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| Ichthyosis and erythrokeratoderma v3.27 | DBR1 |
Achchuthan Shanmugasundram changed review comment from: Comment on list classification: As reviewed by Zornitza Stark, the same variant was identified in four different families and haplotype analysis suggests this to be a founder variant.; to: Comment on list classification: As reviewed by Zornitza Stark, the same variant was identified in four different families and haplotype analysis suggests this to be a founder variant. There is functional data available. This gene can only be rated amber with the current evidence. The 'founder-effect' tag is added to this gene. |
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| Ichthyosis and erythrokeratoderma v3.27 | DBR1 | Achchuthan Shanmugasundram Added comment: Comment on list classification: As reviewed by Zornitza Stark, the same variant was identified in four different families and haplotype analysis suggests this to be a founder variant. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v3.3 | DBR1 |
Zornitza Stark gene: DBR1 was added gene: DBR1 was added to Ichthyosis and erythrokeratoderma. Sources: Literature Mode of inheritance for gene: DBR1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DBR1 were set to 37656279 Phenotypes for gene: DBR1 were set to Ichthyosis (MONDO#0019269), DBR1-related Review for gene: DBR1 was set to AMBER Added comment: PMID: 37656279: - A homozygous missense as a founder recessive DBR1 variant in four consanguineous families. - Total of 7 affected children. WES done for one proband from each family. - Consistent features include prematurity, severe intrauterine growth deficiency, congenital ichthyosis-like presentation (collodion membrane, severe skin peeling and xerosis), and death before the first year of life. - RNA and protein studies using fibroblasts derived from a patient are supportive of pathogenicity: RNA-seq, rt-qPCR and western blotting, showing marked reduction of DBR1 level and intronic RNA lariat accumulation in the patient sample. - Haplotype analysis revealed that the four families all share a haplotype extending at least 2.27 Mb around the c.200A>G p.(Tyr67Cys) DBR1 founder variant. - Authors proposed this is a novel DBR1-related developmental disorder that is distinct from DBR1-related encephalitis susceptibility, and highlighted the apparent lack of correlation with the degree of DBR1 deficiency. Sources: Literature |
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| Ichthyosis and erythrokeratoderma v1.55 | STS | Ivone Leong Phenotypes for gene: STS were changed from Ichthyosis, X-linked, 308100 to Ichthyosis, X-linked, OMIM:308100 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v1.3 | ASPRV1 |
Zornitza Stark gene: ASPRV1 was added gene: ASPRV1 was added to Ichthyosis and erythrokeratoderma. Sources: Literature Mode of inheritance for gene: ASPRV1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ASPRV1 were set to 32516568 Phenotypes for gene: ASPRV1 were set to palmoplantar keratoderma; lamellar ichthyosis Review for gene: ASPRV1 was set to GREEN gene: ASPRV1 was marked as current diagnostic Added comment: -3 heterozygous missense variants identified across 4 unrelated kindreds -mutant ASPRV1 expressed in human keratinocytes suggests impaired filaggrin processing Sources: Literature |
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| Ichthyosis and erythrokeratoderma v1.3 | PERP |
Zornitza Stark gene: PERP was added gene: PERP was added to Ichthyosis and erythrokeratoderma. Sources: Literature Mode of inheritance for gene: PERP was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PERP were set to 31898316 Phenotypes for gene: PERP were set to Erythrokeratoderma, no OMIM # yet Review for gene: PERP was set to AMBER Added comment: One extended multiplex consanguineous family with Erythrokeratoderma (striking similarity to that observed in Perp −/− mice), and a novel homozygous variant (c.466G>A; p.Gly156Arg) in PERP that fully segregated with the phenotype. Functional analysis of patient‐ and control‐derived keratinocytes revealed a deleterious effect of the identified variant on the intracellular localization of PERP. A previous report showed that PERP mutation causes a dominant form of keratoderma but a single patient in that report with a homozygous variant in PERP suggests that recessive inheritance is also possible. Sources: Literature |
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| Ichthyosis and erythrokeratoderma v0.3 | STS |
Ellen McDonagh gene: STS was added gene: STS was added to Ichthyosis and erythrokeratoderma. Sources: Expert Review Green Mode of inheritance for gene: STS 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: STS were set to Ichthyosis, X-linked, 308100 |
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