Likely inborn error of metabolism - targeted testing not possible
Gene: AFG3L2Comment on phenotypes: Ataxia, spastic, 5, autosomal recessive, 614487;Miscellaneous disorders/unknown function (Mitochondrial respiratory chain disorders (caused by nuclear variants only));Spinocerebellar ataxia 28, 610246;Disorders of mitochondrial DNA maintenance and integrityCreated: 18 May 2021, 4:52 p.m. | Last Modified: 18 May 2021, 4:52 p.m.
Panel Version: 2.135
Mode of inheritance
BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Variants in this GENE are reported as part of current diagnostic practice
Comment on mode of inheritance: On G2P, biallelic requirement for Ataxia, spastic, 5 autosomal recessive, and monoallelic for spinocerebellar ataxia 28.Created: 10 Feb 2016, 11:06 a.m.
Comment on list classification: Both reviewers agree this should be promoted from red to green. It is a "both developmental disorder and incidental (non-developmental) disorder" gene in G2P.Created: 10 Feb 2016, 11:05 a.m.
Phenotypes for gene: AFG3L2 were changed from Spastic ataxia 5, autosomal recessive OMIM:614487; spastic ataxia 5 MONDO:0013776; Spinocerebellar ataxia 28 OMIM:610246; spinocerebellar ataxia type 28 MONDO:0012450 to Optic atrophy 12, OMIM:618977; Spinocerebellar ataxia 28, OMIM:610246; Spastic ataxia 5, autosomal recessive, OMIM:614487
Phenotypes for gene: AFG3L2 were changed from Ataxia, spastic, 5, autosomal recessive, 614487; Miscellaneous disorders/unknown function (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Spinocerebellar ataxia 28, 610246; Disorders of mitochondrial DNA maintenance and integrity to Spastic ataxia 5, autosomal recessive OMIM:614487; spastic ataxia 5 MONDO:0013776; Spinocerebellar ataxia 28 OMIM:610246; spinocerebellar ataxia type 28 MONDO:0012450
Source NHS GMS was added to AFG3L2. Source London North GLH was added to AFG3L2.
Checked against super panel made up of the panel constituents. Ready to promote to version 1.
Added phenotypes Ataxia, spastic, 5, autosomal recessive, 614487; Miscellaneous disorders/unknown function (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Spinocerebellar ataxia 28, 610246; Disorders of mitochondrial DNA maintenance and integrity for gene: AFG3L2 Publications for gene AFG3L2 were changed from to 27604308
gene: AFG3L2 was added gene: AFG3L2 was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: AFG3L2 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Phenotypes for gene: AFG3L2 were set to Ataxia, spastic, 5, autosomal recessive, 614487; Spinocerebellar ataxia 28, 610246; Disorders of mitochondrial DNA maintenance and integrity