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| Mackenzie's Mission_Reproductive Carrier Screening v0.108 | ALG2 |
Crystle Lee changed review comment from: One additional variant reported in association with CDG on top of the previous patients reported with CDG/congenital myasthenia PMID: 33644825: R251L reported in 3 probands from 2 families with CDG (same patients in PMID: 30397276) Association with myasthenia: Two families reported, same, likely founder variant. Association with CDG: one individual with multisystemic disorder with ID, seizures, coloboma of the iris, hypomyelination, hepatomegaly, and coagulation abnormalities reported in PMID 12684507. Fibroblasts showed severely reduced enzymatic activity.; to: One additional variant reported in association with CDG on top of the previously reviewed patients reported with CDG/congenital myasthenia PMID: 33644825: R251L reported in 3 probands from 2 families with CDG (same patients in PMID: 30397276) Association with myasthenia: Two families reported, same, likely founder variant. Association with CDG: one individual with multisystemic disorder with ID, seizures, coloboma of the iris, hypomyelination, hepatomegaly, and coagulation abnormalities reported in PMID 12684507. Fibroblasts showed severely reduced enzymatic activity. |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.47 | MBTPS1 |
Sarah Righetti gene: MBTPS1 was added gene: MBTPS1 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review,Literature Mode of inheritance for gene: MBTPS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MBTPS1 were set to 32857899; 32420688; 30046013 Phenotypes for gene: MBTPS1 were set to ?Spondyloepiphyseal dysplasia, Kondo-Fu type, MIM #618392 Review for gene: MBTPS1 was set to AMBER Added comment: Three unrelated individuals reported with bi-allelic variants in this gene and a skeletal dysplasia, one described with SRS-like features. Elevated blood lysosomal enzymes are also a feature. Sources: Expert Review, Literature |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.47 | UPB1 | Sarah Righetti changed review comment from: Insufficient evidence that abolition of enzymatic activity is disease-causing. LOF/pathogenic missense alleles at high frequency in general population.In particular, the most frequently reported variant, p.Arg326Gln, is very common among East Asians, with a carrier frequency of 1 in 20 and 1 in 907 being homozygous for the variant. Moreover, published reports (PMID: 24526388) include multiple individuals with mild or no phenotypes. ; to: Insufficient evidence that abolition of enzymatic activity is disease-causing. LOF/pathogenic missense alleles at high frequency in general population.In particular, the most frequently reported variant, p.Arg326Gln, is very common among East Asians, with a carrier frequency of 1 in 20 and 1 in 907 being homozygous for the variant. Moreover, published reports (PMID: 24526388) include multiple individuals with mild or no phenotypes. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mackenzie's Mission_Reproductive Carrier Screening v0.47 | UPB1 | Sarah Righetti changed review comment from: Insufficient evidence that abolition of enzymatic activity is disease-causing. LOF/pathogenic missense alleles at high frequency in general population.; to: Insufficient evidence that abolition of enzymatic activity is disease-causing. LOF/pathogenic missense alleles at high frequency in general population.In particular, the most frequently reported variant, p.Arg326Gln, is very common among East Asians, with a carrier frequency of 1 in 20 and 1 in 907 being homozygous for the variant. Moreover, published reports (PMID: 24526388) include multiple individuals with mild or no phenotypes. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mackenzie's Mission_Reproductive Carrier Screening v0.44 | ERBB3 |
Sarah Righetti changed review comment from: PMID 17701904: Lod score >9 in large Israeli family, also a second unrelated isolated case. Both families: hom 8bp insertion. Phenotype similar to that of null mice. PMID 31752936: Compound het variants identified in 24mo Chinese female patient with a novel multisystem syndrome disorder without congenital contracture PMID 28454995: Hom missense in Saudi Arabian individual with lethal congenital contractural syndrome, additional features: dysmorphic features, knee dislocation, bilaterial hip dislocation; to: PMID 17701904: Lod score >9 in large Israeli family, also a second unrelated isolated case. Both families: hom splice variant in intron 10 (IVS10-8A→G) causing fs & premature protein truncation. Fnal studies confirm aberrant splicing. Phenotype similar to that of null mice. PMID 31752936: Compound het variants identified in 24mo Chinese female patient with a novel multisystem syndrome disorder without congenital contracture PMID 28454995: Hom missense in Saudi Arabian individual with lethal congenital contractural syndrome, additional features: dysmorphic features, knee dislocation, bilaterial hip dislocation |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.32 | SPEG |
Zornitza Stark gene: SPEG was added gene: SPEG was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review Mode of inheritance for gene: SPEG was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SPEG were set to 25087613; 31625632; 30412272; 30157964; 29614691; 29474540; 28624463; 26578207; 25087613 Phenotypes for gene: SPEG were set to Centronuclear myopathy 5, MIM# 615959 Review for gene: SPEG was set to GREEN Added comment: Centronuclear myopathy-5 is an autosomal recessive congenital myopathy characterized by severe neonatal hypotonia with respiratory insufficiency and difficulty feeding. Some individuals die in infancy, and some develop dilated cardiomyopathy. More than 10 unrelated families reported, functional data. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.31 | ACADM |
Sarah Righetti changed review comment from: MUTATIONAL AND CLINICAL SPECTRUM: Most common variant is NM_000016.6:c.985A>G p.K329E (p.K304E in mature protein) seen hom/chet in patients with classical MCAD deficiency, also seen chet in asymptomatic siblings. Beware existence of pseudodeficiency alleles (e.g. chet c.199T>C p.Y67H) where individuals have reduced enzymatic activity and so are positive on NBS but do not usually have clinical symptoms. TREATMENT: Covered on NBS, generally very successful treatment with mainly dietary management. However 3 neonates in past year at WCH who have had cardiac/respiratory arrests before 48 hours (i.e. prior to NBS results being available). There are a number of babies who have died or had brain damage as a result of hypoglycemia prior to the test being taken. Summary: GREEN; meets MM panel inclusion criteria where early diagnosis can lead to more effective treatment. Counsel accordingly. Sources: Expert Review; to: Mutational and clinical spectrum: Most common variant is NM_000016.6:c.985A>G p.K329E (p.K304E in mature protein) seen hom/chet in patients with classical MCAD deficiency, also seen chet in asymptomatic siblings. Beware existence of pseudodeficiency alleles (e.g. chet c.199T>C p.Y67H) where individuals have reduced enzymatic activity and so are positive on NBS but do not usually have clinical symptoms. Treatment: Covered on NBS, generally very successful treatment with mainly dietary management. However 3 neonates in past year at WCH who have had cardiac/respiratory arrests before 48 hours (i.e. prior to NBS results being available). There are a number of babies who have died or had brain damage as a result of hypoglycemia prior to the test being taken. Summary: GREEN; meets MM panel inclusion criteria where early diagnosis can lead to more effective treatment. Counsel accordingly. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.28 | ACADM |
Sarah Righetti gene: ACADM was added gene: ACADM was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review Mode of inheritance for gene: ACADM was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: ACADM were set to Acyl-CoA dehydrogenase, medium chain, deficiency of, MIM #201450 Review for gene: ACADM was set to GREEN Added comment: MUTATIONAL AND CLINICAL SPECTRUM: Most common variant is NM_000016.6:c.985A>G p.K329E (p.K304E in mature protein) seen hom/chet in patients with classical MCAD deficiency, also seen chet in asymptomatic siblings. Beware existence of pseudodeficiency alleles (e.g. chet c.199T>C p.Y67H) where individuals have reduced enzymatic activity and so are positive on NBS but do not usually have clinical symptoms. TREATMENT: Covered on NBS, generally very successful treatment with mainly dietary management. However 3 neonates in past year at WCH who have had cardiac/respiratory arrests before 48 hours (i.e. prior to NBS results being available). There are a number of babies who have died or had brain damage as a result of hypoglycemia prior to the test being taken. Summary: GREEN; meets MM panel inclusion criteria where early diagnosis can lead to more effective treatment. Counsel accordingly. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.27 | TRAC | Sarah Righetti changed review comment from: Two individuals from two unrelated consanguinous families with same homozygous truncating variant; to: Two unrelated individuals from two consanguinous families of Pakistani origin with same homozygous truncating variant | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mackenzie's Mission_Reproductive Carrier Screening v0.23 | ISCA1 |
Zornitza Stark gene: ISCA1 was added gene: ISCA1 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review Mode of inheritance for gene: ISCA1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ISCA1 were set to 28356563; 32092383; 31016283; 30113620; 30105122 Phenotypes for gene: ISCA1 were set to Multiple mitochondrial dysfunctions syndrome 5, MIM# 617613 Review for gene: ISCA1 was set to GREEN Added comment: Multiple unrelated families reported. Severe disorder characterised by progressive neurologic deterioration beginning in early infancy. Affected individuals have essentially no psychomotor development and have early-onset seizures with neurologic decline and spasticity. Brain imaging shows severe leukodystrophy with evidence of dys- or delayed myelination. Rat model results in early lethality. Founder variant c.259G > A, p.(Glu87Lys) reported in Indian families. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.22 | ADPRHL2 |
Zornitza Stark gene: ADPRHL2 was added gene: ADPRHL2 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review new gene name tags were added to gene: ADPRHL2. Mode of inheritance for gene: ADPRHL2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ADPRHL2 were set to 30100084; 30401461 Phenotypes for gene: ADPRHL2 were set to Neurodegeneration, childhood-onset, stress-induced, with variable ataxia and seizures, MIM#618170 Review for gene: ADPRHL2 was set to GREEN Added comment: Fourteen unrelated families reported with stress-induced childhood-onset neurodegeneration with variable ataxia and seizures (CONDSIAS), an autosomal recessive neurodegenerative disorder with onset in the first years of life following normal early development. The disorder is characterised by cyclic episodic deterioration in response to stress, such as infection or febrile illness. The severity is highly variable: some individuals develop seizures early in life that are associated with loss of developmental milestones and early sudden death in childhood, whereas others present at a later age with muscle weakness, gait ataxia, impaired speech, more subtle clinical deterioration, and cognitive decline. Neurologic involvement includes gait ataxia, cerebellar signs associated with cerebellar atrophy, generalized brain atrophy, impaired intellectual development, hearing loss, and peripheral neuropathy. New HGNC approved name is ADPRS. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.21 | GTPBP2 |
Zornitza Stark gene: GTPBP2 was added gene: GTPBP2 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review Mode of inheritance for gene: GTPBP2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: GTPBP2 were set to 26675814; 29449720; 30790272 Phenotypes for gene: GTPBP2 were set to Jaberi-Elahi syndrome, MIM#617988 Review for gene: GTPBP2 was set to GREEN Added comment: Nine individuals from six unrelated families with bi-allelic variants in this gene causing a neuro-ectodermal syndrome. Key features include prenatal onset microcephaly, tone abnormalities, and movement disorders, epilepsy, dysmorphic features, retinal dysfunction, ectodermal dysplasia, and brain iron accumulation. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.20 | FITM2 |
Zornitza Stark gene: FITM2 was added gene: FITM2 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert list Mode of inheritance for gene: FITM2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FITM2 were set to 28067622; 30214770; 30288795 Phenotypes for gene: FITM2 were set to Siddiqi syndrome MIM#618635 Review for gene: FITM2 was set to GREEN Added comment: Autosomal recessive condition characterised by global developmental delay, early-onset progressive sensorineural hearing impairment, regression of motor skills, dystonia, poor overall growth, and low body mass index (BMI). More variable features may include ichthyosis-like skin abnormalities or sensory neuropathy. 7 individuals from 3 unrelated families reported, supportive Drosophila model. Sources: Expert list |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.19 | YIF1B |
Zornitza Stark gene: YIF1B was added gene: YIF1B was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review Mode of inheritance for gene: YIF1B was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: YIF1B were set to 32006098; 26077767 Phenotypes for gene: YIF1B were set to Central hypotonia; Failure to thrive; Microcephaly; Global developmental delay; Intellectual disability; Seizures; Spasticity; Abnormality of movement Review for gene: YIF1B was set to GREEN Added comment: 6 individuals (from 5 families) with biallelic YIF1B truncating variants reported. Presenting features: hypotonia, failure to thrive, microcephaly (5/6), severe global DD and ID as well as features suggestive of a motor disorder (dystonia/spasticity/dyskinesia). Seizures were reported in 2 unrelated individuals (2/6). MRI abnormalities were observed in some with thin CC being a feature in 3. Affected individuals were found to be homozygous for truncating variants (4/5 families being consanguineous). The following 3 variants were identified (NM_001039672.2) : c.186dupT or p.Ala64fs / c.360_361insACAT or p.Gly121fs / c.598G>T or p.Glu200*. Yif1B KO mice demonstrate a disorganized Golgi architecture in pyramidal hippocampal neurons (Alterio et al 2015 - PMID: 26077767). Functional/network analysis of genes co-regulated with YIF1B based on available RNAseq data, suggest enrichement in in genes important for nervous system development and function. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.18 | DYNC1I2 |
Zornitza Stark gene: DYNC1I2 was added gene: DYNC1I2 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review Mode of inheritance for gene: DYNC1I2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DYNC1I2 were set to 31079899 Phenotypes for gene: DYNC1I2 were set to Neurodevelopmental disorder with microcephaly and structural brain anomalies , MIM#618492 Review for gene: DYNC1I2 was set to GREEN Added comment: Five individuals from three unrelated families reported. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.14 | TP53RK |
Zornitza Stark gene: TP53RK was added gene: TP53RK was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert Review Mode of inheritance for gene: TP53RK was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TP53RK were set to 28805828; 30053862 Phenotypes for gene: TP53RK were set to Galloway-Mowat syndrome 4, MIM# 617730 Review for gene: TP53RK was set to GREEN Added comment: At least 4 unrelated families reported with renal-neurologic disease characterised by early-onset nephrotic syndrome associated with microcephaly, gyral abnormalities, and delayed psychomotor development. Most individuals have dysmorphic facial features, often including hypertelorism, ear abnormalities, and micrognathia. Other features, such as arachnodactyly and visual impairment, are more variable. Sources: Expert Review |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.12 | TMEM94 |
Zornitza Stark gene: TMEM94 was added gene: TMEM94 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert list Mode of inheritance for gene: TMEM94 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TMEM94 were set to 30526868 Phenotypes for gene: TMEM94 were set to Intellectual developmental disorder with cardiac defects and dysmorphic facies, MIM#618316 Review for gene: TMEM94 was set to GREEN Added comment: 10 individuals from 6 unrelated families reported. Sources: Expert list |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.10 | PUS7 |
Zornitza Stark gene: PUS7 was added gene: PUS7 was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Expert list Mode of inheritance for gene: PUS7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PUS7 were set to 30526862; 30778726; 31583274 Phenotypes for gene: PUS7 were set to Intellectual developmental disorder with abnormal behavior, microcephaly, and short stature; OMIM #618342 Review for gene: PUS7 was set to GREEN Added comment: 11 individuals from 6 families with ID, speech delay, short stature, microcephaly, and aggressive behavior, with homozygous PUS7 mutations, which segregated with disease. Sources: Expert list |
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| Mackenzie's Mission_Reproductive Carrier Screening v0.0 | IDUA |
Zornitza Stark gene: IDUA was added gene: IDUA was added to Mackenzie's Mission_Reproductive Carrier Screening. Sources: Mackenzie's Mission,Expert Review Green Mode of inheritance for gene: IDUA was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: IDUA were set to Mucopolysaccharidosis Ih, 607014 (3) |
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