogenic/pathogenic

Yes/yes

8/1

c.[914C > A];[362A > T]

p.[Ala305Glu];[Asn121Ile]

Missense/missense

Likely pathogenic/likely pathogenic

Yes/yes

9/1

c.[878_880delAAG];[?]

p.[Glu293del];[?]

In frame del/?

Likely pathogenic/?

Yes/?

10/1

c.[885dupT];[?]

p.[Ala296Cysfs*5];[?]

Frameshift/?

Pathogenic/?

No/?

11/1

c.[838C > T];[79G > T]

p.[Pro280Ser];[Gly27*]

Missense/nonsense

Pathogenic/pathogenic

Yes/yes

12/1

c.[296delT];[296delT]

p.[Leu99Tyrfs*38];[Leu99Tyrfs*38]

Monsense/nonsense

Pathogenic/pathogenic

No/no

13/1

c.[854A > C];[693C > A]

p.[Glu285Ala];[Tyr231*]

Missense/missense

Likely pathogenic/pathogenic

Yes/yes

14/1 a

c.[914C > A];[914C > A]

p.[Ala305Glu];[Ala305Glu]

Missense/missense

Likely pathogenic/likely pathogenic

Yes/yes

14/2 a

c.[914C > A];[c.914C > A]

p.[Ala305Glu];[Ala305Glu]

Missense/missense

Likely pathogenic/likely pathogenic

Yes/yes

  1. aSiblings