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Retinal disorders v6.15 PQLC2 Arina Puzriakova Tag gene-checked tag was added to gene: PQLC2.
Retinal disorders v6.7 PQLC2 Sarah Leigh Tag Q2_24_promote_green was removed from gene: PQLC2.
Retinal disorders v6.7 PQLC2 Eleanor Williams reviewed gene: PQLC2: Rating: GREEN; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Retinal disorders v6.6 PQLC2 Sarah Leigh Source NHS GMS was added to PQLC2.
Source Expert Review Green was added to PQLC2.
Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Retinal disorders v5.6 PQLC2 Achchuthan Shanmugasundram Classified gene: PQLC2 as Amber List (moderate evidence)
Retinal disorders v5.6 PQLC2 Achchuthan Shanmugasundram Added comment: Comment on list classification: There are six unrelated families/ cases reported with biallelic SLC66A1 variants and retinal disorders. Hence, this gene should be promoted to green rating in the next GMS review.
Retinal disorders v5.6 PQLC2 Achchuthan Shanmugasundram Gene: pqlc2 has been classified as Amber List (Moderate Evidence).
Retinal disorders v5.5 PQLC2 Achchuthan Shanmugasundram Tag Q2_24_promote_green tag was added to gene: PQLC2.
Retinal disorders v5.5 PQLC2 Achchuthan Shanmugasundram commented on gene: PQLC2: HGNC Gene Symbol: SLC66A1. Hence, 'new-gene-name' tag added.
Retinal disorders v5.5 PQLC2 Achchuthan Shanmugasundram Tag new-gene-name tag was added to gene: PQLC2.
Retinal disorders v5.5 PQLC2 Achchuthan Shanmugasundram gene: PQLC2 was added
gene: PQLC2 was added to Retinal disorders. Sources: Literature
Mode of inheritance for gene: PQLC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PQLC2 were set to 35486108
Phenotypes for gene: PQLC2 were set to Retinitis pigmentosa, MONDO:0019200
Review for gene: PQLC2 was set to GREEN
Added comment: PMID:35486108 reported whole-exome sequencing with targeted analysis of SLC genes in 913 cases from 785 families with inherited retinal dystrophy. This identified 2 different homozygous variants in SLC66A1 in three individuals from two families with adult-onset retinal dystrophy.

Olinger et al. (2024) (https://www.sciencedirect.com/science/article/pii/S2949774424009804) reported CNV analysis of trio and non-trio WGS data from Genomics England 100K genomes project. This identified homozygous 21kb deletion spanning nearly entire SLC66A1 gene in 2 siblings with adult-onset rod-cone dystrophy, while parents are heterozygous carriers. Review of cohort data then identified homozygous loss-of-function variants (1 nonsense, 2 frameshift) in another 3 unrelated individuals with rod-cone dystrophy.

This gene has not yet been associated with any relevant phenotypes either in OMIM or in Gene2Phenotype.
Sources: Literature