Childhood onset hereditary spastic paraplegia
Gene: RNF170
The rating of this gene has been updated to Green and the mode of inheritance set to BIALLELIC, autosomal or pseudoautosomal following NHS Genomic Medicine Service approval.Created: 10 Oct 2023, 5:14 p.m. | Last Modified: 10 Oct 2023, 5:18 p.m.
Panel Version: 4.20
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Comment on list classification: There is sufficient evidence (6 unrelated cases) for this gene to be promoted to GREEN at the next major review.Created: 15 Mar 2023, 7:11 a.m. | Last Modified: 15 Mar 2023, 7:11 a.m.
Panel Version: 3.26
PMID:31636353 reported 9 patients from 4 unrelated families with childhood-onset spastic paraplegia. The age of onset of the condition ranged from 2 to 5 years of age and they were all identified with a homozygous variant in RNF170 gene. It is a neurological disorder characterised by the onset of motor symptoms in the first few years of life. Affected individuals have spasticity and hyperreflexia of the lower limbs resulting in gait abnormalities, with oilder patients also having upper limb involvement and axonal polyneuropathy.
PMID:33165979 reported four members from a single family carrying a homozygous stop gain variant in RNF170 and diagnosed with hereditary spastic paraplegia.
PMID:35041108 reported a 7 year old girl with novel homozygous missense variant in RNF170 and she presented with progressive difficulty in walking that started when she was 3 years old, lower limb predominant spastic paraparesis, and mild upper limbs involvement with slight tremor in the hands, all occurring in the absence of neurodevelopmental or growth delays.
This gene has been associated with relevant phenotypes in OMIM (MIM #619686), but not yet in Gene2Phenotype.Created: 15 Mar 2023, 7:03 a.m. | Last Modified: 15 Mar 2023, 7:05 a.m.
Panel Version: 3.23
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Spastic paraplegia 85, autosomal recessive, OMIM:619686
Publications
Four families reported with a complicated HSP phenotype.
Sources: Expert listCreated: 20 Sep 2020, 6:38 a.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Hereditary spastic paraplegia
Publications
Tag Q1_23_promote_green was removed from gene: RNF170.
Source Expert Review Green was added to RNF170. Source NHS GMS was added to RNF170. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Tag Q1_23_promote_green tag was added to gene: RNF170.
Gene: rnf170 has been classified as Amber List (Moderate Evidence).
Phenotypes for gene: RNF170 were changed from Hereditary spastic paraplegia to Spastic paraplegia 85, autosomal recessive, OMIM:619686
Publications for gene: RNF170 were set to 31636353
gene: RNF170 was added gene: RNF170 was added to Hereditary spastic paraplegia - childhood onset. Sources: Expert list Mode of inheritance for gene: RNF170 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RNF170 were set to 31636353 Phenotypes for gene: RNF170 were set to Hereditary spastic paraplegia Review for gene: RNF170 was set to GREEN