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Mendeliome v1.1596 CIAO1 Paul De Fazio changed review comment from: PMID:38196629 (note pre-print) describes 4 unrelated patients with core features of progressive muscle weakness, respiratory insufficiency, joint hyperlaxity, ankle tightness, calf pseudohypertrophy, elevated CK, and larning disabilities/difficulties. 2 patients presented with increased iron deposition in the brain. Age of recognition of myopathic symptoms varied from early childhood to adolescence.

PMID: 38411040 reports 2 unrelated patients. Patient 1 was born with microcephaly and borderline hypertonia, and died at 18 months of respiratory failure from bronchiolitis. Patient 2 presented with failure to thrive, a hyperkinetic movement disorder, and autism before deteriorating in late teens with muscle weakness, recurrent pneuomonia with respiratory insufficiency, and eventually death due to multi-organ failure with carnificating pneumonia, septic cardiomyopathy, and intracranial hemorrhages. Immune deficiency was ruled out.

All variants reported were homozygous or compound heterozygous missense variants, with the exception of one large in-frame deletion of exon 7. Cell line studies showed the variants resulted in reduced protein stability and downstream cellular defects which could be rescued by wild-type CIAO1.
Sources: Literature; to: PMID:38196629 (note pre-print) describes 4 unrelated patients with core features of progressive muscle weakness, respiratory insufficiency, joint hyperlaxity, ankle tightness, calf pseudohypertrophy, elevated CK, and larning disabilities/difficulties. 2 patients presented with increased iron deposition in the brain. Age of recognition of myopathic symptoms varied from early childhood to adolescence. Muscle biopsy showed variation in fiber size and an increase in internalized nuclei, as well as scattered degenerating/regenerating fibers and a mild to minimal increase in endomysial fibrosis. Electron microscopy revealed morphologically abnormal mitochondria.

PMID: 38411040 reports 2 unrelated patients. Patient 1 was born with microcephaly and borderline hypertonia, and died at 18 months of respiratory failure from bronchiolitis. Patient 2 presented with failure to thrive, a hyperkinetic movement disorder, and autism before deteriorating in late teens with muscle weakness, recurrent pneuomonia with respiratory insufficiency, and eventually death due to multi-organ failure with carnificating pneumonia, septic cardiomyopathy, and intracranial hemorrhages. Immune deficiency was ruled out.

All variants reported were homozygous or compound heterozygous missense variants, with the exception of one large in-frame deletion of exon 7. Cell line studies showed the variants resulted in reduced protein stability and downstream cellular defects which could be rescued by wild-type CIAO1.
Mendeliome v1.1596 CIAO1 Paul De Fazio gene: CIAO1 was added
gene: CIAO1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CIAO1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CIAO1 were set to 38411040; 38196629
Phenotypes for gene: CIAO1 were set to Neuromuscular disease, CIAO1-related (MONDO:0019056)
Penetrance for gene: CIAO1 were set to unknown
Review for gene: CIAO1 was set to GREEN
gene: CIAO1 was marked as current diagnostic
Added comment: PMID:38196629 (note pre-print) describes 4 unrelated patients with core features of progressive muscle weakness, respiratory insufficiency, joint hyperlaxity, ankle tightness, calf pseudohypertrophy, elevated CK, and larning disabilities/difficulties. 2 patients presented with increased iron deposition in the brain. Age of recognition of myopathic symptoms varied from early childhood to adolescence.

PMID: 38411040 reports 2 unrelated patients. Patient 1 was born with microcephaly and borderline hypertonia, and died at 18 months of respiratory failure from bronchiolitis. Patient 2 presented with failure to thrive, a hyperkinetic movement disorder, and autism before deteriorating in late teens with muscle weakness, recurrent pneuomonia with respiratory insufficiency, and eventually death due to multi-organ failure with carnificating pneumonia, septic cardiomyopathy, and intracranial hemorrhages. Immune deficiency was ruled out.

All variants reported were homozygous or compound heterozygous missense variants, with the exception of one large in-frame deletion of exon 7. Cell line studies showed the variants resulted in reduced protein stability and downstream cellular defects which could be rescued by wild-type CIAO1.
Sources: Literature
Mendeliome v1.1580 NIT1 Paul De Fazio gene: NIT1 was added
gene: NIT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NIT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NIT1 were set to 38430071
Phenotypes for gene: NIT1 were set to Cerebrovascular disorder, NIT1-related (MONDO:0011057)
Penetrance for gene: NIT1 were set to unknown
gene: NIT1 was marked as current diagnostic
Added comment: 5 unrelated families reported with recessively inherited cerebral small vessel disease had compound hetereozygous or homozygous variants in NIT1. 1 family (3 siblings) had p.(Ala68*) in trans with p.(Arg243Trp), the remaining 4 families (1 individual each) were all homozygous for p.(Arg243Trp).

Patients presented in mid-adulthood with progressive movement disorders (e.g. dystonia, chorea, bradykinesia and tremor, gait disturbance, dysarthria) and had abnormal brain MRI findings (honeycomb appearance of the basal ganglia-thalamus complex, due to numerous strongly dilated PVS). 3 patients had non-lobar intracerebral hemorrhage. Slowly progressive cognitive decline was also a key feature.

Metabolic analysis in urine confirmed loss of NIT1 enzymatic function.

Note p.(Arg243Trp) has 1 homozygote in gnomAD v4, but permitted due to later presentation in reported patients.
Sources: Literature
Mendeliome v1.1529 DNM2 Bryony Thompson reviewed gene: DNM2: Rating: RED; Mode of pathogenicity: None; Publications: 23092955; Phenotypes: fetal akinesia-cerebral and retinal hemorrhage syndrome MONDO:0014149; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.1251 GPRASP1 Paul De Fazio gene: GPRASP1 was added
gene: GPRASP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GPRASP1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: GPRASP1 were set to 37787182
Phenotypes for gene: GPRASP1 were set to Arteriovenous hemangioma/malformation, GPRASP1-related, MONDO:0001256
Penetrance for gene: GPRASP1 were set to unknown
Review for gene: GPRASP1 was set to AMBER
gene: GPRASP1 was marked as current diagnostic
Added comment: Two hemizygous germline missense variants, p.Arg1167Trp and p.Trp553Cys, were identified in three male patients presenting with spinal AVM, Cobb syndrome, or scalp AVM. The variants were inherited from unaffected heterozygous mothers. Note that p.Arg1167Trp has hemizygous (>70) and homozygous individuals reported in gnomAD.

The variants were found to result in LoF in endothelial cells. Endothelial Gprasp1 knockout mice suffered a high probability of cerebral hemorrhage, AVMs, and exhibited vascular anomalies in multiple organs.
Sources: Literature
Mendeliome v1.995 ANO1 Zornitza Stark Phenotypes for gene: ANO1 were changed from Intestinal dysmotility syndrome, MIM# 620045; Impaired intestinal peristalsis; haemorrhagic diarrhoea; dysmorphic features to Intestinal dysmotility syndrome, MIM# 620045; Moyamoya disease, MONDO:0016820, ANO1 related
Mendeliome v1.878 ESAM Zornitza Stark Phenotypes for gene: ESAM were changed from Neurodevelopmental disorder (MONDO#0700092), ESAM-related to Neurodevelopmental disorder with intracranial haemorrhage, seizures, and spasticity, MIM# 620371
Mendeliome v1.877 ESAM Zornitza Stark reviewed gene: ESAM: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Neurodevelopmental disorder with intracranial haemorrhage, seizures, and spasticity, MIM# 620371; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.338 ANO1 Zornitza Stark Phenotypes for gene: ANO1 were changed from Impaired intestinal peristalsis; haemorrhagic diarrhoea; dysmorphic features to Intestinal dysmotility syndrome, MIM# 620045; Impaired intestinal peristalsis; haemorrhagic diarrhoea; dysmorphic features
Mendeliome v1.15 IKBKG Zornitza Stark edited their review of gene: IKBKG: Added comment: X-linked systemic autoinflammatory disease (SAIDX) is characterized by the onset of systemic autoinflammation in the first months of life. Features include lymphadenopathy, hepatosplenomegaly, fever, panniculitis, and nodular skin rash. Additional manifestations may include inflammation of the optic nerve, intracranial hemorrhage, and lipodystrophy. Laboratory studies show hypogammaglobulinemia, increased or decreased white blood cell count, autoimmune cytopenias, elevated serum inflammatory markers, and a type I interferon signature. 6 unrelated boys and a girl reported. All variants resulted in absence of the domain encoded by exon 5 (NEMOdelEx5).

Note variants in this gene are associated with immunodeficiency +/- ectodermal features and with IP.; Changed phenotypes: Ectodermal dysplasia and immunodeficiency 1, MIM# 300291, Immunodeficiency 33 , MIM#300636, Incontinentia pigmenti, MIM# 308300, Autoinflammatory disease, systemic, X-linked, MIM# 301081
Mendeliome v0.14689 GDF2 Zornitza Stark Phenotypes for gene: GDF2 were changed from to Telangiectasia, hereditary hemorrhagic, type 5 OMIM # 615506; pulmonary arteriovenous malformations
Mendeliome v0.14592 GDF2 Chirag Patel reviewed gene: GDF2: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 23972370, 27081547, 32573726, 32992168, 34611981, 33834622, 32669404, 26056270, 23972370; Phenotypes: Telangiectasia, hereditary hemorrhagic, type 5 OMIM # 615506, pulmonary arteriovenous malformations; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.12855 PDCD1 Krithika Murali changed review comment from: No OMIM gene disease association.

1 individual from a consanguineous family reported with PDCD1 deficiency.

PMID: 34183838 (Nat Medicine 2021) - proband is the son of consanguineous Turkish parents. He was diagnosed with type 1 diabetes (T1D), hypothyroidism, and juvenile idiopathic arthritis (JIA) at the age of three years. He developed abdominal TB age 10 and died from pulmonary alveolar haemorrhage age 11. WES identified homozygous intragenic PDCD1 gene duplication (c.105dupC p.T36Hfs*70). Absent from population databases and unaffected parents confirmed to be heterozygous. Supportive in vitro studies showing absent expression or function of PD-1 protein. Proband's older brother died at the age of 3 from unexplained pneumonitis and had a history of T1DM and juvenile idiopathic arthritis.; to: No OMIM gene disease association.

1 individual from a consanguineous family reported with PDCD1 deficiency.

PMID: 34183838 (Nat Medicine 2021) - proband is the son of consanguineous Turkish parents. He was diagnosed with type 1 diabetes (T1D), hypothyroidism, and juvenile idiopathic arthritis (JIA) at the age of three years. He developed abdominal TB age 10 and died from pulmonary alveolar haemorrhage age 11. WES identified homozygous intragenic PDCD1 gene duplication (c.105dupC p.T36Hfs*70). Absent from population databases and unaffected parents confirmed to be heterozygous. Supportive in vitro studies showing absent expression or function of PD-1 protein. Proband's older brother died at the age of 3 from unexplained pneumonitis and had a history of T1DM and juvenile idiopathic arthritis.
Mendeliome v0.12407 ENG Bryony Thompson Phenotypes for gene: ENG were changed from to hereditary hemorrhagic telangiectasia MONDO:0019180
Mendeliome v0.12404 ENG Bryony Thompson reviewed gene: ENG: Rating: GREEN; Mode of pathogenicity: None; Publications: 34012068, 30336550, 7894484, 10751092, 20414677, 30763665, 17384219, 20364125; Phenotypes: hereditary hemorrhagic telangiectasia MONDO:0019180; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted; Current diagnostic: yes
Mendeliome v0.12227 SERPINA1 Zornitza Stark Phenotypes for gene: SERPINA1 were changed from to Emphysema due to AAT deficiency, MIM#613490; Emphysema-cirrhosis, due to AAT deficiency, MIM#613490; Hemorrhagic diathesis due to antithrombin Pittburgh, MIM#613490; alpha 1-antitrypsin deficiency, MONDO#0013282
Mendeliome v0.12224 SERPINA1 Samantha Ayres reviewed gene: SERPINA1: Rating: GREEN; Mode of pathogenicity: None; Publications: 20301692, 9041988, 34408829; Phenotypes: Emphysema due to AAT deficiency, MIM#613490, Emphysema-cirrhosis, due to AAT deficiency, MIM#613490, Hemorrhagic diathesis due to antithrombin Pittburgh, MIM#613490, alpha 1-antitrypsin deficiency, MONDO#0013282; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.11723 ACVRL1 Elena Savva Phenotypes for gene: ACVRL1 were changed from Telangiectasia, hereditary hemorrhagic, type 2 MIM#600376 to Telangiectasia, hereditary hemorrhagic, type 2 MIM#600376
Mendeliome v0.11723 ACVRL1 Elena Savva Phenotypes for gene: ACVRL1 were changed from Telangiectasia, hereditary hemorrhagic, type 2 MIM#600376 to Telangiectasia, hereditary hemorrhagic, type 2 MIM#600376
Mendeliome v0.11722 ACVRL1 Elena Savva Phenotypes for gene: ACVRL1 were changed from to Telangiectasia, hereditary hemorrhagic, type 2 MIM#600376
Mendeliome v0.11720 ACVRL1 Elena Savva reviewed gene: ACVRL1: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 16542389; Phenotypes: Telangiectasia, hereditary hemorrhagic, type 2 MIM#600376; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Mendeliome v0.11636 SMAD4 Zornitza Stark Phenotypes for gene: SMAD4 were changed from to Juvenile polyposis/hereditary haemorrhagic telangiectasia syndrome, MIM# 175050; Polyposis, juvenile intestinal, MIM# 174900; Myhre syndrome, MIM# 139210
Mendeliome v0.11633 SMAD4 Zornitza Stark reviewed gene: SMAD4: Rating: GREEN; Mode of pathogenicity: None; Publications: 30809044, 15235019, 16613914, 20101697, 22158539, 22243968; Phenotypes: Juvenile polyposis/hereditary haemorrhagic telangiectasia syndrome, MIM# 175050, Polyposis, juvenile intestinal, MIM# 174900, Myhre syndrome, MIM# 139210; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.11492 IL6 Zornitza Stark Phenotypes for gene: IL6 were changed from to {Crohn disease-associated growth failure} 266600; {Intracranial hemorrhage in brain cerebrovascular malformations, susceptibility to} 108010; {Rheumatoid arthritis, systemic juvenile} 604302; {Kaposi sarcoma, susceptibility to} 148000; {Type 1 diabetes mellitus} 222100; {Type 2 diabetes mellitus} 125853
Mendeliome v0.11490 IL6 Zornitza Stark reviewed gene: IL6: Rating: ; Mode of pathogenicity: None; Publications: ; Phenotypes: {Crohn disease-associated growth failure} 266600, {Intracranial hemorrhage in brain cerebrovascular malformations, susceptibility to} 108010, {Rheumatoid arthritis, systemic juvenile} 604302, {Kaposi sarcoma, susceptibility to} 148000, {Type 1 diabetes mellitus} 222100, {Type 2 diabetes mellitus} 125853; Mode of inheritance: None
Mendeliome v0.9121 RHAG Zornitza Stark Marked gene: RHAG as ready
Mendeliome v0.9121 RHAG Zornitza Stark Gene: rhag has been classified as Green List (High Evidence).
Mendeliome v0.9121 RHAG Zornitza Stark Phenotypes for gene: RHAG were changed from to Anaemia, haemolytic, Rh-null, regulator type MIM# 268150; Overhydrated hereditary stomatocytosis MIM#185000
Mendeliome v0.9120 RHAG Zornitza Stark Publications for gene: RHAG were set to
Mendeliome v0.9119 RHAG Zornitza Stark Mode of inheritance for gene: RHAG was changed from Unknown to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.9109 RHAG Danielle Ariti reviewed gene: RHAG: Rating: GREEN; Mode of pathogenicity: None; Publications: 30990901, 28470789, 4962358, 18931342, 21849667, 23406318; Phenotypes: Anaemia, haemolytic, Rh-null, regulator type MIM# 268150, Overhydrated hereditary stomatocytosis MIM#185000; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.8734 COLGALT1 Bryony Thompson gene: COLGALT1 was added
gene: COLGALT1 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: COLGALT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COLGALT1 were set to 30412317; 33709034; 31759980
Phenotypes for gene: COLGALT1 were set to Brain small vessel disease 3 MIM#618360
Review for gene: COLGALT1 was set to GREEN
Added comment: 3 unrelated cases with biallelic variants, and supporting functional assays. The main features of the cases were porencephalic cysts, leukoencephalopathy, lacunar infarcts, cerebral microbleeds/haemorrhages and calcifications. A null mouse model was embryonic lethal, but had defects in the vascular networks of the embryos.
Sources: Other
Mendeliome v0.7767 FGB Zornitza Stark changed review comment from: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both.

Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder. Well established gene-disease association.; to: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both.

Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder.

Well established gene-disease association.
Mendeliome v0.7750 F10 Zornitza Stark commented on gene: F10: Factor X deficiency shows variable phenotypic severity. Affected individuals can manifest prolonged nasal and mucosal haemorrhage, menorrhagia, haematuria, and occasionally haemarthrosis. More than 20 unrelated families reported.
Mendeliome v0.5344 JAM3 Zornitza Stark Phenotypes for gene: JAM3 were changed from to Hemorrhagic destruction of the brain, subependymal calcification, and cataracts, MIM# 613730
Mendeliome v0.5341 JAM3 Zornitza Stark reviewed gene: JAM3: Rating: GREEN; Mode of pathogenicity: None; Publications: 23255084, 21109224; Phenotypes: Hemorrhagic destruction of the brain, subependymal calcification, and cataracts, MIM# 613730; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.3617 ANO1 Zornitza Stark Phenotypes for gene: ANO1 were changed from Impaired intestinal peristalsis; dysmorphic features to Impaired intestinal peristalsis; haemorrhagic diarrhoea; dysmorphic features
Mendeliome v0.0 RHAG Zornitza Stark gene: RHAG was added
gene: RHAG was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: RHAG was set to Unknown