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Congenital hypothyroidism v0.101 GBP1 Chirag Patel Marked gene: GBP1 as ready
Congenital hypothyroidism v0.101 GBP1 Chirag Patel Gene: gbp1 has been classified as Amber List (Moderate Evidence).
Congenital hypothyroidism v0.101 GBP1 Chirag Patel reviewed gene: GBP1: Rating: AMBER; Mode of pathogenicity: None; Publications: 34194003; Phenotypes: Congenital hypothyroidism, MONDO:0018612; Mode of inheritance: Unknown
Congenital hypothyroidism v0.101 GBP1 Chirag Patel Deleted their review
Congenital hypothyroidism v0.101 GBP1 Chirag Patel Deleted their comment
Congenital hypothyroidism v0.101 GBP1 Chirag Patel Mode of inheritance for gene: GBP1 was changed from BIALLELIC, autosomal or pseudoautosomal to Unknown
Congenital hypothyroidism v0.100 GBP1 Chirag Patel Classified gene: GBP1 as Amber List (moderate evidence)
Congenital hypothyroidism v0.100 GBP1 Chirag Patel Gene: gbp1 has been classified as Amber List (Moderate Evidence).
Congenital hypothyroidism v0.99 GBP1 Chirag Patel gene: GBP1 was added
gene: GBP1 was added to Congenital hypothyroidism. Sources: Literature
Mode of inheritance for gene: GBP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GBP1 were set to 34194003
Phenotypes for gene: GBP1 were set to Congenital hypothyroidism, MONDO:0018612
Review for gene: GBP1 was set to AMBER
Added comment: PMID 34194003 reports 3 individuals from 3 unrelated families presenting with congenital hypothyroidism (neonatal onset, elevated TSH, low thyroid hormone, thyroid dysgenesis or diffuse hypoechoic thyroid). 1 individual had biallelic variants (p.E336fs and p.H150Y1) with parents as heterozygous unaffected carriers. The other 2 individuals had a heterozygous variant (p.R20X or p.L187P) inherited from an unaffected parent. Methylation-specific PCR and pyrosequencing found the CpG site of GBP1 was hypermethylated in the genomic DNA isolated from the 2 probands compared with their euthyroid parents.

Zebrafish morpholino knockdown of gbp1 causes thyroid primordium malformation and hypothyroidism. The phenotype was rescued by wild‑type human GBP1 mRNA but not by mutant p.H150Y or p.L187P. Human TPC1 thyroid cells expressing mutant GBP1 show mislocalisation, loss of β‑catenin interaction and disrupted adhesion complex formation.
Sources: Literature