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| Ataxia and cerebellar anomalies - narrow panel v8.33 | TSEN34 |
Ida Ertmanska changed review comment from: PMID: 20952379 Namavar et al., 2011 Reported one Pontocerebellar hypoplasia type 2C patient with a homozygous p.R58W variant in TSEN34 and epileptic seizures. PCH2 patient with seizures and TSEN34 variant reported in (most likely the same patient as in PMID:18711368 Budde et al., 2008). Sequenced exon-intron boundaries of TSEN54, TSEN34, TSEN2, TSEN15, RARS2 and VRK1 only. PMID: 27370523 Balbi, Taicher & Litman, 2016 Brief mention of a 2-year-old female child diagnosed with TSEN34-related pontocerebellar hypoplasia Type 2 - no variant/clinical details. Functional evidence: PMID: 32476018 Hayne et al., 2020 / PMID: 37544645 Hayne et al., 2023 Human tRNA splicing endonuclease (TSEN) is comprised of four core subunits (TSEN54, TSEN2, TSEN34 and TSEN15), and it co-purifies with CLP1. Other TSEN subunits and CLP1 are all known to cause PCH. The TSEN34 R58W mutation eliminates a salt bridge between R58 and E218, affecting protein stability. Additional info: Variant NM_001077446.4(TSEN34):c.862_865dup (p.Leu289fs) was reported as Likely Pathogenic for Pontocerebellar hypoplasia type 2C in ClinVar by Mendelics (source: clinical testing). This gene is putatively linked to AR Pontocerebellar hypoplasia type 2C, MIM:612390 (OMIM accessed 15th Dec 2025).; to: PMID: 20952379 Namavar et al., 2011 Reported one Pontocerebellar hypoplasia type 2C patient with a homozygous p.R58W variant in TSEN34 and epileptic seizures. PCH2 patient with seizures and TSEN34 variant reported in (most likely the same patient as in PMID:18711368 Budde et al., 2008). Sequenced exon-intron boundaries of TSEN54, TSEN34, TSEN2, TSEN15, RARS2 and VRK1 only. Patient details from PMID:18711368: Patient hg1, male, phenotype: progressive microcephaly, chorea/dystonia, visual impairment, spontaneous breath; MRI typical. PMID: 27370523 Balbi, Taicher & Litman, 2016 Brief mention of a 2-year-old female child diagnosed with TSEN34-related pontocerebellar hypoplasia Type 2 - no variant/clinical details. Functional evidence: PMID: 32476018 Hayne et al., 2020 / PMID: 37544645 Hayne et al., 2023 Human tRNA splicing endonuclease (TSEN) is comprised of four core subunits (TSEN54, TSEN2, TSEN34 and TSEN15), and it co-purifies with CLP1. Other TSEN subunits and CLP1 are all known to cause PCH. The TSEN34 R58W mutation eliminates a salt bridge between R58 and E218, affecting protein stability. Additional info: Variant NM_001077446.4(TSEN34):c.862_865dup (p.Leu289fs) was reported as Likely Pathogenic for Pontocerebellar hypoplasia type 2C in ClinVar by Mendelics (source: clinical testing). This gene is putatively linked to AR Pontocerebellar hypoplasia type 2C, MIM:612390 (OMIM accessed 15th Dec 2025). |
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| Ataxia and cerebellar anomalies - narrow panel v8.33 | TSEN34 |
Ida Ertmanska changed review comment from: PMID: 20952379 Namavar et al., 2011 Reported one Pontocerebellar hypoplasia type 2C patient with a homozygous p.R58W variant in TSEN34 and epileptic seizures. PCH2 patient with seizures and TSEN34 variant reported in (most likely the same patient as in PMID:18711368 Budde et al., 2008). Sequenced exon-intron boundaries of TSEN54, TSEN34, TSEN2, TSEN15, RARS2 and VRK1 only. PMID: 27370523 Balbi, Taicher & Litman, 2016 Brief report of a 2-year-old female child diagnosed with TSEN34-related pontocerebellar hypoplasia Type 2 - no variant details. Functional evidence: PMID: 32476018 Hayne et al., 2020 / PMID: 37544645 Hayne et al., 2023 Human tRNA splicing endonuclease (TSEN) is comprised of four core subunits (TSEN54, TSEN2, TSEN34 and TSEN15), and it co-purifies with CLP1. Other TSEN subunits and CLP1 are all known to cause PCH. The TSEN34 R58W mutation eliminates a salt bridge between R58 and E218, affecting protein stability. Additional info: Variant NM_001077446.4(TSEN34):c.862_865dup (p.Leu289fs) was reported as Likely Pathogenic for Pontocerebellar hypoplasia type 2C in ClinVar by Mendelics (source: clinical testing). This gene is putatively linked to AR Pontocerebellar hypoplasia type 2C, MIM:612390 (OMIM accessed 15th Dec 2025).; to: PMID: 20952379 Namavar et al., 2011 Reported one Pontocerebellar hypoplasia type 2C patient with a homozygous p.R58W variant in TSEN34 and epileptic seizures. PCH2 patient with seizures and TSEN34 variant reported in (most likely the same patient as in PMID:18711368 Budde et al., 2008). Sequenced exon-intron boundaries of TSEN54, TSEN34, TSEN2, TSEN15, RARS2 and VRK1 only. PMID: 27370523 Balbi, Taicher & Litman, 2016 Brief mention of a 2-year-old female child diagnosed with TSEN34-related pontocerebellar hypoplasia Type 2 - no variant/clinical details. Functional evidence: PMID: 32476018 Hayne et al., 2020 / PMID: 37544645 Hayne et al., 2023 Human tRNA splicing endonuclease (TSEN) is comprised of four core subunits (TSEN54, TSEN2, TSEN34 and TSEN15), and it co-purifies with CLP1. Other TSEN subunits and CLP1 are all known to cause PCH. The TSEN34 R58W mutation eliminates a salt bridge between R58 and E218, affecting protein stability. Additional info: Variant NM_001077446.4(TSEN34):c.862_865dup (p.Leu289fs) was reported as Likely Pathogenic for Pontocerebellar hypoplasia type 2C in ClinVar by Mendelics (source: clinical testing). This gene is putatively linked to AR Pontocerebellar hypoplasia type 2C, MIM:612390 (OMIM accessed 15th Dec 2025). |
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| Ataxia and cerebellar anomalies - narrow panel v8.33 | TSEN34 |
Ida Ertmanska changed review comment from: PMID: 20952379 Namavar et al., 2011 Reported one Pontocerebellar hypoplasia type 2C patient with a homozygous p.R58W variant in TSEN34 and epileptic seizures. PCH2 patient with seizures and TSEN34 variant reported in (most likely the same patient as in PMID:18711368 Budde et al., 2008). Sequenced exon-intron boundaries of TSEN54, TSEN34, TSEN2, TSEN15, RARS2 and VRK1 only. PMID: 27370523 Balbi, Taicher & Litman, 2016 Brief report of a 2-year-old female child diagnosed with TSEN34-related pontocerebellar hypoplasia Type 2 - no variant details. Variant NM_001077446.4(TSEN34):c.862_865dup (p.Leu289fs) was reported as Likely Pathogenic for Pontocerebellar hypoplasia type 2C in ClinVar by Mendelics (source: clinical testing). This gene is putatively linked to AR Pontocerebellar hypoplasia type 2C, MIM:612390 (OMIM accessed 15th Dec 2025).; to: PMID: 20952379 Namavar et al., 2011 Reported one Pontocerebellar hypoplasia type 2C patient with a homozygous p.R58W variant in TSEN34 and epileptic seizures. PCH2 patient with seizures and TSEN34 variant reported in (most likely the same patient as in PMID:18711368 Budde et al., 2008). Sequenced exon-intron boundaries of TSEN54, TSEN34, TSEN2, TSEN15, RARS2 and VRK1 only. PMID: 27370523 Balbi, Taicher & Litman, 2016 Brief report of a 2-year-old female child diagnosed with TSEN34-related pontocerebellar hypoplasia Type 2 - no variant details. Functional evidence: PMID: 32476018 Hayne et al., 2020 / PMID: 37544645 Hayne et al., 2023 Human tRNA splicing endonuclease (TSEN) is comprised of four core subunits (TSEN54, TSEN2, TSEN34 and TSEN15), and it co-purifies with CLP1. Other TSEN subunits and CLP1 are all known to cause PCH. The TSEN34 R58W mutation eliminates a salt bridge between R58 and E218, affecting protein stability. Additional info: Variant NM_001077446.4(TSEN34):c.862_865dup (p.Leu289fs) was reported as Likely Pathogenic for Pontocerebellar hypoplasia type 2C in ClinVar by Mendelics (source: clinical testing). This gene is putatively linked to AR Pontocerebellar hypoplasia type 2C, MIM:612390 (OMIM accessed 15th Dec 2025). |
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| Ataxia and cerebellar anomalies - narrow panel v3.30 | CLP1 | Eleanor Williams Tag Q2_21_rating was removed from gene: CLP1. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v3.30 | CLP1 | Eleanor Williams reviewed gene: CLP1: Rating: GREEN; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v3.29 | CLP1 |
Eleanor Williams Source Expert Review Green was added to CLP1. Source NHS GMS was added to CLP1. Rating Changed from Amber List (moderate evidence) to Green List (high evidence) |
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| Ataxia and cerebellar anomalies - narrow panel v2.48 | CLP1 | Sarah Leigh edited their review of gene: CLP1: Added comment: Associated with relevant phenotype in OMIM and as probable Gen2Phen gene. A single variant was reported in Turkish families who shared an 11.5 Mb haplotype in the CLP1 region, this did not suggest a recent ancestory amongst seemingly unrelated families (PMID 24766809). Supportive functional studies and a mouse model were also reported.; Changed rating: GREEN; Changed publications: 24766810 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.48 | CLP1 | Sarah Leigh Tag Q2_21_rating tag was added to gene: CLP1. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.48 | CLP1 | Sarah Leigh Classified gene: CLP1 as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.48 | CLP1 | Sarah Leigh Added comment: Comment on list classification: There is enough evidence for this gene to be rated GREEN at the next major review. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.48 | CLP1 | Sarah Leigh Gene: clp1 has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.47 | CLP1 | Sarah Leigh Phenotypes for gene: CLP1 were changed from Pontocerebellar Hypoplasia; Pontocerebellar hypoplasia 10 OMIM:615803; Pontocerebellar hypoplasia type 10 MONDO:0014349 to Pontocerebellar hypoplasia 10 OMIM:615803; Pontocerebellar hypoplasia type 10 MONDO:0014349 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.46 | CLP1 | Sarah Leigh Phenotypes for gene: CLP1 were changed from Pontocerebellar Hypoplasia; Pontocerebellar hypoplasia 10 OMIM:615803 to Pontocerebellar Hypoplasia; Pontocerebellar hypoplasia 10 OMIM:615803; Pontocerebellar hypoplasia type 10 MONDO:0014349 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.45 | CLP1 | Sarah Leigh Tag founder-effect tag was added to gene: CLP1. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.45 | CLP1 | Sarah Leigh Phenotypes for gene: CLP1 were changed from Pontocerebellar Hypoplasia; Pontocerebellar hypoplasia 10 (#615803); Pontocerebellar Hypoplasia type 10 to Pontocerebellar Hypoplasia; Pontocerebellar hypoplasia 10 OMIM:615803 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.44 | CLP1 | Sarah Leigh Publications for gene: CLP1 were set to PMID: 24766810 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v2.43 | CLP1 | Zornitza Stark reviewed gene: CLP1: Rating: GREEN; Mode of pathogenicity: None; Publications: 24766809, 29307788; Phenotypes: Pontocerebellar hypoplasia, type 10, MIM# 615803; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ataxia and cerebellar anomalies - narrow panel v0.5 | CLP1 |
Ellen McDonagh Source Expert Review Red was added to CLP1. Added phenotypes Pontocerebellar hypoplasia 10 (#615803) for gene: CLP1 Rating Changed from Green List (high evidence) to Red List (low evidence) |
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| Ataxia and cerebellar anomalies - narrow panel v0.5 | CLP1 |
Ellen McDonagh gene: CLP1 was added gene: CLP1 was added to Ataxia and cerebellar anomalies - narrow panel. Sources: Expert Review Green Mode of inheritance for gene: CLP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CLP1 were set to PMID: 24766810 Phenotypes for gene: CLP1 were set to Pontocerebellar Hypoplasia; Pontocerebellar Hypoplasia type 10 |
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