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Familial non syndromic congenital heart disease v1.75 HYAL2 Arina Puzriakova Tag gene-checked tag was added to gene: HYAL2.
Familial non syndromic congenital heart disease v1.57 HYAL2 Eleanor Williams Classified gene: HYAL2 as Green List (high evidence)
Familial non syndromic congenital heart disease v1.57 HYAL2 Eleanor Williams Added comment: Comment on list classification: Promoting to green after further consultation with the Genomics England clinical team. 2 cases which both report a cardiac phenotype, and mouse model which also re-capitulates the cardiac phenotype, so should be rated green.
Familial non syndromic congenital heart disease v1.57 HYAL2 Eleanor Williams Gene: hyal2 has been classified as Green List (High Evidence).
Familial non syndromic congenital heart disease v1.56 HYAL2 Eleanor Williams Classified gene: HYAL2 as Amber List (moderate evidence)
Familial non syndromic congenital heart disease v1.56 HYAL2 Eleanor Williams Added comment: Comment on list classification: Promoting from red to amber. 2 cases reported with supporting data from mouse. Cardiac phenotype is not fully penetrant. Awaiting confirmation of further cases before promoting to green.
Familial non syndromic congenital heart disease v1.56 HYAL2 Eleanor Williams Gene: hyal2 has been classified as Amber List (Moderate Evidence).
Familial non syndromic congenital heart disease v1.55 HYAL2 Eleanor Williams changed review comment from: PMID: 28081210 (Muggenthaler et al 2017) report 2 unrelated consanguineous extended families (Amish and Arab) who have an orofacial clefting phenotype but cardiac anomalies are also reported. In pedigree 1 (Amish) 5/5 analysed individuals had cleft lip and palate. 3/5 had congenital cardiac malformations including left cor triatriatum and dilated coronary sinus consistent with persistent left superior vena cava. All had a homzogyous c.443A>G, p.K148R variant which segregated with the disorder in the pedigree. It was found in a heterozygous state at a frequency of 0.013 in the Amish population, but was not found in 1000 Genomes or ExAC databases. In pedigree 2 (Arab) 1/2 analysed individuals had cleft lip and palate and 1/2 had an abnormal mitral valve with accessory tissue. Both were found to have a homozygous c.749C>T; p.P250L variant following whole genome SNP mapping. This variant was found in 2 individuals in the ExAC database in heterozygous state. Transient expression of the patient variants in mouse embryonic fibroblasts showed a large decrease in protein levels compared to wild type. They report that valvular thickening and atrial dilatation are found in all Hyal2-/- mice (PMID: 23172227) and that Cor triatriatum sinister has been detected in 50% of Hyal2-/- mice (PMID: 26515055).
Sources: Literature; to: PMID: 28081210 (Muggenthaler et al 2017) report 2 unrelated consanguineous extended families (Amish and Arab) who have an orofacial clefting phenotype with cardiac anomalies are also reported.

In pedigree 1 (Amish) 5/5 analysed individuals had cleft lip and palate. 3/5 had congenital cardiac malformations including left cor triatriatum and dilated coronary sinus consistent with persistent left superior vena cava. All had a homzogyous c.443A>G, p.K148R variant which segregated with the disorder in the pedigree. It was found in a heterozygous state at a frequency of 0.013 in the Amish population, but was not found in 1000 Genomes or ExAC databases.

In pedigree 2 (Arab) 1/2 analysed individuals had cleft lip and palate and 1/2 had an abnormal mitral valve with accessory tissue. Both were found to have a homozygous c.749C>T; p.P250L variant following whole genome SNP mapping. This variant was found in 2 individuals in the ExAC database in heterozygous state. Transient expression of the patient variants in mouse embryonic fibroblasts showed a large decrease in protein levels compared to wild type.

They report that valvular thickening and atrial dilatation are found in all Hyal2-/- mice (PMID: 23172227) and that Cor triatriatum sinister has been detected in 50% of Hyal2-/- mice (PMID: 26515055).
Sources: Literature
Familial non syndromic congenital heart disease v1.55 HYAL2 Eleanor Williams gene: HYAL2 was added
gene: HYAL2 was added to Familial non syndromic congenital heart disease. Sources: Literature
Mode of inheritance for gene: HYAL2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HYAL2 were set to 28081210; 23172227; 26515055
Phenotypes for gene: HYAL2 were set to cor triatriatum; congenital cardiac malformations
Review for gene: HYAL2 was set to AMBER
Added comment: PMID: 28081210 (Muggenthaler et al 2017) report 2 unrelated consanguineous extended families (Amish and Arab) who have an orofacial clefting phenotype but cardiac anomalies are also reported. In pedigree 1 (Amish) 5/5 analysed individuals had cleft lip and palate. 3/5 had congenital cardiac malformations including left cor triatriatum and dilated coronary sinus consistent with persistent left superior vena cava. All had a homzogyous c.443A>G, p.K148R variant which segregated with the disorder in the pedigree. It was found in a heterozygous state at a frequency of 0.013 in the Amish population, but was not found in 1000 Genomes or ExAC databases. In pedigree 2 (Arab) 1/2 analysed individuals had cleft lip and palate and 1/2 had an abnormal mitral valve with accessory tissue. Both were found to have a homozygous c.749C>T; p.P250L variant following whole genome SNP mapping. This variant was found in 2 individuals in the ExAC database in heterozygous state. Transient expression of the patient variants in mouse embryonic fibroblasts showed a large decrease in protein levels compared to wild type. They report that valvular thickening and atrial dilatation are found in all Hyal2-/- mice (PMID: 23172227) and that Cor triatriatum sinister has been detected in 50% of Hyal2-/- mice (PMID: 26515055).
Sources: Literature