This report describes Adams-Oliver syndrome 3, an automosomal dominant form of Adams-Oliver syndrome. The human gene implicated in this disease is RBPJ, a transcriptional regulator important in the Notch signaling pathway. There is a single orthologous gene in Drosophila, Dmel\Su(H), for which classical loss-of-function alleles, RNAi-targeting constructs, and alleles caused by insertional mutagenesis have been generated.
The human gene RBPJ gene has not been introduced into flies.
Amorphic and loss-of-function mutations of Dmel\Su(H) are lethal; hemizogotes die in the pupal stage. Neurogenic phenotypes are observed.
[updated Sept. 2022 by FlyBase; FBrf0222196]
[ADAMS-OLIVER SYNDROME 3; AOS3](https://omim.org/entry/614814)
[RECOMBINATION SIGNAL-BINDING PROTEIN FOR IMMUNOGLOBULIN KAPPA J REGION; RBPJ](https://omim.org/entry/147183)
Adams-Oliver Syndrome 3 is an autosomal dominant form of Adams-Oliver syndrome, involving cutis dysplasia of the vertex scalp and terminal limb defects, but without congenital heart defects, immune defects, or other assorted anomalies observed in other forms of Adams-Oliver syndrome (Hassed et al., 2012; pubmed:22883147). [from MIM:614814; 2022.09.26]
Adams-Oliver syndrome 3 is caused by heterozygous mutation in the RBPJ gene on chromosome 4p15. [from MIM:614814; 2022.09.26]
The protein encoded by RBPJ is a transcriptional regulator important in the Notch signaling pathway. The encoded protein acts as a repressor when not bound to Notch proteins and an activator when bound to Notch proteins. It is thought to function by recruiting chromatin remodeling complexes containing histone deacetylase or histone acetylase proteins to Notch signaling pathway genes. Several transcript variants encoding different isoforms have been found for this gene, and several pseudogenes of this gene exist on chromosome 9. [ Entrez:3516 ; 2022.09.26]
Two to one: human gene to Drosophila gene.
High-scoring ortholog of human RBPJ; moderate-scoring ortholog of human RBPJL (1 Drosophila to 2 human).