Homozygous Missense Variation in Causes Prenatal-Onset Severe Neurodegeneration
Overview
Affiliations
The patatin-like protein family plays an important role in various biological functions including lipid homeostasis, cellular growth, and signaling. Conserved across species, the patatin domain is shared by all 9 members of the PNPLA family without redundancy in the coding sequences. The defective function of , , and are known to cause mitochondrial-related neurodegeneration. Recently, has been associated with mitochondrial myopathy and poor weight gain with lactic acidosis in 3 unrelated families. Using whole-exome sequencing, we identified a homozygous novel missense variation c.1874A>G in the patatin domain of . The patient had prenatal-onset severe and progressive neurodegeneration with mortality in infancy.
Chen B, Zhang C, Yuan Y, Wang Z, Cui T, Dong G J Neurol. 2024; 272(1):78.
PMID: 39680195 DOI: 10.1007/s00415-024-12838-8.
Genetic links between ovarian ageing, cancer risk and de novo mutation rates.
Stankovic S, Shekari S, Huang Q, Gardner E, Ivarsdottir E, Owens N Nature. 2024; 633(8030):608-614.
PMID: 39261734 PMC: 11410666. DOI: 10.1038/s41586-024-07931-x.
Biallelic null variants in PNPLA8 cause microcephaly by reducing the number of basal radial glia.
Nakamura Y, Shimada I, Maroofian R, Falabella M, Zaki M, Fujimoto M Brain. 2024; 147(11):3949-3967.
PMID: 39082157 PMC: 11531855. DOI: 10.1093/brain/awae185.
Mitochondrial membrane synthesis, remodelling and cellular trafficking.
Messina M, Vaz F, Rahman S J Inherit Metab Dis. 2024; 48(1):e12766.
PMID: 38872485 PMC: 11730691. DOI: 10.1002/jimd.12766.
Cerebellar Ataxia and Peripheral Neuropathy in a Family With -Associated Disease.
Burnyte B, Vilimiene R, Grigalioniene K, Adomaitiene I, Utkus A Neurol Genet. 2023; 9(3):e200068.
PMID: 37057294 PMC: 10088641. DOI: 10.1212/NXG.0000000000200068.