Hereditary neuropathy or pain disorder
Gene: PDXK
Comment on list classification: There is sufficient evidence available (three unrelated cases and functional studies) for the promotion of this gene to green rating in the next GMS update.Created: 11 Apr 2024, 9:24 p.m. | Last Modified: 11 Apr 2024, 9:24 p.m.
Panel Version: 3.87
PMID:31187503 - Five individuals from two unrelated families were reported with biallelic PDXK variants and with primary axonal polyneuropathy and optic atrophy. This association was also supported by results from cell-based functional assays. The biochemical profile can be rescued with PLP supplementation associated with clinical improvement.
PMID:32522499 - Two affected siblings with a novel biallelic missense PDXK variant were reported with a similar phenotype as reported in PMID:31187503 with earlier onset. Functional analysis showed that this variant leads to almost complete loss of PDXK enzymatic activity and low PLP levels.
This gene has been associated with relevant phenotypes in OMIM (MIM #618511), but not yet in Gene2Phenotype.
Sources: LiteratureCreated: 11 Apr 2024, 8:22 p.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Neuropathy, hereditary motor and sensory, type VIC, with optic atrophy, OMIM:618511
Publications
Gene: pdxk has been classified as Amber List (Moderate Evidence).
Tag Q2_24_promote_green tag was added to gene: PDXK.
gene: PDXK was added gene: PDXK was added to Hereditary neuropathy or pain disorder. Sources: Literature Mode of inheritance for gene: PDXK was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PDXK were set to 31187503; 32522499 Phenotypes for gene: PDXK were set to Neuropathy, hereditary motor and sensory, type VIC, with optic atrophy, OMIM:618511 Review for gene: PDXK was set to GREEN