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Likely inborn error of metabolism - targeted testing not possible v4.108 | CLCN6 |
Sarah Leigh gene: CLCN6 was added gene: CLCN6 was added to Likely inborn error of metabolism - targeted testing not possible. Sources: Other Mode of inheritance for gene: CLCN6 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: CLCN6 were set to 29667327; 26658788; 25794116; 21107136; 33217309; 16950870 Phenotypes for gene: CLCN6 were set to Neurodegeneration, childhood-onset, hypotonia, respiratory insufficiency and brain imaging abnormalities OMIM:619173 Review for gene: CLCN6 was set to RED Added comment: Sources: Other |
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Likely inborn error of metabolism - targeted testing not possible v4.101 | EDEM3 |
Sarah Leigh gene: EDEM3 was added gene: EDEM3 was added to Likely inborn error of metabolism - targeted testing not possible. Sources: Other Q4_23_promote_green tags were added to gene: EDEM3. Mode of inheritance for gene: EDEM3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EDEM3 were set to 34143952 Phenotypes for gene: EDEM3 were set to Congenital disorder of glycosylation, type 2V, OMIM:619493 Review for gene: EDEM3 was set to GREEN Added comment: Reviews copied from entry on Congenital disorders of glycosylation panel. There is sufficient evidence to promote this gene to Green at the next GMS panel update. EDEM3 is associated with a relevant phenotype in OMIM (MIM# 619493) and G2P with a 'strong' confidence level assertion. 12 individuals from 7 unrelated families identified by Polla et al. 2021 (PMID: 34143952) with various biallelic variants in the EDEM3 gene. Clinical characteristics were predominant for DD (12/12), ID (6/7), hypotonia (6/12) and facial dysmorphisms. (Arina Puzriakova (Genomics England Curator), 18 Jul 2022). PMID: 34143952: 7 families (11 individuals) with 6x PTV and 2x missense variants with neurodevelopmental delay and variable facial dysmorphisms. The unaffected parents were all heterozygous carriers. Functional studies show loss of EDEM3 enzymatic activity. Sources: Literature (Zornitza Stark (Australian Genomics), 7 Aug 2021). Sources: Other |
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Likely inborn error of metabolism - targeted testing not possible v4.52 | GCSH | Arina Puzriakova Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to Multiple mitochondrial dysfunctions syndrome 7, OMIM:620423; Glycine encephalopathy; Transient neonatal hyperglycinemia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v4.44 | LETM1 |
Sarah Leigh changed review comment from: Associated with relevant phenotype in OMIM and as moderate Gen2Phen gene. PMID: 36055214 reports 12 LETM1 variants in 11 unrelated cases of Neurodegeneration, childhood-onset, with multisystem involvement due to mitochondrial dysfunction (OMIM: 620089), together with supportive functional studies.; to: LETM1 variants have been associated with Neurodegeneration, childhood-onset, with multisystem involvement due to mitochondrial dysfunction, OMIM:620089 and as moderate Gen2Phen gene for LETM1-related neurodevelopmental disorder. PMID: 36055214 reports 10 LETM1 variants in 18 patients from 11 unrelated families with childhood-onset neurodegeneration with multisystem involvement, many of whom were gathered using the GeneMatcher Program. The most common clinical features of this cohort, where an assessment could be made, were: mitochondrial respiratory complex deficiencies 11/11 (100%), global developmental delay / intellectual disability 17/18 (94%), bilateral sensorineural hearing loss 11/14 (78%) , impaired vision 10/10 (100%), cerebellar ataxia 7/9 (78%), seizures 10/15 (67%), hypotonia 11/18 (61%) (PMID: 36055214, figure 1c). |
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Likely inborn error of metabolism - targeted testing not possible v4.33 | LETM1 | Sarah Leigh Phenotypes for gene: LETM1 were changed from Multiple respiratory chain complex deficiencies (disorders of protein synthesis) to Neurodegeneration, childhood-onset, with multisystem involvement due to mitochondrial dysfunction, OMIM:620089 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.17 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.16 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.16 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.16 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.16 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.16 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.15 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.15 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.16 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.15 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.15 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.15 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.15 | GCSH | Achchuthan Shanmugasundram Phenotypes for gene: GCSH were changed from Glycine encephalopathy to ?Glycine encephalopathy, OMIM:605899; Neurodevelopmental disorder, MONDO:0700092 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.13 | GCSH | Achchuthan Shanmugasundram reviewed gene: GCSH: Rating: GREEN; Mode of pathogenicity: None; Publications: 36190515; Phenotypes: ?Glycine encephalopathy, OMIM:605899, Neurodevelopmental disorder, MONDO:0700092; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v3.13 | SLC31A1 |
Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are two unrelated cases reported with neurodegeneration associated with copper deficiency. This gene has been associated with phenotype in Gene2Phenotype, but not in OMIM. |
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Likely inborn error of metabolism - targeted testing not possible v3.13 | SLC31A1 |
Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are two unrelated cases reported with neurodegeneration associated with copper deficiency. This gene has been associated with phenotype in Gene2Phenotype, but not in OMIM. |
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Likely inborn error of metabolism - targeted testing not possible v3.13 | SLC31A1 |
Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are two unrelated cases reported with neurodegeneration associated with copper deficiency. This gene has been associated with phenotype in Gene2Phenotype, but not in OMIM. |
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Likely inborn error of metabolism - targeted testing not possible v3.12 | SLC31A1 |
Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are two unrelated cases reported with neurodegeneration associated with copper deficiency. This gene has been associated with phenotype in Gene2Phenotype, but not in OMIM. |
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Likely inborn error of metabolism - targeted testing not possible v3.12 | SLC31A1 |
Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are two unrelated cases reported with neurodegeneration associated with copper deficiency. This gene has been associated with phenotype in Gene2Phenotype, but not in OMIM. |
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Likely inborn error of metabolism - targeted testing not possible v3.12 | SLC31A1 |
Achchuthan Shanmugasundram Added comment: Comment on list classification: This gene should be rated AMBER as there are two unrelated cases reported with neurodegeneration associated with copper deficiency. This gene has been associated with phenotype in Gene2Phenotype, but not in OMIM. |
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Likely inborn error of metabolism - targeted testing not possible v3.11 | SLC31A1 |
Achchuthan Shanmugasundram gene: SLC31A1 was added gene: SLC31A1 was added to Inborn errors of metabolism. Sources: Literature Mode of inheritance for gene: SLC31A1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC31A1 were set to 35913762; 36562171 Phenotypes for gene: SLC31A1 were set to Neurodevelopmental disorder, MONDO:0700092 Review for gene: SLC31A1 was set to AMBER Added comment: PMID:35913762 reported an identical twin male infants identified with homozygous novel missense variant p.Arg95His in CTR1. The twins had hypotonia, global developmental delay, seizures, and rapid brain atrophy, consistent with profound central nervous system copper deficiency. In addition, the CSF copper levels were lower and functional studies including structural modelling of the variant showed impaired copper transport. Treatment with copper Histidinate in the patients' cultured cells and in the patients normalized CCO activity and enhanced mitochondrial respiration in vitro, and was associated with modest clinical improvements. PMID:36562171 reported a newborn infant of consanguineous parents with a homozygous pathogenic variant p.Leu79Pro in CTR1. This infant was born with pulmonary hypoplasia. At two weeks of age, multifocal brain hemorrhages were diagnosed and the infant developed seizures. Laboratory investigations revealed very low serum concentrations of copper and ceruloplasmin. The infant died at one month of age. Sources: Literature |
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Likely inborn error of metabolism - targeted testing not possible v2.306 | TWNK | Arina Puzriakova Phenotypes for gene: TWNK were changed from Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286; Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic) to Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), OMIM:271245; Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 3, OMIM:609286; Perrault syndrome 5, OMIM:616138 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.304 | SDHA | Arina Puzriakova Phenotypes for gene: SDHA were changed from Leigh syndrome, 256000; Paragangliomas 5, 614165; Cardiomyopathy, dilated, 1GG, 613642; Isolated complex II deficiency; Mitochondrial respiratory chain complex II deficiency, 252011; Complex II (Mitochondrial respiratory chain disorders (caused by nuclear variants only), OXPHOS structural subunits); Mitochondrial Respiratory Chain Complex II Deficiency to Mitochondrial complex II deficiency, nuclear type 1, OMIM:252011; Neurodegeneration with ataxia and late-onset optic atrophy, OMIM:619259; Cardiomyopathy, dilated, 1GG, OMIM:613642 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.265 | SDHA | Arina Puzriakova reviewed gene: SDHA: Rating: GREEN; Mode of pathogenicity: ; Publications: 27683074, 10976639, 33471299; Phenotypes: Cardiomyopathy, dilated, 1GG, OMIM: 613642, Mitochondrial complex II deficiency, nuclear type 1, OMIM: 252011, Neurodegeneration with ataxia and late-onset optic atrophy, OMIM: 619259; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.243 | C19orf12 | Sarah Leigh edited their review of gene: C19orf12: Added comment: Monfrini et al (PMID: 29295770) and Gregory et al (PMID: 31087512) have reported heterozygous pathogenic C19ORF12 variants in patients with neurodegeneration with brain iron accumulation 4 (OMIM: 614298). Therefore, the mode of inheritance for this gene should be BOTH monoallelic and biallelic, autosomal or pseudoautosomal.; Changed publications to: 29295770, 31087512; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.243 | C19orf12 | Sarah Leigh Phenotypes for gene: C19orf12 were changed from Neurodegeneration with brain iron accumulation (NBIA) (Disorder of iron metabolism); Neurodegeneration with brain iron accumulation 4, 614298; Mitochondrial Membrane Protein-Associated Neurodegeneration to ?Spastic paraplegia 43, autosomal recessive, OMIM:615043; Neurodegeneration with brain iron accumulation 4, OMIM: 614298 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.241 | SLC5A6 | Arina Puzriakova Phenotypes for gene: SLC5A6 were changed from SLC5A6-related Neurodevelopmental Disorder to Neurodegeneration, infantile-onset, biotin-responsive, OMIM:618973 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.198 | CLPB |
Arina Puzriakova Added comment: Comment on mode of inheritance: MOI should be updated from 'Biallelic' to 'Both mono- and biallelic' at the next GMS update. Wortmann et al. 2021 (PMID: 34140661) published six unrelated individuals with one of four different de novo monoallelic missense variants in CLPB. The phenotype overlapped with that observed in the recessive disease including neurodevelopmental delay, seizures, 3-MGA-uria, and neutropenia. Some functional studies of heterozygous variants were performed. |
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Likely inborn error of metabolism - targeted testing not possible v2.37 | SHMT2 | Arina Puzriakova commented on gene: SHMT2: SHMT2 is listed in Gene2Phenotype with a 'probable' disease confidence rating for 'SHMT2-related neurodevelopmental syndrome', and is also associated with 'Neurodevelopmental disorder with cardiomyopathy, spasticity, and brain abnormalities, MIM# 619121' in OMIM. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.37 | SHMT2 |
Arina Puzriakova gene: SHMT2 was added gene: SHMT2 was added to Inborn errors of metabolism. Sources: Literature for-review tags were added to gene: SHMT2. Mode of inheritance for gene: SHMT2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SHMT2 were set to 33015733 Phenotypes for gene: SHMT2 were set to Neurodevelopmental disorder with cardiomyopathy, spasticity, and brain abnormalities, OMIM:619121 Review for gene: SHMT2 was set to GREEN Added comment: PMID: 33015733 (2020) - 5 individuals from 4 families with a novel brain and heart developmental syndrome caused by biallelic SHMT2 pathogenic variants. Clinical features include dysmorphism, congenital microcephaly, hypertrophic cardiomyopathy or atrial-septal defects, DD/ID and motor dysfunction, in the form of spastic paraparesis, ataxia, and/or peripheral neuropathy. SHMT2 encodes the mitochondrial form of serine hydroxymethyltransferase. The enzyme transfers one-carbon units from serine to tetrahydrofolate (THF) and generates glycine and 5,10,methylene-THF. While plasma metabolites were within normal range and SHMT2 protein levels not significantly altered in patient fibroblasts, the authors provide evidence for impaired enzymatic function eg. presence of the SHMT2 substrate (THF) in patient but not control (mitochondria-enriched) fibroblasts, decrease in glycine/serine ratios, impaired folate metabolism. Patient fibroblasts displayed impaired oxidative capacity (reduced ATP levels in a medium without glucose, diminished oxygen consumption rates). Mitochondrial membrane potential and ROS levels were also suggestive of redox malfunction. Sources: Literature |
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Likely inborn error of metabolism - targeted testing not possible v2.14 | ALG14 | Sarah Leigh Added comment: Comment on list classification: Associated with Myasthenic syndrome, congenital, 15, without tubular aggregates 616227 in OMIM, but not associated with phenotype in Gen2Phen. At least 6 variants reported in at least 5 cases with varying phenotypes. PMID 23404334 reports compound heterozygous (p.P65L, P.R104*) sibs, who manifested with myasthenic syndromes, but did not have intellectural disability nor seizures and were 62 and 51 years old when reported. PMID 28733338 reports two compound heterozygous (p.D74N, pV141G), (p.D74N, p.R109Q) cases and a homozygous (p.D74N), with early and lethal neurodegeneration with myasthenic and myopathic features, but the cases died before intellectual disability was manifiest. However, seizures were evident in two compound heterozygous families. PMID 30221345 reports a homozygous splicing variant in a case with intellectual disability and seizures. Functional studies were presented showing that this variant resulting in exon skipping, however, this was not completely prenetrant as wild type protein was detected at a low level in the patient. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v2.9 | SLC5A6 |
Sarah Leigh gene: SLC5A6 was added gene: SLC5A6 was added to Inborn errors of metabolism. Sources: Literature Mode of inheritance for gene: SLC5A6 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC5A6 were set to 27904971; 31392107; 31754459; 23104561; 29669219 Phenotypes for gene: SLC5A6 were set to SLC5A6-related Neurodevelopmental Disorder Review for gene: SLC5A6 was set to GREEN Added comment: Not associated with phenotype in OMIM and as possible Gen2Phen gene for SLC5A6-related Neurodevelopmental Disorder. At least 5 variants published in three unrelated famililies (4 cases total) with SLC5A6-related Neurodevelopmental Disorder, together with supportive functional studies (PMID 29669219; 23104561). One of the cases had mixed semiology seizures including focal dyscognitive, absence, tonic spasms and generalised convulsive seizures with electrographic features of encephalopathy with generalised and independent multifocal spike-wave discharges (PMID 31754459), another case had brain, immune, bone and intestinal dysfunction (PMID 27904971) and the third had metabolic dysfunction mimicking biotinidase deficiency (PMID 31392107). This condition could be treated with biotin supplementation and introduction of pantothenic acid supplementation (PMID 31392107). Sources: Literature |
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Likely inborn error of metabolism - targeted testing not possible v1.404 | COASY |
Catherine Snow gene: COASY was added gene: COASY was added to Inborn errors of metabolism. Sources: Expert list Mode of inheritance for gene: COASY was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: COASY were set to 30089828 Phenotypes for gene: COASY were set to Neurodegeneration with brain iron accumulation 6, 615643; Pontocerebellar hypoplasia, type 12, 618266 Review for gene: COASY was set to AMBER Added comment: COASY has sufficient evidence to be made Green however as it has been purposefully not rated by experts as Green on Mitochondrial Panels COASY will be rated as Amber. Sources: Expert list |
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Likely inborn error of metabolism - targeted testing not possible v1.338 | ISCA2 | Sarah Leigh Added comment: Comment on phenotypes: infantile neurodegenerative mitochondrial disorder | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v1.335 | ISCA2 | Sarah Leigh Added comment: Comment on phenotypes: infantile neurodegenerative mitochondrial disorder | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v1.335 | ISCA2 | Sarah Leigh Phenotypes for gene: ISCA2 were changed from infantile neurodegenerative mitochondrial disorder to Multiple mitochondrial dysfunctions syndrome 4 616370 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v1.205 | PANK2 |
Sarah Leigh Added comment: Comment on list classification: This gene was part of an initial gene list collated by Emma Ashton on behalf of the London North GLH, for GMS Metabolic Consensus Specialist Test Group. Additional information was not provided, such as mode of inheritance and phenotype. Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. At least 13 variants reported for Neurodegeneration with brain iron accumulation 234200 and 3 variants in 2 unrelated cases of HARP syndrome 607236. |
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Likely inborn error of metabolism - targeted testing not possible v1.205 | PANK2 |
Sarah Leigh Added comment: Comment on list classification: This gene was part of an initial gene list collated by Emma Ashton on behalf of the London North GLH, for GMS Metabolic Consensus Specialist Test Group. Additional information was not provided, such as mode of inheritance and phenotype. Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. At least 13 variants reported for Neurodegeneration with brain iron accumulation 234200 and 3 variants in 2 unrelated cases of HARP syndrome 607236. |
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Likely inborn error of metabolism - targeted testing not possible v1.204 | PANK2 | Sarah Leigh Phenotypes for gene: PANK2 were changed from Neurodegeneration with brain iron accumulation 1, 234200HARP syndrome, 607236; Early onset dystonia; Posterior segment abnormalities; Parkinson Disease and Complex Parkinsonism; Neurodegeneration with brain iron accumulation (NBIA) (Disorder of iron metabolism); Pantothenate kinases deficiency (Other disorders of vitamins and cofactors) to HARP syndrome 607236; Neurodegeneration with brain iron accumulation 234200 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v1.76 | WARS2 |
Sarah Leigh Source Expert Review Green was added to WARS2. Mode of inheritance for gene WARS2 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal Added phenotypes Neurodevelopmental disorder, mitochondrial, with abnormal movements and lactic acidosis, with or without seizures, 617710 for gene: WARS2 Publications for gene WARS2 were changed from to 28650581; 28905505; 28236339 Rating Changed from Red List (low evidence) to Green List (high evidence) |
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Likely inborn error of metabolism - targeted testing not possible v1.47 | UROD |
Ivone Leong Source NHS GMS was added to UROD. Source London North GLH was added to UROD. |
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Likely inborn error of metabolism - targeted testing not possible v1.44 | TWNK | Rebecca Foulger Phenotypes for gene: TWNK were changed from Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic) to Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286; Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v0.4 | WDR45 |
Ellen McDonagh gene: WDR45 was added gene: WDR45 was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: WDR45 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males) Publications for gene: WDR45 were set to 27604308 Phenotypes for gene: WDR45 were set to Neurodegeneration with brain iron accumulation 5 |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | UROD |
Ellen McDonagh gene: UROD was added gene: UROD was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: UROD was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: UROD were set to 27604308 Phenotypes for gene: UROD were set to Porphyria cutanea tarda (Porphyrias with erosive photodermatosis) |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | TWNK | Ellen McDonagh Added phenotypes Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic) for gene: TWNK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v0.4 | TWNK |
Ellen McDonagh gene: TWNK was added gene: TWNK was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: TWNK was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: TWNK were set to 27604308 Phenotypes for gene: TWNK were set to Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic) |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | TXN2 |
Ellen McDonagh gene: TXN2 was added gene: TXN2 was added to Inborn errors of metabolism. Sources: Expert Review Red Mode of inheritance for gene: TXN2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TXN2 were set to PMID: 26626369 Phenotypes for gene: TXN2 were set to infantile-onset neurodegenerative disorder with severe cerebellar atrophy, epilepsy, dystonia, optic atrophy, and peripheral neuropathy; ?Combined oxidative phosphorylation deficiency 29 |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | TANGO2 |
Ellen McDonagh gene: TANGO2 was added gene: TANGO2 was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: TANGO2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TANGO2 were set to 26805782; 26805781 Phenotypes for gene: TANGO2 were set to Metabolic encephalomyopathic crises, recurrent, with rhabdomyolysis, cardiac arrhythmias, and neurodegeneration 616878 |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | PANK2 | Ellen McDonagh Added phenotypes Neurodegeneration with brain iron accumulation 1, 234200HARP syndrome, 607236 for gene: PANK2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v0.4 | PANK2 |
Ellen McDonagh gene: PANK2 was added gene: PANK2 was added to Inborn errors of metabolism. Sources: Expert Review Amber Mode of inheritance for gene: PANK2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PANK2 were set to 27604308 Phenotypes for gene: PANK2 were set to Early onset dystonia; Neurodegeneration with brain iron accumulation (NBIA) (Disorder of iron metabolism); Pantothenate kinases deficiency (Other disorders of vitamins and cofactors); Posterior segment abnormalities; Parkinson Disease and Complex Parkinsonism |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | ISCA2 |
Ellen McDonagh gene: ISCA2 was added gene: ISCA2 was added to Inborn errors of metabolism. Sources: Expert Review Red Mode of inheritance for gene: ISCA2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ISCA2 were set to PMID: 25539947 Phenotypes for gene: ISCA2 were set to infantile neurodegenerative mitochondrial disorder |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | FOLR1 |
Ellen McDonagh gene: FOLR1 was added gene: FOLR1 was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: FOLR1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FOLR1 were set to 27604308 Phenotypes for gene: FOLR1 were set to Neurodegeneration due to cerebral folate transport deficiency, 613068; Cerebral folate deficiency due to FOLR1 deficiency (Disorders of folate metabolism and transport) |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | FA2H |
Ellen McDonagh gene: FA2H was added gene: FA2H was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: FA2H was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FA2H were set to 27604308 Phenotypes for gene: FA2H were set to Fatty acid 2-hydroxylase deficiency (Disorders of complex lipid synthesis); Early onset dystonia; Neurodegeneration with brain iron accumulation (NBIA) (Disorder of iron metabolism); Hereditary spastic paraplegia |
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Likely inborn error of metabolism - targeted testing not possible v0.4 | C19orf12 | Ellen McDonagh Added phenotypes Mitochondrial Membrane Protein-Associated Neurodegeneration; Neurodegeneration with brain iron accumulation 4, 614298 for gene: C19orf12 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Likely inborn error of metabolism - targeted testing not possible v0.4 | C19orf12 |
Ellen McDonagh gene: C19orf12 was added gene: C19orf12 was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: C19orf12 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: C19orf12 were set to 27604308 Phenotypes for gene: C19orf12 were set to Neurodegeneration with brain iron accumulation (NBIA) (Disorder of iron metabolism); Neurodegeneration with brain iron accumulation 4, 614298; Mitochondrial Membrane Protein-Associated Neurodegeneration |