Activity

Filter

Cancel
Date Panel Item Activity
6 actions
Intellectual disability syndromic and non-syndromic v0.5706 PI4K2A Zornitza Stark Phenotypes for gene: PI4K2A were changed from complex neurodevelopmental disorder with motor features, PI4K2A-related, MONDO:0100516 to Neurodevelopmental disorder with hyperkinetic movements, seizures and structural brain abnormalities, MIM# 620732
Intellectual disability syndromic and non-syndromic v0.5014 PI4K2A Seb Lunke Marked gene: PI4K2A as ready
Intellectual disability syndromic and non-syndromic v0.5014 PI4K2A Seb Lunke Gene: pi4k2a has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.5014 PI4K2A Seb Lunke Classified gene: PI4K2A as Green List (high evidence)
Intellectual disability syndromic and non-syndromic v0.5014 PI4K2A Seb Lunke Gene: pi4k2a has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.5013 PI4K2A Seb Lunke gene: PI4K2A was added
gene: PI4K2A was added to Intellectual disability syndromic and non-syndromic. Sources: Literature
Mode of inheritance for gene: PI4K2A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PI4K2A were set to 30564627; 35880319; 19581584
Phenotypes for gene: PI4K2A were set to complex neurodevelopmental disorder with motor features, PI4K2A-related, MONDO:0100516
Review for gene: PI4K2A was set to GREEN
Added comment: Two reportedly unrelated, consanguine families with the same hom stop mutation in PI4K2A, p.(Arg309Ter). Probands with seizures, developmental delay, hypotonia/dystonia, myoclonus and developmental delay. MRI showed extensive brain abnormalities including dysgenesis of the corpus callosum, ventriculomegaly, and white matter volume loss.

Functional studies showed cellular mislocalisation of the Arg309Ter truncated protein construct compared to WT and an missense control.

An earlier paper from 2018 described two additional probands with a different stop mutation, p.(Ser22Ter), and overlapping phenotypic presentation.

in 2011, a Pi4k2a knock-out mouse model was described. "Knock-out animals initially appeared normal but later develop a progressive neurological dis-ease characterized by tremor, limb weakness, urinary incontinence and premature mortality. Histological analysis revealed massive axonal degeneration in the spinal cord in the descending corticospinal tracts."
Sources: Literature