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Childhood onset dystonia, chorea or related movement disorder v3.53 ARX Sarah Leigh Tag Q4_23_promote_green tag was added to gene: ARX.
Childhood onset dystonia, chorea or related movement disorder v3.53 ARX Sarah Leigh changed review comment from: A review by Eldar Dedic (Independent Clinical Genetics Consultant)
Kwong, et al. (2019, PMID: 31324350) presented a Chinese family with infantile epileptic dyskinetic encephalopathy. The whole-exome-sequencing revealed ARX c.989G>A (p.Arg330His) in 13 years of age affected proband (who also suffered from dystonia), as well as in his unaffected mother and sister. Proband also had a healthy older brother who did not carry the variant. The proband’s muscle whole mitochondrial DNA analysis did not show the presence of a pathogenic variant. - Please note that ARX c.989G>A (p.Arg330His) was absent from gnomAD v2.1.1 as of December 2021 Gorman, et al. (2018, PMID: 29778428) presented 2 years of age Ohtahara syndrome male case of Romanian origin. Whole-exome-sequencing revealed ARX c.1600G>C (p.Ala534Pro) variant in a patient (who also had dystonia) and in his healthy mother (who was a low-level mosaic). The proband was negative for chromosomal array testing and had a normal brain MRI. - Please note that ARX c.1600G>C (p.Ala534Pro) was absent from gnomAD v2.1.1 as of December 2021 Charzewska, et al. (2013, PMID: 23657928) presented a family with intellectual disability and dystonia. Sequencing of ARX revealed the presence of c.4A>T (p.Ser2Cys) variant in 4 affected males (including 2 who had onset of dystonia at 2nd day of life and 12 years of age, respectively) and in 5 female carriers. - Please note that ARX c.4A>T (p.Ser2Cys) was absent from gnomAD v2.1.1 as of December 2021 Breen, et al. (2018, PMID: 29343471) presented 12 years of age male case with intellectual disability and hand dystonia. The ARX c.426_458dup (p.Gly143_Ala153dup) variant has been reported in the proband, his cousin and maternal uncle from Pakistan, both of which had hand dystonia, as well as in his unaffected mother. The patient had whole-exome-sequencing as one of the previous tests carried out. - Please note that ARX c.426_458dup (p.Gly143_Ala153dup) was absent from gnomAD v2.1.1 as of December 2021; to: A review by Eldar Dedic (Independent Clinical Genetics Consultant):
Kwong, et al. (2019, PMID: 31324350) presented a Chinese family with infantile epileptic dyskinetic encephalopathy. The whole-exome-sequencing revealed ARX c.989G>A (p.Arg330His) in 13 years of age affected proband (who also suffered from dystonia), as well as in his unaffected mother and sister. Proband also had a healthy older brother who did not carry the variant. The proband’s muscle whole mitochondrial DNA analysis did not show the presence of a pathogenic variant. - Please note that ARX c.989G>A (p.Arg330His) was absent from gnomAD v2.1.1 as of December 2021 Gorman, et al. (2018, PMID: 29778428) presented 2 years of age Ohtahara syndrome male case of Romanian origin. Whole-exome-sequencing revealed ARX c.1600G>C (p.Ala534Pro) variant in a patient (who also had dystonia) and in his healthy mother (who was a low-level mosaic). The proband was negative for chromosomal array testing and had a normal brain MRI. - Please note that ARX c.1600G>C (p.Ala534Pro) was absent from gnomAD v2.1.1 as of December 2021 Charzewska, et al. (2013, PMID: 23657928) presented a family with intellectual disability and dystonia. Sequencing of ARX revealed the presence of c.4A>T (p.Ser2Cys) variant in 4 affected males (including 2 who had onset of dystonia at 2nd day of life and 12 years of age, respectively) and in 5 female carriers. - Please note that ARX c.4A>T (p.Ser2Cys) was absent from gnomAD v2.1.1 as of December 2021 Breen, et al. (2018, PMID: 29343471) presented 12 years of age male case with intellectual disability and hand dystonia. The ARX c.426_458dup (p.Gly143_Ala153dup) variant has been reported in the proband, his cousin and maternal uncle from Pakistan, both of which had hand dystonia, as well as in his unaffected mother. The patient had whole-exome-sequencing as one of the previous tests carried out. - Please note that ARX c.426_458dup (p.Gly143_Ala153dup) was absent from gnomAD v2.1.1 as of December 2021
Childhood onset dystonia, chorea or related movement disorder v3.53 ARX Sarah Leigh commented on gene: ARX: A review by Eldar Dedic (Independent Clinical Genetics Consultant)
Kwong, et al. (2019, PMID: 31324350) presented a Chinese family with infantile epileptic dyskinetic encephalopathy. The whole-exome-sequencing revealed ARX c.989G>A (p.Arg330His) in 13 years of age affected proband (who also suffered from dystonia), as well as in his unaffected mother and sister. Proband also had a healthy older brother who did not carry the variant. The proband’s muscle whole mitochondrial DNA analysis did not show the presence of a pathogenic variant. - Please note that ARX c.989G>A (p.Arg330His) was absent from gnomAD v2.1.1 as of December 2021 Gorman, et al. (2018, PMID: 29778428) presented 2 years of age Ohtahara syndrome male case of Romanian origin. Whole-exome-sequencing revealed ARX c.1600G>C (p.Ala534Pro) variant in a patient (who also had dystonia) and in his healthy mother (who was a low-level mosaic). The proband was negative for chromosomal array testing and had a normal brain MRI. - Please note that ARX c.1600G>C (p.Ala534Pro) was absent from gnomAD v2.1.1 as of December 2021 Charzewska, et al. (2013, PMID: 23657928) presented a family with intellectual disability and dystonia. Sequencing of ARX revealed the presence of c.4A>T (p.Ser2Cys) variant in 4 affected males (including 2 who had onset of dystonia at 2nd day of life and 12 years of age, respectively) and in 5 female carriers. - Please note that ARX c.4A>T (p.Ser2Cys) was absent from gnomAD v2.1.1 as of December 2021 Breen, et al. (2018, PMID: 29343471) presented 12 years of age male case with intellectual disability and hand dystonia. The ARX c.426_458dup (p.Gly143_Ala153dup) variant has been reported in the proband, his cousin and maternal uncle from Pakistan, both of which had hand dystonia, as well as in his unaffected mother. The patient had whole-exome-sequencing as one of the previous tests carried out. - Please note that ARX c.426_458dup (p.Gly143_Ala153dup) was absent from gnomAD v2.1.1 as of December 2021
Childhood onset dystonia, chorea or related movement disorder v3.53 ARX Sarah Leigh reviewed gene: ARX: Rating: GREEN; Mode of pathogenicity: None; Publications: 31324350, 29778428, 23657928, 29343471; Phenotypes: ; Mode of inheritance: None
Childhood onset dystonia, chorea or related movement disorder v3.53 ARX Sarah Leigh Phenotypes for gene: ARX were changed from Partington Syndrome, 300382 to Developmental and epileptic encephalopathy 1, OMIM:308350; X-linked spasticity-intellectual disability-epilepsy syndromeMONDO:0017856; Partington syndrome, OMIM:309510; Partington syndrome, MONDO:0010654
Childhood onset dystonia, chorea or related movement disorder v3.52 ARX Sarah Leigh Publications for gene: ARX were set to
Childhood onset dystonia, chorea or related movement disorder v0.11 ARX Ellen McDonagh Classified gene: ARX as Amber List (moderate evidence)
Childhood onset dystonia, chorea or related movement disorder v0.11 ARX Ellen McDonagh Added comment: Comment on list classification: Promoted from Red to Amber due to review; for further clinical review.
Childhood onset dystonia, chorea or related movement disorder v0.11 ARX Ellen McDonagh Gene: arx has been classified as Amber List (Moderate Evidence).
Childhood onset dystonia, chorea or related movement disorder v0.1 ARX Ellen McDonagh gene: ARX was added
gene: ARX was added to Childhood onset dystonia or chorea or related movement disorder. Sources: South West GLH
Mode of inheritance for gene: ARX was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Phenotypes for gene: ARX were set to Partington Syndrome, 300382