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White matter disorders and cerebral calcification - narrow panel

Gene: PI4KA

Green List (high evidence)

PI4KA (phosphatidylinositol 4-kinase alpha)
EnsemblGeneIds (GRCh38): ENSG00000241973
EnsemblGeneIds (GRCh37): ENSG00000241973
OMIM: 600286, Gene2Phenotype
PI4KA is in 12 panels

2 reviews

Sarah Leigh (Genomics England Curator)

Green List (high evidence)

The rating of this gene has been updated to Green following NHS Genomic Medicine Service approval.
Created: 30 Jan 2023, 4:26 p.m. | Last Modified: 30 Jan 2023, 4:26 p.m.
Panel Version: 2.9

Ivone Leong (Genomics England Curator)

Green List (high evidence)

This gene is associated with a relevant phenotype in OMIM and Gene2Phenotype.

PMID: 25855803. From OMIM: "3 fetuses were all diagnosed in utero with multiple congenital anomalies resulting in the termination of pregnancy between 16 and 34 weeks' gestation. All fetuses had bilateral perisylvian polymicrogyria and cerebellar hypoplasia or dysplasia. One had a small pons. Additional features included severe talipes equinovarus, externally rotated hips, and variable contractures of the limbs or fingers."

PMID:34415322. 10 patients from 10 unrelated families with biallelic varaints in PI4KA. Patients showed a spectrum of severe global neurodevelopmental delay (8/10 moderate to severe ID), hypomyelination, cerebellar hyoplasia (1/10), cerebellar atrophy (5/10), bilateral perisylvian polymicrogyria (1/10), immunological problems (hypogammaglobulinaemia, lymphopaenia, and autoimmune neutorpaenia - 4/10), bowl dysfunction (4/10). Age of onset ranged from newborn to 17 years.

PMID: 34415310. 7 unrelated families. Family 1: Amish. Severe extensive multiple intestinal atresia, IBD and combined immunodeficiency (2/4). Families 3 - 8 all have 1 affected individual, (Turkish, Indian, German and Italian). Global developmental delay (all), ID (severe to mild), cerebellar and/or brainstem anomalies (3/6), spasticity (all), immature gyral pattern (1/6), leukodystrophy (6/6), multiple intestinal atresia (0/6), IBD (3/6), combined immunodeficiency (2/6). Early age of onset.
Created: 1 Sep 2021, 1:47 p.m. | Last Modified: 1 Sep 2021, 1:47 p.m.
Panel Version: 2.230

Publications

History Filter Activity

30 Jan 2023, Gel status: 3

Removed Tag

Sarah Leigh (Genomics England Curator)

Tag Q3_21_rating was removed from gene: PI4KA.

30 Jan 2023, Gel status: 3

Added New Source, Added New Source, Status Update

Sarah Leigh (Genomics England Curator)

Source NHS GMS was added to PI4KA. Source Expert Review Green was added to PI4KA. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)

1 Sep 2021, Gel status: 2

Created, Added New Source, Added Tag, Set mode of inheritance, Set publications, Set Phenotypes

Ivone Leong (Genomics England Curator)

gene: PI4KA was added gene: PI4KA was added to White matter disorders and cerebral calcification - narrow panel. Sources: Expert Review Amber Q3_21_rating tags were added to gene: PI4KA. Mode of inheritance for gene: PI4KA was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PI4KA were set to 25855803; 34415322; 34415310 Phenotypes for gene: PI4KA were set to Polymicrogyria, perisylvian, with cerebellar hypoplasia and arthrogryposis, OMIM:616531