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Cerebellar and Pontocerebellar Hypoplasia v1.19 EXOSC5 Zornitza Stark Phenotypes for gene: EXOSC5 were changed from Short stature; Motor developmental delays; Cerebellar hypoplasia; Ataxia to Cerebellar ataxia, brain abnormalities, and cardiac conduction defects, MIM# 619576; Short stature; Motor developmental delays; Cerebellar hypoplasia; Ataxia
Cerebellar and Pontocerebellar Hypoplasia v1.18 EXOSC5 Zornitza Stark edited their review of gene: EXOSC5: Changed phenotypes: Cerebellar ataxia, brain abnormalities, and cardiac conduction defects, MIM# 619576, Short stature, Motor developmental delays, Cerebellar hypoplasia, Ataxia
Cerebellar and Pontocerebellar Hypoplasia v0.150 EXOSC5 Zornitza Stark Phenotypes for gene: EXOSC5 were changed from Developmental delays, short stature, cerebellar hypoplasia and motor weakness to Short stature; Motor developmental delays; Cerebellar hypoplasia; Ataxia
Cerebellar and Pontocerebellar Hypoplasia v0.149 EXOSC5 Zornitza Stark Classified gene: EXOSC5 as Green List (high evidence)
Cerebellar and Pontocerebellar Hypoplasia v0.149 EXOSC5 Zornitza Stark Gene: exosc5 has been classified as Green List (High Evidence).
Cerebellar and Pontocerebellar Hypoplasia v0.148 EXOSC5 Zornitza Stark Deleted their comment
Cerebellar and Pontocerebellar Hypoplasia v0.148 EXOSC5 Zornitza Stark edited their review of gene: EXOSC5: Added comment: - PMID: 32504085 (2020) - Five patients from four families with biallelic variants in EXOSC5. Clinical features included short stature (3/5), developmental delays that affect motor skills (3/5), hypotonia (4/5), ataxia (3/4), cerebellar hypoplasia/atrophy (4/5). Cognitive function was generally preserved, but included mild speech delays in one patient.
Cerebellar ataxia was described in two sibs and one singleton - all of whom were compound heterozygous for the p.Thr114Ile variant, inherited in trans with a frameshift variant (p.His30Thrfs*35) or deletion involving exons 5–6 of EXOSC5, respectively.

A LoF zebrafish model resulted in a variety of morphological defects including shortened and curved tails/bodies, reduced eye/head size and oedema. Functional studies of the variants in budding yeast and cultured cells showed some defects in RNA exosome function and interactions, that could not be explained by decrease in the steady-state level of EXOSC5.

- PMID: 29302074 (2019) - Three sibs with a homozygous EXOSC5 variant (p.Thr114Ile), associated with mild motor delays, cerebellar ataxia, nystagmus, dysarthria, and moderate ID. The family is also described in PMID: 30950035. No functional studies of the variant were undertaken.; Changed rating: GREEN; Changed publications: 32504085, 29302074; Changed phenotypes: Short stature, Motor developmental delays, Cerebellar hypoplasia, Ataxia; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Cerebellar and Pontocerebellar Hypoplasia v0.68 EXOSC5 Zornitza Stark Marked gene: EXOSC5 as ready
Cerebellar and Pontocerebellar Hypoplasia v0.68 EXOSC5 Zornitza Stark Added comment: Comment when marking as ready: Pre-print
Cerebellar and Pontocerebellar Hypoplasia v0.68 EXOSC5 Zornitza Stark Gene: exosc5 has been classified as Amber List (Moderate Evidence).
Cerebellar and Pontocerebellar Hypoplasia v0.68 EXOSC5 Zornitza Stark Phenotypes for gene: EXOSC5 were changed from to Developmental delays, short stature, cerebellar hypoplasia and motor weakness
Cerebellar and Pontocerebellar Hypoplasia v0.67 EXOSC5 Zornitza Stark Publications for gene: EXOSC5 were set to
Cerebellar and Pontocerebellar Hypoplasia v0.66 EXOSC5 Zornitza Stark Mode of inheritance for gene: EXOSC5 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Cerebellar and Pontocerebellar Hypoplasia v0.65 EXOSC5 Zornitza Stark Classified gene: EXOSC5 as Amber List (moderate evidence)
Cerebellar and Pontocerebellar Hypoplasia v0.65 EXOSC5 Zornitza Stark Gene: exosc5 has been classified as Amber List (Moderate Evidence).
Cerebellar and Pontocerebellar Hypoplasia v0.61 EXOSC5 Elena Savva changed review comment from: No phenotype association in OMIM, emerging gene with a single paper

3 patients reported: one patient with cerebellar hypoplasia, another with reduced cerebellar vermis; to: No phenotype association in OMIM, emerging gene with a single paper

3 patients reported: one patient with cerebellar hypoplasia, another with reduced cerebellar vermis

Summary: 2/3 patients have cerebellar/vermis hypoplasia
Cerebellar and Pontocerebellar Hypoplasia v0.61 EXOSC5 Elena Savva reviewed gene: EXOSC5: Rating: AMBER; Mode of pathogenicity: None; Publications: doi: https://doi.org/10.1101/2020.04.01.839274; Phenotypes: Developmental delays, short stature, cerebellar hypoplasia and motor weakness; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Cerebellar and Pontocerebellar Hypoplasia v0.0 EXOSC5 Zornitza Stark gene: EXOSC5 was added
gene: EXOSC5 was added to Cerebellar and Pontocerebellar hypoplasia_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: EXOSC5 was set to Unknown