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An autosomal recessive non-syndromic intellectual disability that has material basis in an autosomal recessive mutation of the RUSC2 gene on chromosome 9p13.
Features include always present findings: Low muscle tone (hypotonia) and Intellectual disability; and very common findings: Axial hypotonia. 47 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 12 | Aggressive behavior, Intellectual disability, Babinski sign |
RUSC2 function has not been fully characterized.
Intellectual disability, autosomal recessive 61 has been associated with mutations in the RUSC2 gene on chromosome 9.
Genetic testing for RUSC2 is available. Testing is considered supportive for diagnosis.
Biomarker and diagnostic research for intellectual disability, autosomal recessive 61 has been reported in the published literature.
Phenotype severity distribution: 2 always present features, 1 very common feature, 36 common features.
No clinical trials have been registered for intellectual disability, autosomal recessive 61.
10 publications have been identified in PubMed for intellectual disability, autosomal recessive 61. Research spans Case Report / Case Series (40%), Epidemiology / Natural History (20%), and Other (10%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 4 | 40% |
Data assembled from 6 of 12 sources · Last updated Sep 20, 2026, 11:15 AM UTC
Online Mendelian Inheritance in Man
5 |
Decreased muscle mass, Low muscle tone (hypotonia), Proximal muscle weakness |
Head and neck | 4 | High palate, Long face, Secondary microcephaly |
Arms and legs | 3 | Prominent fingertip pads, Long fingers, Tapered finger |
Bones and joints | 2 | Joint hypermobility, Sideways curvature of the spine (scoliosis) |
Age of onset: at birth.
Disease patterns and progression
2 |
20% |
Other research | 1 | 10% |
Testing and diagnosis research | 1 | 10% |
Research summaries | 1 | 10% |
Clinical study results | 1 | 10% |
Araújo S (2025). [PMID: 39688442](https://pubmed.ncbi.nlm.nih.gov/39688442/). *JBRA assisted reproduction*. [Diagnostic / Biomarker]
Di Folco C (2025). [PMID: 40832806](https://pubmed.ncbi.nlm.nih.gov/40832806/). *Movement disorders : official journal of the Movement Disorder Society*. [Review / Meta-Analysis]
Almuatiri AM (2025). [PMID: 40670066](https://pubmed.ncbi.nlm.nih.gov/40670066/). *Neurosciences (Riyadh, Saudi Arabia)*. [Epidemiology / Natural History]
Skocy H (2025). [PMID: 40687628](https://pubmed.ncbi.nlm.nih.gov/40687628/). *Molecular genetics and metabolism reports*. [Case Report / Case Series]
Wright CA (2025). [PMID: 39924478](https://pubmed.ncbi.nlm.nih.gov/39924478/). *Mol Cytogenet*. [Other]
Thanuja B (2025). [PMID: 40088508](https://pubmed.ncbi.nlm.nih.gov/40088508/). *Pediatric neurology*. [Epidemiology / Natural History]
Smith CEL (2024). [PMID: 38458752](https://pubmed.ncbi.nlm.nih.gov/38458752/). *Journal of medical genetics*. [Case Report / Case Series]
Ahmed AN (2024). [PMID: 39415096](https://pubmed.ncbi.nlm.nih.gov/39415096/). *BMC neurology*. [Clinical Trial Publication]
Kentab AY (2024). [PMID: 38745833](https://pubmed.ncbi.nlm.nih.gov/38745833/). *Frontiers in pediatrics*. [Case Report / Case Series]
AlKadhem SM (2024). [PMID: 39726451](https://pubmed.ncbi.nlm.nih.gov/39726451/). *Cureus*. [Case Report / Case Series]