Childhood onset hereditary spastic paraplegia
Gene: MAG
The rating of this gene has been updated to Green and the mode of inheritance set to BIALLELIC, autosomal or pseudoautosoma lfollowing NHS Genomic Medicine Service approval.Created: 10 Oct 2023, 5:14 p.m. | Last Modified: 10 Oct 2023, 5:17 p.m.
Panel Version: 4.20
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Comment on list classification: There is sufficient evidence to promote this gene to Green at the next GMS panel update.
At least 12 individuals from 8 families have been identified with biallelic variants in this gene. Clinical features are characterised by spasticity (9/13), neuropathy (8/13), optic atrophy (7/13), variable cognitive deficits (7/13), and cerebellar signs (10/13) including ataxia in some (8/13) although 3/10 showed normal brain MRI results.Created: 27 Feb 2023, 4:01 p.m. | Last Modified: 27 Feb 2023, 4:01 p.m.
Panel Version: 3.17
Eight unrelated families reported.Created: 19 Sep 2020, 7:47 a.m. | Last Modified: 19 Sep 2020, 7:47 a.m.
Panel Version: 2.15
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Spastic paraplegia 75, autosomal recessive, MIM# 616680
Publications
Variants in this GENE are reported as part of current diagnostic practice
Two families reported currently. Childhood onset. No additional patients identified using Sheffield panel.Created: 10 May 2019, 7:23 a.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Variants in this GENE are reported as part of current diagnostic practice
Amber gene with Green GLH rating, Gene discussed in view of discrepant rating(s) from GLH(s). Amber rating agreed at the GMS Neurology Specialist Test Group Webex on 17th May 2019.Created: 21 May 2019, 4:50 p.m.
Rating and review submitted on behalf of James Polke (Neurogenetics Laboratory,Institute of Neurology, London), on behalf of London North GLH for GMS Neurology specialist test group.Created: 9 May 2019, 4:54 p.m.
Amber rating on Hereditary spastic paraplegia panel 1.198
Comment on list classification: Updated rating from Grey to Amber: Gene added and rated red by Chris Buxton (Bristol NHS) based on 1 family in PMID:24482476. One additional family reported in PMID:26179919 but require at least one further case for diagnostic rating.
Rebecca Foulger (Genomics England curator), 18 Dec 2018
In 3 siblings with AR spastic paraplegia born of consanguineous Palestinian parents, Lossos et al. (2015, PMID:26179919) identified a homozygous c.399C-G transversion in the MAG gene (S133R).
Rebecca Foulger (Genomics England curator), 18 Dec 2018
PMID:24482476 (Novarino et al 2014) identified MAG as a HSP candidate gene based on the HSPome (network analysis). In 2 affected sisters from a consanguineous family (family 1226) with AR spastic paraplegia-75, PMID:24482476 identified homozygosity for a c.1288T-G transversion in the MAG gene (C430G).
Rebecca Foulger (Genomics England curator), 18 Dec 2018
1 family Novarino (2014, 24482476). Homozygous Cys430Gly with HSp phenotype. No other detail. 1 family. Limited evidence Diagnostic on Sheffield HSP panel Sources: Literature
Chris Buxton (North Bristol NHS Trust), 27 Nov 2018. Submitted Red rating.Created: 2 May 2019, 4:19 p.m.
Victoria: spastic paraplegia and cognitive impairment in childhood. 2 cases published in literature with spastic paraplegia. In sheffields HSP panelCreated: 28 Apr 2019, 4:16 p.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Spastic paraplegia 75, autosomal recessive, 616680
Tag Q1_23_promote_green was removed from gene: MAG.
Source Expert Review Green was added to MAG. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Tag Q1_23_promote_green tag was added to gene: MAG.
Publications for gene: MAG were set to 26179919; 24482476
Gene: mag has been classified as Amber List (Moderate Evidence).
Phenotypes for gene: MAG were changed from Spastic paraplegia 75, autosomal recessive, 616680 to Spastic paraplegia 75, autosomal recessive, OMIM:616680
Source Yorkshire and North East GLH was added to MAG.
Gene: mag has been classified as Amber List (Moderate Evidence).
Gene: mag has been classified as Green List (High Evidence).
Source NHS GMS was added to MAG.
Source London North GLH was added to MAG.
Added phenotypes Spastic paraplegia 75, autosomal recessive, 616680 for gene: MAG Publications for gene MAG were changed from 24482476; 26179919 to 26179919; 24482476
Rebecca Foulger: Comment on list classification
gene: MAG was added gene: MAG was added to Hereditary spastic paraplegia - childhood onset. Sources: Expert Review Amber,Literature Mode of inheritance for gene: MAG was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MAG were set to 24482476; 26179919 Phenotypes for gene: MAG were set to Spastic paraplegia 75, autosomal recessive, 616680