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Mendeliome v1.781 VWA8 Dean Phelan gene: VWA8 was added
gene: VWA8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: VWA8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: VWA8 were set to PMID: 37012052
Phenotypes for gene: VWA8 were set to Retinitis pigmentosa (MONDO:0019200), VWA8-related
Review for gene: VWA8 was set to AMBER
Added comment: PMID: 37012052
- Single family with 11 affected patients, 9 - 87y, all presented initial symptoms of night blindness, visual field defects and reduced visual acuity later, macular changes, including macular degeneration and dystrophy. A heterozygous two-loci variant in VWA8 c.3070G>A;c.4558C>T (p.Gly1024Arg; p.Arg1520Ter) was identified and segregated with disease. Expression studies showed reduced protein expression. Zebrafish knockout model displayed an RP phenotype.
Sources: Literature
Mendeliome v1.335 NDNF Elena Savva Phenotypes for gene: NDNF were changed from Congenital hypogonadotropic hypogonadism (CHH) to Hypogonadotropic hypogonadism 25 with anosmia MIM#618841
Mendeliome v1.334 NDNF Elena Savva Classified gene: NDNF as Amber List (moderate evidence)
Mendeliome v1.334 NDNF Elena Savva Gene: ndnf has been classified as Amber List (Moderate Evidence).
Mendeliome v1.333 NDNF Elena Savva reviewed gene: NDNF: Rating: AMBER; Mode of pathogenicity: None; Publications: 31883645; Phenotypes: Hypogonadotropic hypogonadism 25 with anosmia MIM#618841; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Mendeliome v1.285 HNRNPH1 Hazel Phillimore reviewed gene: HNRNPH1: Rating: AMBER; Mode of pathogenicity: None; Publications: PMID: 35989590; Phenotypes: early onset high myopia, blindness; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.14609 GNAT1 Zornitza Stark Phenotypes for gene: GNAT1 were changed from to Night blindness, congenital stationary, autosomal dominant 3, MIM# 610444; Night blindness, congenital stationary, type 1G, MIM# 616389
Mendeliome v0.14606 GNAT1 Zornitza Stark reviewed gene: GNAT1: Rating: GREEN; Mode of pathogenicity: None; Publications: 8673138, 17584859, 22190596, 26472407, 11095744, 11095744, 30051303; Phenotypes: Night blindness, congenital stationary, autosomal dominant 3, MIM# 610444, Night blindness, congenital stationary, type 1G, MIM# 616389; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.14606 GNB3 Zornitza Stark Phenotypes for gene: GNB3 were changed from to Night blindness, congenital stationary, type 1H, MIM# 617024
Mendeliome v0.14603 GNB3 Zornitza Stark reviewed gene: GNB3: Rating: GREEN; Mode of pathogenicity: None; Publications: 27063057, 17065478; Phenotypes: Night blindness, congenital stationary, type 1H, MIM# 617024; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.14010 GUCY2D Zornitza Stark Phenotypes for gene: GUCY2D were changed from to Cone-rod dystrophy 6, MIM# 601777; Leber congenital amaurosis 1, MIM# 204000; Night blindness, congenital stationary, type 1I, MIM# 618555
Mendeliome v0.14007 GUCY2D Zornitza Stark reviewed gene: GUCY2D: Rating: GREEN; Mode of pathogenicity: None; Publications: 35314386, 35205358; Phenotypes: Cone-rod dystrophy 6, MIM# 601777, Leber congenital amaurosis 1, MIM# 204000, Night blindness, congenital stationary, type 1I, MIM# 618555; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.13633 SLC24A1 Zornitza Stark Phenotypes for gene: SLC24A1 were changed from to Night blindness, congenital stationary (complete), 1D, autosomal recessive, MIM#613830, MONDO:0013450
Mendeliome v0.13616 SLC24A1 Manny Jacobs reviewed gene: SLC24A1: Rating: GREEN; Mode of pathogenicity: None; Publications: 35486108, 35446361, 20850105, 26822852; Phenotypes: Night blindness, congenital stationary (complete), 1D, autosomal recessive, MIM#613830, MONDO:0013450; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.13190 PDE6B Zornitza Stark Phenotypes for gene: PDE6B were changed from to Night blindness, congenital stationary, autosomal dominant 2 - MIM#163500; Retinitis pigmentosa-40 - MIM#613801
Mendeliome v0.13100 PDE6B Krithika Murali reviewed gene: PDE6B: Rating: GREEN; Mode of pathogenicity: None; Publications: 8394174, 8075643, 17044014, 7599633, 18854872; Phenotypes: Night blindness, congenital stationary, autosomal dominant 2 - MIM#163500, Retinitis pigmentosa-40 - MIM#613801; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.12821 TRPM1 Zornitza Stark Phenotypes for gene: TRPM1 were changed from to Night blindness, congenital stationary (complete), 1C, autosomal recessive, MIM# 613216
Mendeliome v0.12818 TRPM1 Zornitza Stark reviewed gene: TRPM1: Rating: GREEN; Mode of pathogenicity: None; Publications: 19878917, 19896113, 19896109; Phenotypes: Night blindness, congenital stationary (complete), 1C, autosomal recessive, MIM# 613216; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12243 OPN1SW Zornitza Stark Phenotypes for gene: OPN1SW were changed from to Colourblindness, tritan - MIM#190900
Mendeliome v0.12240 OPN1MW Zornitza Stark Phenotypes for gene: OPN1MW were changed from to Blue cone monochromacy - MIM#303700; Colourblindness, deutan - MIM#303800
Mendeliome v0.12236 OPN1LW Zornitza Stark Phenotypes for gene: OPN1LW were changed from to Blue cone monochromacy - MIM#303700; Colourblindness, protan - MIM#303900
Mendeliome v0.12224 OPN1SW Krithika Murali reviewed gene: OPN1SW: Rating: GREEN; Mode of pathogenicity: None; Publications: 1531728, 2937147, 22065927, 32400513, 31944634; Phenotypes: Colorblindness, tritan - MIM#190900; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.12224 OPN1MW Krithika Murali reviewed gene: OPN1MW: Rating: AMBER; Mode of pathogenicity: None; Publications: 25168334, 32860923; Phenotypes: Blue cone monochromacy - MIM#303700, Colorblindness, deutan - MIM#303800; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.12224 OPN1LW Krithika Murali reviewed gene: OPN1LW: Rating: AMBER; Mode of pathogenicity: None; Publications: 25168334, 32860923; Phenotypes: Blue cone monochromacy - MIM#303700, Colorblindness, protan - MIM#303900; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.12099 CACNA1F Ain Roesley Phenotypes for gene: CACNA1F were changed from to Aland Island eye disease MIM#300600; Cone-rod dystrophy, X-linked, 3 MIM#300476; Night blindness, congenital stationary (incomplete), 2A, X-linked MIM#300071
Mendeliome v0.12097 CACNA1F Ain Roesley reviewed gene: CACNA1F: Rating: GREEN; Mode of pathogenicity: None; Publications: 17525176, 16505158, 23776498, 24124559, 26075273, 25999675; Phenotypes: Aland Island eye disease MIM#300600, Cone-rod dystrophy, X-linked, 3 MIM#300476, Night blindness, congenital stationary (incomplete), 2A, X-linked MIM#300071; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females; Current diagnostic: yes
Mendeliome v0.9499 RHO Zornitza Stark Phenotypes for gene: RHO were changed from to Night blindness, congenital stationary, autosomal dominant 1, MIM# 610445; Retinitis pigmentosa 4, autosomal dominant or recessive, MIM# 613731
Mendeliome v0.9496 RHO Zornitza Stark reviewed gene: RHO: Rating: GREEN; Mode of pathogenicity: None; Publications: 18487375, 27812022, 31213501, 1303237; Phenotypes: Night blindness, congenital stationary, autosomal dominant 1, MIM# 610445, Retinitis pigmentosa 4, autosomal dominant or recessive, MIM# 613731; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.9473 LRIT3 Zornitza Stark Phenotypes for gene: LRIT3 were changed from to Night blindness, congenital stationary (complete), 1F, autosomal recessive, MIM# 615058
Mendeliome v0.9470 LRIT3 Zornitza Stark reviewed gene: LRIT3: Rating: GREEN; Mode of pathogenicity: None; Publications: 23246293, 24598786, 31578364, 27428514; Phenotypes: Night blindness, congenital stationary (complete), 1F, autosomal recessive, MIM# 615058; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.9470 NYX Zornitza Stark Phenotypes for gene: NYX were changed from to Night blindness, congenital stationary (complete), 1A, X-linked MIM#310500
Mendeliome v0.9467 NYX Zornitza Stark reviewed gene: NYX: Rating: GREEN; Mode of pathogenicity: None; Publications: 11062471, 11062472, 16670814, 23714322, 34064005, 34165036; Phenotypes: Night blindness, congenital stationary (complete), 1A, X-linked MIM#310500; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.9467 GRM6 Zornitza Stark Phenotypes for gene: GRM6 were changed from to Night blindness, congenital stationary (complete), 1B, autosomal recessive 257270
Mendeliome v0.9464 GRM6 Zornitza Stark reviewed gene: GRM6: Rating: GREEN; Mode of pathogenicity: None; Publications: 22008250; Phenotypes: Night blindness, congenital stationary (complete), 1B, autosomal recessive 257270; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.9461 GPR179 Zornitza Stark Phenotypes for gene: GPR179 were changed from to Night blindness, congenital stationary (complete), 1E, autosomal recessive (MIM#614565)
Mendeliome v0.9458 GPR179 Zornitza Stark reviewed gene: GPR179: Rating: GREEN; Mode of pathogenicity: None; Publications: 22325361; Phenotypes: Night blindness, congenital stationary (complete), 1E, autosomal recessive (MIM#614565); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.9293 NDN Zornitza Stark Marked gene: NDN as ready
Mendeliome v0.9293 NDN Zornitza Stark Gene: ndn has been classified as Red List (Low Evidence).
Mendeliome v0.9293 NDN Zornitza Stark Phenotypes for gene: NDN were changed from to Prader-Willi syndrome, MIM# 176270
Mendeliome v0.9292 NDN Zornitza Stark Mode of inheritance for gene: NDN was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.9291 NDN Zornitza Stark Classified gene: NDN as Red List (low evidence)
Mendeliome v0.9291 NDN Zornitza Stark Gene: ndn has been classified as Red List (Low Evidence).
Mendeliome v0.9290 NDN Zornitza Stark reviewed gene: NDN: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: Prader-Willi syndrome, MIM# 176270; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.5222 MPP5 Konstantinos Varvagiannis gene: MPP5 was added
gene: MPP5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MPP5 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: MPP5 were set to 33073849
Phenotypes for gene: MPP5 were set to Global developmental delay; Intellectual disability; Delayed speech and language development; Developmental regression; Behavioral abnormality
Penetrance for gene: MPP5 were set to unknown
Review for gene: MPP5 was set to GREEN
Added comment: Sterling et al (2020 - PMID: 33073849) provide information on the phenotype of 3 individuals with de novo MPP5 variants.

Common features included global developmental delay, intellectual disability (3/3 - severe in 2/3), speech delay/regression (the latter in at least 2) and behavioral abnormalities. Variable other features were reported, among others microcephaly (1/3), abnormal vision (1/3 : CVI, retinal dystrophy, nystagmus), brain MRI abnormalities (2/3), late-onset seizures (1/3). These subjects displayed variable and non-specific dysmorphic features.

All were investigated by exome sequencing (previous investigations not mentioned).

One subject was found to harbor a de novo mosaic (5/25 reads) stopgain variant, further confirmed by Sanger sequencing [NM_022474.4:c.1555C>T - p.(Arg519Ter). The specific variant is reported once in gnomAD (1/251338). Two de novo missense variants were identified in the remaining individuals [c.1289A>G - p.Glu430Gly / c.974A>C - p.His325Pro). All variants had in silico predictions in favor of a deleterious effect (CADD score >24).

The authors comment that MPP5 encodes an apical complex protein with asymmetric localization to the apical side of polarized cells. It is expressed in brain, peripheral nervous system and other tissues. MPP5 is a member of the membrane-associated guanylate kinase family of proteins (MAGUK p55 subfamily), determining cell polarity at tight junctions.

Previous animal models suggest that complete Mpp5(Pals1) KO in mice leads to near absence of cerebral cortical neurons. Htz KO display reduction in size of cerebral cortex and hippocampus. The gene is expressed in proliferating cell populations of cerebellum and important for establishment cerebellar architecture. Conditional KO of Mpp5(Pals1) in retinal progenitor cells mimics the retinal pathology observed in LCA. [Several refs. provided]

The authors studied a heterozygous CNS-specific Mpp5 KO mouse model. These mice presented microcephaly, decreased cerebellar volume and cortical thickness, decreased ependymal cells and Mpp5 at the apical surface of cortical vertrical zone. The proportion of cortical cells undergoing apoptotic cell death was increased. Mice displayed behavioral abnormalities (hyperactivity) and visual deficits, with ERG traces further suggesting retinal blindness.

Overall the mouse model was thought to recapitulate the behavioral abnormalities observed in affected subjects as well as individual rare features such as microcephaly and abnormal vision.

Haploinsufficiency (rather than a dominant negative effect) is favored as the underlying disease mechanism. This is also in line with a dose dependent effect observed in mice.
Sources: Literature
Mendeliome v0.4991 SREBF1 Zornitza Stark edited their review of gene: SREBF1: Added comment: HMD phenotype: 5 unrelated families reported with heterozygous variants at same residue (p.Arg557Cys and p.Arg557His) and a panepithelial defect involving the oral, nasal, conjunctival, vaginal, cervical, perineal, urethral, and bladder mucosa. Individuals developed cataracts, blindness, nonscarring alopecia, perineal psoriasiform lesions, and follicular keratoses.; Changed publications: 32497488, 31790666, 32902915; Changed phenotypes: IFAP (ichthyosis follicularis, atrichia, and photophobia) syndrome 2, MIM619016, Mucoepithelial dysplasia, hereditary, MIM#158310
Mendeliome v0.4125 DIAPH1 Zornitza Stark Phenotypes for gene: DIAPH1 were changed from to Deafness; thrombocytopenia 124900; Seizures; cortical blindness; microcephaly 616632
Mendeliome v0.4114 DIAPH1 Dean Phelan reviewed gene: DIAPH1: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 24781755, 26463574, 24781755, 27808407, 28003573, 28815995; Phenotypes: Deafness, thrombocytopenia, Seizures, cortical blindness, microcephaly; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.3623 RIMS2 Zornitza Stark Phenotypes for gene: RIMS2 were changed from nystagmus; retinal dysfunction; autism; night blindness to nystagmus; retinal dysfunction; autism; night blindness; Cone-rod synaptic disorder syndrome, congenital nonprogressive , MIM#618970
Mendeliome v0.3622 RIMS2 Zornitza Stark edited their review of gene: RIMS2: Changed phenotypes: nystagmus, retinal dysfunction, autism, night blindness, Cone-rod synaptic disorder syndrome, congenital nonprogressive , MIM#618970
Mendeliome v0.2964 RIMS2 Zornitza Stark Phenotypes for gene: RIMS2 were changed from to nystagmus; retinal dysfunction; autism; night blindness
Mendeliome v0.2962 RIMS2 Zornitza Stark reviewed gene: RIMS2: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: nystagmus, retinal dysfunction, autism, night blindness; Mode of inheritance: None
Mendeliome v0.2956 RIMS2 Paul De Fazio changed review comment from: Biallelic LoF variants segregate with Syndromic Congenital Cone-Rod Synaptic Disease in 7 individuals across 4 families. Some functional studies related to insulin secretion but they are non-significant.
Sources: Literature; to: Biallelic LoF variants segregate with Syndromic Congenital Cone-Rod Synaptic Disease in 7 individuals across 4 families. Some functional studies related to insulin secretion but they are non-significant. Several individuals had autism. One had night blindness.
Sources: Literature
Mendeliome v0.2770 NDNF Zornitza Stark Marked gene: NDNF as ready
Mendeliome v0.2770 NDNF Zornitza Stark Gene: ndnf has been classified as Green List (High Evidence).
Mendeliome v0.2770 NDNF Zornitza Stark Classified gene: NDNF as Green List (high evidence)
Mendeliome v0.2770 NDNF Zornitza Stark Gene: ndnf has been classified as Green List (High Evidence).
Mendeliome v0.2769 NDNF Zornitza Stark gene: NDNF was added
gene: NDNF was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NDNF was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NDNF were set to 31883645
Phenotypes for gene: NDNF were set to Congenital hypogonadotropic hypogonadism (CHH)
Review for gene: NDNF was set to GREEN
Added comment: Three heterozygous protein-truncating variants and one heterozygous missense variant identified in a cohort of 240 unrelated IHH patients. The authors also provided supporting evidence from animal models.
Sources: Literature
Mendeliome v0.2602 CACNB4 Zornitza Stark edited their review of gene: CACNB4: Added comment: PMID 32176688: A homozygous missense variant (Leu126Pro) reported in two siblings with intellectual disability, psychomotor retardation, blindness, epilepsy, movement disorder and cerebellar atrophy. Some functional data.; Changed publications: 10762541, 9628818, 27003325, 32176688; Changed phenotypes: Episodic ataxia, type 5, MIM#613855, Intellectual disability, Epilepsy, Movement disorder
Mendeliome v0.831 NKX2-2 Zornitza Stark gene: NKX2-2 was added
gene: NKX2-2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NKX2-2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NKX2-2 were set to 24411943; 9584121
Phenotypes for gene: NKX2-2 were set to Syndromic neonatal diabetes, with severe developmental delay, hypotonia, cortical blindness, hearing impairment
Review for gene: NKX2-2 was set to GREEN
Added comment: Sources: Expert list
Mendeliome v0.0 NDN Zornitza Stark gene: NDN was added
gene: NDN was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: NDN was set to Unknown