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Fetal anomalies v6.34 ARL2BP Arina Puzriakova Phenotypes for gene: ARL2BP were changed from Situs Inversus to Retinitis pigmentosa 82 with or without situs inversus, OMIM:615434; Situs Inversus
Fetal anomalies v6.29 PIGM Arina Puzriakova reviewed gene: PIGM: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Fetal anomalies v6.28 PIGM Elizabeth Scotchman commented on gene: PIGM: This gene and phenotype were reviewed during meetings in June & July 2025. The meetings included representatives of the North Thames and Central & South R21 testing GLHs and from the R21 Clinical Oversight Group. Clinical review and curation was performed by Natalie Chandler & Elizabeth Scotchman (North Thames GLH), Natalie Bibb, Stephanie Allen & Sarah Graham (Central & South GLH) and Alice Gardham, Esther Kinning, Vicki Harrison, Anna DeBurca, Natalie Canham, Elizabeth Wall, Sunayna Best, Soo-Mi Park & Sahar Mansour (R21 Clinical Oversight Group).
Fetal anomalies v6.24 PIGM Elizabeth Scotchman reviewed gene: PIGM: Rating: AMBER; Mode of pathogenicity: ; Publications: 25293775, 16767100; Phenotypes: Glycosylphosphatidylinositol deficiency; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Fetal anomalies v6.21 PIGM Arina Puzriakova gene: PIGM was added
gene: PIGM was added to Fetal anomalies. Sources: Expert Review Amber
Mode of inheritance for gene: PIGM was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIGM were set to 25293775; 16767100
Phenotypes for gene: PIGM were set to Glycosylphosphatidylinositol deficiency
Fetal anomalies v6.9 FLVCR1 Eleanor Williams Phenotypes for gene: FLVCR1 were changed from ATAXIA, POSTERIOR COLUMN, WITH RETINITIS PIGMENTOSA to Neurodevelopmental disorder with microcephaly, absent speech, and hypotonia, OMIM:621060; neurodevelopmental disorder with microcephaly, absent speech, and hypotonia, MONDO:0976126
Fetal anomalies v1.736 CLCN7 Arina Puzriakova Phenotypes for gene: CLCN7 were changed from CLCN7-RELATED OSTEOPETROSIS; Osteopetrosis, autosomal recessive 4, OMIM:611490; Osteopetrosis, autosomal dominant 2, OMIM:166600 to CLCN7-RELATED OSTEOPETROSIS; Osteopetrosis, autosomal recessive 4, OMIM:611490; Osteopetrosis, autosomal dominant 2, OMIM:166600; Hypopigmentation, organomegaly, and delayed myelination and development, OMIM:618541
Fetal anomalies v1.720 MED12 Eleanor Williams changed review comment from: Comment on mode of inheritance: Variants in this gene have also been reported in females with Hardikar syndrome (Li et al 2021, PMID: 33244166). The phenotype includes facial clefting, pigmentary retinopathy, biliary anomalies, hydronephrosis, and intestinal malrotation.

In addition Polla et al 2021 (PMID: 33244165) and Riccardi et al 2021 (PMID: 34079076) report 22 females in total with de novo variants in MED12. Some physical features such as syndactyly (10/22) and anteriorly placed anus (4/22) are noted. 12/22 have severe intellectual disability.

X-linked hemizygous mutation in males, monoallelic mutations in females is the appropriate mode of inheritance for Hardikar syndrome but there are carrier implications for the predominantly male-only phenotypes associated with this gene (e.g. Lujan-Fryns syndrome, Ohdo syndrome, X-linked and Opitz-Kaveggia syndrome) in female cases. ; to: Comment on mode of inheritance: Variants in this gene have also been reported in females with Hardikar syndrome (Li et al 2021, PMID: 33244166). The phenotype includes facial clefting, pigmentary retinopathy, biliary anomalies, hydronephrosis, and intestinal malrotation.

In addition Polla et al 2021 (PMID: 33244165) and Riccardi et al 2021 (PMID: 34079076) report 22 females in total with de novo variants in MED12. Some physical features such as syndactyly (10/22) and anteriorly placed anus (4/22) are noted. 12/22 have severe intellectual disability.

X-linked hemizygous mutation in males, monoallelic mutations in females is the appropriate mode of inheritance for Hardikar syndrome but there are carrier implications for the predominantly male-only phenotypes associated with this gene (e.g. Lujan-Fryns syndrome, Ohdo syndrome, X-linked and Opitz-Kaveggia syndrome) in female cases, therefore waiting for GMS review before considering changing the mode of inheritance.
Fetal anomalies v1.720 MED12 Eleanor Williams changed review comment from: Comment on mode of inheritance: Variants in this gene have also been reported in females with Hardikar syndrome (the phenotype that includes facial clefting, pigmentary retinopathy, biliary anomalies, hydronephrosis, and intestinal malrotation).

In addition Polla et al 2021 (PMID: 33244165) and Riccardi et al 2021 (PMID: 34079076) report 22 females in total with de novo variants in MED12. Some physical features such as syndactyly (10/22) and anteriorly placed anus (4/22) also noted. 12/22 have severe intellectual disability.

X-linked hemizygous mutation in males, monoallelic mutations in females is the appropriate mode of inheritance for Hardikar syndrome but there are carrier implications for the predominantly male-only phenotypes associated with this gene (e.g. Lujan-Fryns syndrome, Ohdo syndrome, X-linked and Opitz-Kaveggia syndrome) in female cases. ; to: Comment on mode of inheritance: Variants in this gene have also been reported in females with Hardikar syndrome (Li et al 2021, PMID: 33244166). The phenotype includes facial clefting, pigmentary retinopathy, biliary anomalies, hydronephrosis, and intestinal malrotation.

In addition Polla et al 2021 (PMID: 33244165) and Riccardi et al 2021 (PMID: 34079076) report 22 females in total with de novo variants in MED12. Some physical features such as syndactyly (10/22) and anteriorly placed anus (4/22) are noted. 12/22 have severe intellectual disability.

X-linked hemizygous mutation in males, monoallelic mutations in females is the appropriate mode of inheritance for Hardikar syndrome but there are carrier implications for the predominantly male-only phenotypes associated with this gene (e.g. Lujan-Fryns syndrome, Ohdo syndrome, X-linked and Opitz-Kaveggia syndrome) in female cases.
Fetal anomalies v1.720 MED12 Eleanor Williams changed review comment from: Comment on mode of inheritance: Variants in this gene have also been reported in females with Hardikar syndrome and phenotype that includes facial clefting, pigmentary retinopathy, biliary anomalies, hydronephrosis, and intestinal malrotation.

X-linked hemizygous mutation in males, monoallelic mutations in females is the appropriate mode of inheritance for Hardikar syndrome but there are carrier implications for the male-only phenotypes associated with this gene (e.g. Lujan-Fryns syndrome, Ohdo syndrome, X-linked and Opitz-Kaveggia syndrome) in female cases; to: Comment on mode of inheritance: Variants in this gene have also been reported in females with Hardikar syndrome (the phenotype that includes facial clefting, pigmentary retinopathy, biliary anomalies, hydronephrosis, and intestinal malrotation).

In addition Polla et al 2021 (PMID: 33244165) and Riccardi et al 2021 (PMID: 34079076) report 22 females in total with de novo variants in MED12. Some physical features such as syndactyly (10/22) and anteriorly placed anus (4/22) also noted. 12/22 have severe intellectual disability.

X-linked hemizygous mutation in males, monoallelic mutations in females is the appropriate mode of inheritance for Hardikar syndrome but there are carrier implications for the predominantly male-only phenotypes associated with this gene (e.g. Lujan-Fryns syndrome, Ohdo syndrome, X-linked and Opitz-Kaveggia syndrome) in female cases.
Fetal anomalies v1.718 MED12 Eleanor Williams Added comment: Comment on mode of inheritance: Variants in this gene have also been reported in females with Hardikar syndrome and phenotype that includes facial clefting, pigmentary retinopathy, biliary anomalies, hydronephrosis, and intestinal malrotation.

X-linked hemizygous mutation in males, monoallelic mutations in females is the appropriate mode of inheritance for Hardikar syndrome but there are carrier implications for the male-only phenotypes associated with this gene (e.g. Lujan-Fryns syndrome, Ohdo syndrome, X-linked and Opitz-Kaveggia syndrome) in female cases
Fetal anomalies v1.440 KLHL7 Arina Puzriakova Phenotypes for gene: KLHL7 were changed from Cold-induced sweating syndrome type 1 (CISS1-like Phenotype Associated with Early-Onset Retinitis Pigmentosa to PERCHING syndrome, OMIM:617055; PERCHING syndrome, MONDO:0014890
Fetal anomalies v1.264 MSTO1 Arina Puzriakova Phenotypes for gene: MSTO1 were changed from Myopathy, mitochondrial, and ataxia to Myopathy, mitochondrial, and ataxia, OMIM:617675; Mitochondrial myopathy-cerebellar ataxia-pigmentary retinopathy syndrome, MONDO:0044714
Fetal anomalies v1.195 SCLT1 Rhiannon Mellis gene: SCLT1 was added
gene: SCLT1 was added to Fetal anomalies. Sources: Literature
Mode of inheritance for gene: SCLT1 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: SCLT1 were set to No OMIM phenotype; Oro-facio-digital syndrome type IX; Senior-Løken Syndrome
Review for gene: SCLT1 was set to GREEN
Added comment: This gene and phenotype were reviewed during meetings at Great Ormond Street hospital in October 2020. This gene has a Green evidence rating on at least one other related PanelApp panel. Clinical review and curation was performed by Lyn Chitty, Rhiannon Mellis, and Richard Scott. Outcome of review: Confirmed that phenotype is fetally-relevant: add to the Fetal anomalies panel as a Green gene.

Green on related panel(s): Rare multisystem ciliopathy Super panel


Copied from rare multisystem ciliopathies panel:
PMID: 24285566 - Adly et al 2014 - 1 case with index patient with consanguineous Saudi parents and a severe ciliopathy phenotype. He had severe midline cleft lip and palate, microcephaly and choanal atresia. He also had significant eye involvement in the form of severe coloboma, and congenital heart disease (ASD and VSD). He had micropenis. Brain imaging revealed pachygyria and absent corpus callosum. He had abnormal inner ear structures. A splicing mutation was identified in SCLT1 (, NM_144643.2:exon5:c.290+2T>C). This mutation completely abolishes the consensus donor site of exon 5 as confirmed by RTPCR, which showed complete skipping of exon 5 resulting in a frameshift and introduction of a premature stop codon (p.Lys79Valfs*4),

PMID: 28005958 - de Castro-Miró et al 2016 - A cohort of 33 pedigrees affected with a variety of retinal disorders was analysed by WES. 1 case with compound heterozygosity (one missense and one splicing altering mutations) in SCLT1 that segregates with the condition in the family (2 affected siblings). Proposed to be causative of early-onset Retinitis Pigmentosa. SCLT1 is a member of the centrosomal/ciliary protein family.

PMID: 28486600 - Li et al 2017 - report a mouse model with mutated Sclt1 gene. The Sclt1-/- mice exhibit typical ciliopathy phenotypes, including cystic kidney, cleft palate and polydactyly.

PMID: 30425282 - Katagiri et al 2018 - a patient with Senior Løken syndrome and her unaffected parents revealed that the patient had infantile-onset retinal dystrophy and juvenile-onset nephronophthisis. Other systemic abnormalities included hepatic dysfunction, megacystis, mild learning disability, autism, obesity, and hyperinsulinemia. Whole-exome sequencing identified compound heterozygous SCLT1 variants (c.1218 + 3insT and c.1631A > G) in the patient. The unaffected parents were heterozygous for each variant. Transcript analysis using reverse transcription PCR demonstrated that the c.1218 + 3insT variant leads to exon 14 skipping (p.V383_M406del), while the other variant (c.1631A > G) primarily leads to exon 17 skipping (p.D480EfsX11) as well as minor amounts of two transcripts. Immunohistochemical analysis demonstrated that the Sclt1 protein was localized to the distal appendage of the photoreceptor basal body, indicating a ciliary protein.

= 3 cases plus a mouse model and functional evidence that the protein is a ciliary protein.
Sources: Literature
Fetal anomalies v1.186 ERCC5 Arina Puzriakova Phenotypes for gene: ERCC5 were changed from XERODERMA PIGMENTOSUM COMPLEMENTATION GROUP G to Cerebrooculofacioskeletal syndrome 3, OMIM:616570; Cerebrooculofacioskeletal syndrome 3, MONDO:0014696
Fetal anomalies v0.134 CIB2 Rebecca Foulger edited their review of gene: CIB2: Added comment: This gene and phenotype were reviewed during meetings at Great Ormond Street hospital in March 2019. Clinical review and curation was performed by Lyn Chitty, Anna de Burca, Rhiannon Mellis, Richard Scott, Ellen McDonagh and Rebecca Foulger. Outcome of review: Phenotype is not fetally-relevant. Additional notes from clinical review: The phenotypes of deafness and Retinitis pigmentosa (part of Usher syndrome, type IJ) would not present prenatally. Action taken: Demoted CIB2 gene rating from Green to Red. ; Changed rating: RED
Fetal anomalies v0.134 C2orf71 Rebecca Foulger edited their review of gene: C2orf71: Added comment: This gene and phenotype were reviewed during meetings at Great Ormond Street hospital in March 2019. Clinical review and curation was performed by Lyn Chitty, Anna de Burca, Rhiannon Mellis, Richard Scott, Ellen McDonagh and Rebecca Foulger. Outcome of review: Phenotype is not fetally-relevant. Additional notes from clinical review: Retinitis pigmentosa has adult onset with two patients reported with an earlier onset. Action taken: Demoted C2orf71 (PCARE) gene rating from Green to Red.; Changed rating: RED
Fetal anomalies v0.110 FAM161A Rebecca Foulger commented on gene: FAM161A: Changed rating to Amber to reflect DDG2P Disease confidence of 'DD and IF' for RETINITIS PIGMENTOSA 28.
Fetal anomalies v0.40 ERCC4 Rebecca Foulger Phenotypes for gene: ERCC4 were changed from XFE PROGEROID SYNDROME; FANCONI ANEMIA, COMPLEMENTATION GROUP Q; PRIMORDIAL DWARFISM; XERODERMA PIGMENTOSUM, GROUP F to XFE PROGEROID SYNDROME; FANCONI ANEMIA, COMPLEMENTATION GROUP Q; PRIMORDIAL DWARFISM; XERODERMA PIGMENTOSUM, GROUP F; Xeroderma pigmentosum, group F, 278760
Fetal anomalies v0.39 ERCC4 Rebecca Foulger Added comment: Comment on list classification: Updated rating from Amber to Green following email correspondance from Anna de Burca. Originally assigned an Amber rating because of different PAGE/DDG2P ratings for different disorders. Anna notes that ERCC4 is green on congenital anaemias panel for XP/progeroid syndrome and therefore Green rating is probably appropriate for Fetal anomalies panel also. Confirmed DD-G2P rating for XERODERMA PIGMENTOSUM, GROUP F.
Fetal anomalies v0.9 TTC8 Rebecca Foulger commented on gene: TTC8: DDG2P rating in original PAGE list: Confirmed for RETINITIS PIGMENTOSA TYPE 51 and Confirmed for BARDET-BIEDL SYNDROME TYPE 8.
Fetal anomalies v0.9 SOX10 Rebecca Foulger commented on gene: SOX10: DDG2P rating in original PAGE list: Confirmed for PERIPHERAL DEMYELINATING NEUROPATHY, CENTRAL DYSMYELINATING LEUKODYSTROPHY, WAARDENBURG SYNDROME, AND HIRSCHSPRUNG DISEASE, Confirmed for YEMENITE DEAF-BLIND HYPOPIGMENTATION SYNDROME, Confirmed for WAARDENBURG SYNDROME TYPE 2E, Confirmed for KALLMANN SYNDROME WITH DEAFNESS and Confirmed for WAARDENBURG SYNDROME TYPE 4C.
Fetal anomalies v0.9 C2orf71 Rebecca Foulger commented on gene: C2orf71: DDG2P rating in original PAGE list: Confirmed for RETINITIS PIGMENTOSA 54
Fetal anomalies v0.9 KLHL7 Rebecca Foulger commented on gene: KLHL7: DDG2P rating in original PAGE list: Probable for Cold-induced sweating syndrome type 1 (CISS1-like Phenotype Associated with Early-Onset Retinitis Pigmentosa
Fetal anomalies v0.9 IKBKG Rebecca Foulger commented on gene: IKBKG: DDG2P rating in original PAGE list: Confirmed for IMMUNODEFICIENCY NEMO-RELATED WITHOUT ANHIDROTIC ECTODERMAL DYSPLASIA, Confirmed for INCONTINENTIA PIGMENTI, Confirmed for ECTODERMAL DYSPLASIA ANHIDROTIC WITH IMMUNODEFICIENCY-OSTEOPETROSIS-LYMPHEDEMA, Confirmed for ECTODERMAL DYSPLASIA ANHIDROTIC WITH IMMUNODEFICIENCY X-LINKED and Confirmed for SUSCEPTIBILITY TO X-LINKED FAMILIAL ATYPICAL MICOBACTERIOSIS TYPE 1.
Fetal anomalies v0.9 FLVCR1 Rebecca Foulger commented on gene: FLVCR1: DDG2P rating in original PAGE list: Confirmed for ATAXIA, POSTERIOR COLUMN, WITH RETINITIS PIGMENTOSA
Fetal anomalies v0.9 ARL6 Rebecca Foulger commented on gene: ARL6: DDG2P rating in original PAGE list: Confirmed for BARDET-BIEDL SYNDROME TYPE 3 and Confirmed for RETINITIS PIGMENTOSA TYPE 55.
Fetal anomalies v0.1 XPC Rebecca Foulger gene: XPC was added
gene: XPC was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: XPC was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: XPC were set to XERODERMA PIGMENTOSUM, GROUP C
Fetal anomalies v0.1 XPA Rebecca Foulger gene: XPA was added
gene: XPA was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: XPA was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: XPA were set to XERODERMA PIGMENTOSUM, GROUP A
Fetal anomalies v0.1 TTC8 Rebecca Foulger gene: TTC8 was added
gene: TTC8 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: TTC8 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: TTC8 were set to RETINITIS PIGMENTOSA TYPE 51
Fetal anomalies v0.1 SOX10 Rebecca Foulger Added phenotypes YEMENITE DEAF-BLIND HYPOPIGMENTATION SYNDROME for gene: SOX10
Fetal anomalies v0.1 PDE6G Rebecca Foulger gene: PDE6G was added
gene: PDE6G was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: PDE6G was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: PDE6G were set to RETINITIS PIGMENTOSA 57
Fetal anomalies v0.1 C2orf71 Rebecca Foulger gene: C2orf71 was added
gene: C2orf71 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: C2orf71 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: C2orf71 were set to RETINITIS PIGMENTOSA 54
Fetal anomalies v0.1 KLHL7 Rebecca Foulger gene: KLHL7 was added
gene: KLHL7 was added to Fetal anomalies. Sources: PAGE DD-Gene2Phenotype,Expert Review Amber
Mode of inheritance for gene: KLHL7 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: KLHL7 were set to Cold-induced sweating syndrome type 1 (CISS1-like Phenotype Associated with Early-Onset Retinitis Pigmentosa
Fetal anomalies v0.1 IKBKG Rebecca Foulger Added phenotypes INCONTINENTIA PIGMENTI for gene: IKBKG
Fetal anomalies v0.1 FLVCR1 Rebecca Foulger gene: FLVCR1 was added
gene: FLVCR1 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: FLVCR1 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: FLVCR1 were set to ATAXIA, POSTERIOR COLUMN, WITH RETINITIS PIGMENTOSA
Fetal anomalies v0.1 FAM161A Rebecca Foulger gene: FAM161A was added
gene: FAM161A was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: FAM161A was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: FAM161A were set to RETINITIS PIGMENTOSA 28
Fetal anomalies v0.1 ERCC5 Rebecca Foulger gene: ERCC5 was added
gene: ERCC5 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: ERCC5 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: ERCC5 were set to XERODERMA PIGMENTOSUM COMPLEMENTATION GROUP G
Fetal anomalies v0.1 ERCC4 Rebecca Foulger Added phenotypes XERODERMA PIGMENTOSUM, GROUP F for gene: ERCC4
Fetal anomalies v0.1 ERCC3 Rebecca Foulger gene: ERCC3 was added
gene: ERCC3 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: ERCC3 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: ERCC3 were set to XERODERMA PIGMENTOSUM COMPLEMENTATION GROUP B
Fetal anomalies v0.1 ERCC2 Rebecca Foulger Added phenotypes XERODERMA PIGMENTOSUM COMPLEMENTATION GROUP D for gene: ERCC2
Fetal anomalies v0.1 EPG5 Rebecca Foulger gene: EPG5 was added
gene: EPG5 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: EPG5 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: EPG5 were set to IMMUNODEFICIENCY WITH CLEFT LIP/PALATE, CATARACT, HYPOPIGMENTATION, AND ABSENT CORPUS CALLOSUM
Fetal anomalies v0.1 DDB2 Rebecca Foulger gene: DDB2 was added
gene: DDB2 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: DDB2 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: DDB2 were set to XERODERMA PIGMENTOSUM, GROUP E, DDB-NEGATIVE SUBTYPE
Fetal anomalies v0.1 CWC27 Rebecca Foulger gene: CWC27 was added
gene: CWC27 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: CWC27 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: CWC27 were set to Retinitis pigmentosa, skeletal anomalies and intellectual disability
Fetal anomalies v0.1 CRB1 Rebecca Foulger gene: CRB1 was added
gene: CRB1 was added to Fetal anomalies. Sources: Expert Review Green,PAGE DD-Gene2Phenotype
Mode of inheritance for gene: CRB1 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: CRB1 were set to RETINITIS PIGMENTOSA-12, AUTOSOMAL RECESSIVE
Fetal anomalies v0.1 ARL6 Rebecca Foulger Added phenotypes RETINITIS PIGMENTOSA TYPE 55 for gene: ARL6