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Mendeliome v1.1909 KCNJ10 Zornitza Stark Phenotypes for gene: KCNJ10 were changed from SESAME syndrome, MIM# 612780 to SESAME syndrome, MIM# 612780; Paroxysmal dyskinesia, MONDO:0015427, KCNJ10-related
Mendeliome v1.1906 KCNJ10 Zornitza Stark edited their review of gene: KCNJ10: Added comment: PMID 38979912: 11 individuals from 8 unrelated families reported with variants in this gene and paroxysmal dyskinesia. Notably one was the parent of a child with recessive SeSAME syndrome (established gene-disease association). Patch-clamp recordings in HEK293T cells revealed apparent reductions in K+ currents of the patient-derived variants, indicating a loss-of-function. In Drosophila, milder hyperexcitability phenotypes were observed in heterozygous Irk2 knock-in flies compared to homozygotes, supporting haploinsufficiency as the mechanism for the detected heterozygous variants. Electrophysiological recordings showed that excitatory neurons in Irk2 haploinsufficiency flies exhibited increased excitability, and glia-specific complementation with human Kir4.1 rescued the Irk2 mutant phenotypes.; Changed publications: 19289823, 19420365, 21849804, 11466414, 38979912; Changed phenotypes: SESAME syndrome, MIM# 612780, Paroxysmal dyskinesia, MONDO:0015427, KCNJ10-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
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 v1.780 ESAM Seb Lunke Marked gene: ESAM as ready
Mendeliome v1.780 ESAM Seb Lunke Gene: esam has been classified as Green List (High Evidence).
Mendeliome v1.780 ESAM Seb Lunke Classified gene: ESAM as Green List (high evidence)
Mendeliome v1.780 ESAM Seb Lunke Gene: esam has been classified as Green List (High Evidence).
Mendeliome v1.775 ESAM Chern Lim gene: ESAM was added
gene: ESAM was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ESAM was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ESAM were set to 36996813
Phenotypes for gene: ESAM were set to Neurodevelopmental disorder (MONDO#0700092), ESAM-related
Review for gene: ESAM was set to GREEN
gene: ESAM was marked as current diagnostic
Added comment: PMID 36996813
- Thirteen affected individuals, including four fetuses, from eight unrelated families, with homozygous loss-of-function-type variants in ESAM – 2 of the variants are frameshifts, 1x nonsense, 1x canonical splice.
- Affected individuals have profound global developmental delay/unspecified intellectual disability, epilepsy, absent or severely delayed speech, varying degrees of spasticity, ventriculomegaly, and ICH/cerebral calcifications, the latter being also observed in the fetuses.
- One of the frameshift variant c.115del (p.Arg39Glyfs*33), was detected in six individuals from four unrelated families from the same geographic region in Turkey (southeastern Anatolia), suggesting a founder effect.
- The c.451+1G>A variant was detected in three individuals from two independent families with the same ethnic origin (Arab Bedouin)
Sources: Literature
Mendeliome v0.11331 KCNJ10 Zornitza Stark Phenotypes for gene: KCNJ10 were changed from to SESAME syndrome, MIM# 612780
Mendeliome v0.11328 KCNJ10 Zornitza Stark reviewed gene: KCNJ10: Rating: GREEN; Mode of pathogenicity: None; Publications: 19289823, 19420365, 21849804, 11466414; Phenotypes: SESAME syndrome, MIM# 612780; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal