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Congenital anomalies of the kidney and urinary tract (CAKUT) v1.0 WDR44 Gene migrated from ENSG00000131725 to ENSG00000131725 (gene set migration)
Congenital anomalies of the kidney and urinary tract (CAKUT) v0.134 WDR44 Seb Lunke Marked gene: WDR44 as ready
Congenital anomalies of the kidney and urinary tract (CAKUT) v0.134 WDR44 Seb Lunke Added comment: Comment when marking as ready: GoF mentioned but not well supported.
Congenital anomalies of the kidney and urinary tract (CAKUT) v0.134 WDR44 Seb Lunke Gene: wdr44 has been classified as Green List (High Evidence).
Congenital anomalies of the kidney and urinary tract (CAKUT) v0.134 WDR44 Seb Lunke Classified gene: WDR44 as Green List (high evidence)
Congenital anomalies of the kidney and urinary tract (CAKUT) v0.134 WDR44 Seb Lunke Gene: wdr44 has been classified as Green List (High Evidence).
Congenital anomalies of the kidney and urinary tract (CAKUT) v0.133 WDR44 Andrew Fennell gene: WDR44 was added
gene: WDR44 was added to Congenital anomalies of the kidney and urinary tract (CAKUT) Syndromic. Sources: Literature
Mode of inheritance for gene: WDR44 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: WDR44 were set to PMID: 38191484
Phenotypes for gene: WDR44 were set to Ciliopathy, MONDO:0005308, WDR44-related
Review for gene: WDR44 was set to GREEN
Added comment: 11 male patients with 6 missense and 1 nonsense variant in WDR44 displaying a wide range of cognitive impairment and variable congenital anomalies associated with primary cilium dysfunction.
3 patients had renal anomalies including 1 with unilateral cystic kidney disease; and nephritis, and kidney hypoplasia resulting in renal failure in two patients.
All patients had learning difficulties with 8 labelled as intellectually disabled (mild-moderate). Other clinical features included anomalies of craniofacial, musculoskeletal, brain, and cardiac development.
WDR44 is a negative regulator of ciliogenesis. Increased binding is hypothesised to underlie the pathogenicity of WDR44 variants identified in this cohort. Functional data supported impaired ciliogenesis initiation in patient fibroblasts and a zebrafish model. A zebrafish model recapitulated the human phenotype when morphants expressed WDR44 L668S, D669N, S764F, G782C, H839R, and R733* variants. Of note, D648G or N840S did not recapitulate the phenotype in the zebrafish model.
The studies supported a GoF mechanism, but the authors could not rule out that LoF of WDR44 contributes to the ciliopathy-like phenotype observed, because protein expression data was only available for a limited number of patients.
Sources: Literature