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Mendeliome v1.2396 HEPHL1 Sangavi Sivagnanasundram changed review comment from: Classified as LIMITED by General Inborn Errors of Metabolism GCEP on 28/03/2025 - https://search.clinicalgenome.org/CCID:008755

Reported in a proband with chet variant. The variant was shown to affect ferroxidase activity result in abnormal hair phenotype. ?inborn error of iron metabolism; to: Classified as LIMITED by General Inborn Errors of Metabolism GCEP on 28/03/2025 - https://search.clinicalgenome.org/CCID:008755

Reported in a proband with biallelic variant. The variant was shown to affect ferroxidase activity result in abnormal hair phenotype. ?inborn error of iron metabolism
Mendeliome v1.2396 HEPHL1 Sangavi Sivagnanasundram changed review comment from: Classified as LIMITED by General Inborn Errors of Metabolism GCEP on 28/03/2025 - https://search.clinicalgenome.org/CCID:008755

Reported in a proband with chet variants. The variant was shown to affect ferroxidase activity result in abnormal hair phenotype. ?inborn error of iron metabolism; to: Classified as LIMITED by General Inborn Errors of Metabolism GCEP on 28/03/2025 - https://search.clinicalgenome.org/CCID:008755

Reported in a proband with chet variant. The variant was shown to affect ferroxidase activity result in abnormal hair phenotype. ?inborn error of iron metabolism
Mendeliome v1.2396 HEPHL1 Sangavi Sivagnanasundram reviewed gene: HEPHL1: Rating: RED; Mode of pathogenicity: None; Publications: 31125343; Phenotypes: pili torti-developmental delay-neurological abnormalities syndrome MONDO:0009871; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.1344 HEPHL1 Ain Roesley Marked gene: HEPHL1 as ready
Mendeliome v1.1344 HEPHL1 Ain Roesley Gene: hephl1 has been classified as Red List (Low Evidence).
Mendeliome v1.1344 HEPHL1 Ain Roesley Classified gene: HEPHL1 as Red List (low evidence)
Mendeliome v1.1344 HEPHL1 Ain Roesley Gene: hephl1 has been classified as Red List (Low Evidence).
Mendeliome v1.1335 HEPHL1 Naomi Baker gene: HEPHL1 was added
gene: HEPHL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HEPHL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HEPHL1 were set to PMID: 31125343; 31293895
Phenotypes for gene: HEPHL1 were set to Abnormal hair, joint laxity, and developmental delay (MIM#261990)
Review for gene: HEPHL1 was set to RED
Added comment: PMID: 31125343 - Single patient reported with biallelic variants (missense and splice) that presented with abnormal hair and early cognitive delays. Authors also created a knockout mouse, with homozygotes having short, curled whiskers while heterozygotes did not have this phenotype.

PMID: 31293895 - Report of curly whiskers (cw) mouse model that has a spontaneous variant (frame shifting single base insertion) in Hephl1.
Sources: Literature